Amico Cat

34751 AMICO Cover 10/18/2000 5:10 PM Page 1

Birmingham, AL 205 787-2611 800 366-2642Chicago, IL 815 932-1200 800 238 0322Dallas, TX 214 630-8066 877 630-3173Dayton, TX 936 258-5521 800-622-5765Denver, CO 303 377-5688 800 425-5558Fontana, CA 909 350-9280 800 962-0100Greenville, SC 864 458-7241 800 476-4430Houston, TX 713 921-5355 800 433-9945Jackson, MS 601 922-2614 800 366-2642Kansas City, MO 816 587-8202 800 255-0190

Lafayette, LA 337 406-2345 800 326-8842Lakeland, FL 863 688-9256 800 487-2511Liberty, MO 816-781-4736 800 472-3121New Castle, DE 302 429-9136 800 476-4430Orem, UT 801 225-9350 800 645-0340Seattle, WA 253 872-5363 800 859-5363Visaila, CA 559 651-1889 800 642-4334Burlington, ON 905 335-4474 800 663-4474Montreal, PQ 450 687-0790 800 361-0009Vancouver, BC 604 882-5367 800 665-4474

Corporate Sales Fax: 205/780-7838

34751 AMICO Cover 10/18/2000 5:11 PM Page 3

11

Contents Expanded Metal and Expanded Metal Grating . . . . . . . . . . . . . . . . . . .2-12

Regular and Flattened Expanded Metal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .2-7

Stainless Steel and Aluminum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .6

Expanded Metal Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .8-9

How To Order . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .10

Standard Pallets . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11

Nomenclature . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .12

Bar Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13-69Types of Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .13

Steel Bar Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .14-48

Standard Welded / Press Locked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .15-16

Close Mesh Welded / Press Locked . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .17-21

Stainless Steel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .22-23

Railroad Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .24

Heavy Duty Steel Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .25-35

Aluminum Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .36-48

I-Bar Swage-locked Aluminum . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .37-40

Rectangular Bar Swage-locked and Press-locked Aluminum . . . . . . . . . . . . . . . . . . . . . .41-47

Duo-GripTM Extruded Aluminum Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .48

Riveted Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .49-55

Steel Riveted Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .50-51

Aluminum Riveted Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .52-53

Riv-Dexteel Bridge Deck Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .54-55

Stair Treads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .56-62

Anchoring Details . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .63

Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .64

Welding Standards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .65

Manufacturing Tolerances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .66

Glossary . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .67

Grating Design Data . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .68-69

Safety Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70-90Diamond-Grip Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .70-73

Diamond-Grip Walkway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .74-75

Safety-Grip Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .76-79

Safety-Grip Walkway . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .80-81

Safety-Tread Channel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .82-83

Safety-Tread Flooring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .84-85

Safety-Tread Ladder Rungs . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .86-87

Stair Treads . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .88

Installation Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .89

Slip Resistant Values . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .90

Fiberglass Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91-104GatorGrate Open Molded Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .91-93

Kordek and Kordek-IITM Compression Molded . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .94-97

Gator-Deck Pultruded Grating . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .98-102

Accessories . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .103

GatorGrate Stair Tread . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .104

VISIT OUR WEBSITE AT: WWW.AMICO-GRATING.COM

Expanded Metal

Expanded Metal Grating

Welded Bar Grating

Press Locked Bar Grating

Fiberglass Grating

Safety Grating

34751 AMICO 1-12.q 10/17/00 7:20 AM Page 1

Expanded Metal

2

REGULAR EXPANDED METAL is a finished product as it comes from thepress after having been die cut and expanded. The illustration shows thatthe strands and bonds form a sharp angle to the original plane of the solidsheet.

FLATTENED EXPANDED METAL is a regular expanded metal which hasbeen cold rolled, leaving a flat, smooth surface. The length of the sheet iselongated usually by 5% while the width stays the same.

1 1/2" #9 REGULAR 1 1/2" #9 FLATTENED

3/4" #9 REGULAR 3/4" #9 FLATTENED



Patterns shown actual size

34751 AMICO 1-12.q 10/17/00 7:20 AM Page 2

Expanded Metal

3

REGULAR

SWD Shall not vary greater than 1/4 inches per foot of SWDdimension, to a maximum of 1 inch overall.LWD Shall not vary greater than 1/4 inch per foot of length.

FLATTENED

SWD After flattening shall not vary from the nominal dimen-sion more than 1/4 inch per foot of dimension to a maximum of1 inch overall.LWD After flattening shall not vary from the nominal dimensionmore than 1/4 inch per foot of dimension.

CLOSED DIAMONDS ALL FOUR SIDES

Flatness (Levelness) Sheets shall be free from waves or buck-les that are in excess of 3/4 in. from a plane surface.

Sketch A typifies the edge conditions of a normal standard sizesheet as it emerges from the expanding press. It is simply expand-ed to size and is characterized by closed diamonds on all foursides.

Camber The greatest deviation of a side edge from a straightline shall not exceed 1/16 in. per foot of dimension , SWD andLWD. Regular.

Camber After Flattening The greatest deviation of a side edgefrom a straight line after flattening shall not exceed 3/32 in. perfoot of dimension.

Squareness Edges shall be such that any intersecting sides shallnot be out of square in excess of 1/8 in. per foot either direction, to amaximum of 1/2 in. overall regular.

Squareness After Flattening Ends shall not be more than 1/8 in.per foot out of square or 3/8 in. overall in relation to the side of thesheet used to gauge the shearing.

Random sheared one side and one end 1/4", causing open diamond one sideSWD and one side LWD.

Expanded Metal Grating 1/2".

Random sheared LWD ends 1/8",causing open diamonds on LWD.

Expanded Metal Grating 1/4".

Random sheared SWD and LWD 1/8".Open diamonds all four sides. Thisprocess will resquare the sheet and elimi-nates the out of square and camber toler-ance found in stock size sheets. Note: Random sheared on ExpandedMetal Grating 1/4".

SKETCHB

SKETCHA

SKETCHC

SKETCHD

1/4 in./ft.

1/4 in./ft.

Regular SWD

Regu

lar L

WD

Flattened SWD

Flat

tene

d LW

D

1/

4 in

./ft.

1/

4 in

./ft.

RANDOM SHEARED TOLERANCE

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Regular Expanded Metal

4

CARBON STEEL-ASTM A 569/569M

StyleWeight inlbs. perC.S.F

StandardSizes in

Feet

Size ofOpenings in

inches

Center toCenter ofBond in inches

Size ofStrands in

inches

Percent Open Area

No. ofDiamonds

per ft. SWD

OverallThickness in inches

Plain Galv. Width Length Width Length Width Length Width Thickness

3/16" #22 62 A B B 0.166 0.437 0.200 0.500 0.050 0.030 60 60 0.086

3/16" #20 75 A B B 0.166 0.437 0.200 0.500 0.050 0.036 57 60 0.090

1/4" #20 86 129 4-8 8-4 0.172 0.719 0.255 1.000 0.073 0.036 45 47 0.125

1/4" #18 114 171 4-8 8-4 0.172 0.719 0.255 1.000 0.073 0.048 43 47 0.125

5/16" #18 104 - 4-8 8-4 0.188 0.688 0.333 1.000 0.094 0.048 60 36 0.170

1/2" #20 43 59 4-8 8-4 0.438 0.938 0.500 1.200 0.072 0.036 80 24 0.124

1/2" #18 70 85 4-6-8 8-10-4 0.438 0.938 0.500 1.200 0.088 0.048 77 24 0.155

1/2" #16 86 97 4-6-8 8-10-4 0.375 0.938 0.500 1.200 0.086 0.060 71 24 0.157

1/2" #13 147 173 4-6-8 8-10-4 0.313 0.938 0.500 1.200 0.096 0.092 58 24 0.182

1/2" #13(188) 282 310 8 4 0.250 0.800 0.500 1.200 0.188 0.092 25 24 0.275

3/4" #16 54 65 4-6-8 8-10-4 0.813 1.750 0.923 2.000 0.099 0.060 85 13 0.186

3/4" #13 80 92 4-6-8 8-10-4 0.750 1.688 0.923 2.000 0.096 0.092 78 13 0.195

3/4" #10 (13ga) 120 136 4-6-8 8-10-4 0.750 1.625 0.923 2.000 0.144 0.092 77 13 0.282

3/4" #9 (10ga) 180 195 4-6-8 8-10-12 0.688 1.563 0.923 2.000 0.148 0.134 68 13 0.300

1" #16 44 51 4-8 8-4 1.000 2.063 1.090 2.400 0.096 0.060 86 11 0.182

1" #14 76 82 4-8 8-4 0.875 1.563 1.090 2.400 0.122 0.075 75 11 0.225

1" #12 101 108 4-8 8-4 0.907 1.563 1.090 2.400 0.109 0.105 78 11 0.225

1" #10 170 187 4-8 8-4 0.750 1.563 1.090 2.400 0.155 0.135 62 11 0.375

1" #10H 200 221 4-8 8-4 0.725 1.563 1.090 2.400 0.180 0.135 60 11 0.390

1" #7 412 453 8 4 0.576 1.563 1.090 2.400 0.275 0.183 45 11 0.550

1 1/2" #18 20 25 4-8 8-4 1.313 2.625 1.330 3.000 0.067 0.048 93 9 0.140

1 1/2" #16 40 48 4-8 8-10-12-4 1.250 2.625 1.330 3.000 0.107 0.060 89 9 0.211

1 1/2" #14 44 50 4-8 8-4 1.188 2.625 1.330 3.000 0.097 0.075 85 9 0.242

1 1/2" #13 60 68 4-6-8 8-10-12-4 1.188 2.500 1.330 3.000 0.104 0.092 86 9 0.215

1 1/2" #12 72 85 4-8 8-4 1.112 2.375 1.330 3.000 0.109 0.105 83 9 0.225

1 1/2" #10 (13ga) 79 89 4-6-8 8-10-4 1.188 2.500 1.330 3.000 0.137 0.092 85 9 0.289

1 1/2" #10 (10ga) 170 187 4-8 8-4 1.000 2.375 1.330 3.000 0.200 0.135 74 9 0.350

1 1/2" #10H 200 220 4-8 8-4 0.830 2.375 1.330 3.000 0.240 0.135 72 9 0.460

1 1/2" #9 (10ga) 120 131 4-6-8 8-10-12-4 1.125 2.375 1.330 3.000 0.142 0.135 75 9 0.295

1 1/2" #6 250 273 4-6-8 8-10-12-4 1.000 2.313 1.330 3.000 0.201 0.198 63 9 0.425

2" #10 68 75 B B 1.625 3.438 1.850 4.000 0.164 0.092 86 6.5 0.312

2" #9 90 102 B B 1.563 3.375 1.850 4.000 0.149 0.134 86 6.5 0.325

Above conforms to EMMA 557-99

A. Not AvailableB. Special Order only

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Flattened Expanded Metal

5

CARBON STEEL-ASTM A 569/569M


StandardSizes in

Feet

Size ofOpenings in

inches


Size ofStrands in

inches

Percent Open Area

No. ofDiamonds

per ft. SWD


Plain Galv. Width Length Width Length Width Length Width Thickness

3/16" #22 60 A B B 0.085 0.459 0.200 0.520 0.057 0.024 40 60 0.024

3/16" #20 72 A B B 0.085 0.459 0.200 0.520 0.057 0.029 39 60 0.029

1/4" #20 83 124 4-8 8-4 0.094 0.688 0.255 1.030 0.086 0.030 47 47 0.030

1/4" #18 111 165 4-8 8-4 0.094 0.688 0.255 1.030 0.086 0.040 40 47 0.040

5/6" #18 95 - 4-8 8-4 0.172 0.813 0.333 1.030 0.099 0.040 45 36 0.040

1/2" #20 40 51 4-8 8-4 0.375 1.000 0.500 1.260 0.070 0.029 72 24 0.029

1/2" #18 66 88 3-4-6-8 8-10-4 0.281 1.000 0.500 1.260 0.109 0.039 69 24 0.039

1/2" #16 82 100 3-4-6-8 8-10-4 0.250 1.000 0.500 1.260 0.103 0.050 60 24 0.050

1/2" #13 140 162 3-4-6-8 8-10-4 0.250 1.000 0.500 1.260 0.122 0.070 57 24 0.070

3/4" #16 51 61 3-4-6-8 8-10-4 0.750 1.750 0.923 2.100 0.115 0.048 75 13 0.048

3/4" #14 63 75 3-4-6-8 8-10-4 0.688 1.813 0.923 2.100 0.119 0.061 70 13 0.061

3/4" #13 75 86 3-4-6-8 8-10-4 0.688 1.782 0.923 2.100 0.119 0.070 73 13 0.070

3/4" #10 (13ga) 114 125 4-8 8-4 0.637 1.755 0.923 2.100 0.160 0.070 68 13 0.070

3/4" #9 (10ga) 171 186 3-4-6-8 8-10-12-4 0.563 1.688 0.923 2.100 0.164 0.120 63 13 0.120

1" #16 41 50 4-8 8-4 0.875 2.250 1.090 2.560 0.115 0.048 77 11 0.048

1" #14 73 77 4-8 8-4 0.790 2.000 1.090 2.560 0.125 0.070 80 11 0.070

1" #12 96 110 4-8 8-4 0.785 2.000 1.090 2.560 0.156 0.085 74 11 0.085

1" #10 165 179 4-8 8-4 0.750 1.900 1.090 2.560 0.160 0.110 58 11 0.110

1 1/2" #16 38 44 4-8 8-4 1.063 2.750 1.330 3.200 0.123 0.048 82 9 0.048

1 1/2" #14 46 56 3-4-6-8 8-4 1.063 2.750 1.330 3.200 0.138 0.060 82 9 0.060

1 1/2" #13 57 68 3-4-6-8 8-4 1.063 2.750 1.330 3.200 0.138 0.070 80 9 0.070

1 1/2" #12 66 76 4-8 8-4 1.296 2.625 1.330 3.200 0.116 0.085 85 9 0.085

1 1/2" #10 165 179 4-8 8-4 0.900 2.560 1.330 3.200 0.188 0.110 63 9 0.110

1 1/2 #9 (10ga) 111 128 3-4-6-8 8-10-12-4 1.000 2.563 1.330 3.200 0.175 0.110 77 9 0.110


A. Not AvailableB. Special Order only

34751 AMICO 1-12.q 10/17/00 7:21 AM Page 5

3/16" .032 23 B B 0.166 0.437 0.200 0.500 0.050 0.032 52 60 0.0681/2" .051 27 4 8 0.375 0.938 0.500 1.200 0.094 0.051 70 24 0.1581/2" .081 44 4 8 0.375 0.938 0.500 1.200 0.096 0.081 60 24 0.1863/4" .051 17 4 8 0.813 1.175 0.923 2.000 0.109 0.051 90 13 0.2003/4" .064 22 4-8 8-4 0.823 1.660 0.923 2.000 0.111 0.064 75 13 0.2003/4" .081 41 4 8 0.750 1.688 0.923 2.000 0.166 0.081 74 13 0.3003/4" .081L 27 4-8 8-4 0.750 1.680 0.923 2.000 0.110 0.081 76 13 0.2003/4" .081H 41 4-8 8-4 0.750 1.688 0.923 2.000 0.165 0.081 69 13 0.3003/4" .125 65 4 8 0.688 1.688 0.923 2.000 0.170 0.125 66 13 0.3053/4" .188 113 4-8 8-4 0.590 1.350 0.923 2.000 0.200 0.188 60 13 0.400

1 1/2" .051 13 4-8 8-4 1.225 2.400 1.330 3.000 0.110 0.051 88 9 0.2001 1/2" .081 22 4 8 1.188 2.500 1.333 3.000 0.128 0.081 87 9 0.2401 1/2" .125 43 4 8 1.188 2.500 1.333 3.000 0.163 0.125 78 9 0.300

A. Not Available Above conforms to EMMA 557-99B. Special Order Only

ALUMINUM REGULAR-ALLOY 5005 H34 (AVAILABLE IN 3003 H14)

3/16" .032 25 8 4 0.078 0.313 0.218 0.438 0.060 0.029 43 60 0.0281/2" .051 25 4 8 0.313 1.000 0.500 1.270 0.091 0.040 57 24 0.0401/2" .081 41 4 8 0.313 1.000 0.500 1.270 0.103 0.060 57 24 0.0603/4" .051 16 4 8 0.750 1.813 0.923 2.120 0.114 0.040 73 13 0.0403/4" .064 20 4-8 8-4 0.750 1.780 0.923 2.130 0.122 0.051 72 13 0.0513/4" .081L 25 4-8 8-4 0.687 1.750 0.923 2.215 0.134 0.070 70 13 0.0703/4" .081H 38 4-8 8-4 0.688 1.750 0.923 2.120 0.172 0.070 63 13 0.0703/4" .125 61 4 8 0.625 1.750 0.923 2.120 0.180 0.095 55 13 0.0953/4" .188 107 4-8 8-4 0.484 1.593 0.923 2.130 0.205 0.170 60 13 0.170

1 1/2" .051 11 4-8 8-4 1.095 2.750 1.330 3.090 0.120 0.040 80 9 0.0401 1/2" .081 20 4 8 1.063 2.750 1.333 3.150 0.144 0.055 75 9 0.0551 1/2" .125 40 4 8 1.000 2.750 1.333 3.150 0.190 0.080 65 9 0.080

ALUMINUM FLATTENED-ALLOY 5005 H34 (AVAILABLE IN 3003 H14)

Stainless Steel & Aluminum

6


StandardSizes in

Feet

Size ofOpenings in

inches


Size ofStrands in

inches

Percent Open Area

No. ofDiamonds

per ft. SWD


1/2" #20 50 4 8 0.437 0.937 0.500 1.200 0.080 0.037 70 24 0.1641/2" #18 73 4 8 0.438 0.938 0.500 1.200 0.087 0.050 77 24 0.1641/2" #16 91 4 8 0.438 0.938 0.500 1.200 0.087 0.062 70 24 0.1641/2" #13 187 4 8 0.313 0.875 0.500 1.200 0.120 0.093 58 24 0.2253/4" #18 48 4 8 0.813 1.750 0.923 2.000 0.106 0.050 89 13 0.2003/4" #16 60 4 8 0.813 1.750 0.923 2.000 0.106 0.062 85 13 0.2003/4" #13 91 4 8 0.750 1.688 0.923 2.000 0.108 0.093 78 13 0.2003/4" #9 205 4 8 0.688 1.563 0.923 2.000 0.161 0.140 67 13 0.300

1 1/2" #16 45 4 8 1.250 2.750 1.333 3.000 0.115 0.062 89 9 0.2201 1/2" #13 68 4 8 1.250 2.625 1.333 3.000 0.116 0.093 86 9 0.2201 1/2" #9 137 4 8 1.125 2.500 1.333 3.000 0.155 0.140 75 9 0.280Above conforms to EMMA 557-99

1/2" #20 48 4 8 0.312 1.000 0.500 1.260 0.091 0.033 60 24 0.0331/2" #18 69 4 8 0.313 1.000 0.500 1.260 0.093 0.040 68 24 0.0401/2" #16 86 4 8 0.313 1.000 0.500 1.260 0.093 0.050 60 24 0.0501/2" #13 178 4 8 0.250 1.000 0.500 1.260 0.132 0.080 56 24 0.0803/4" #18 46 4 8 0.750 1.813 0.923 2.100 0.118 0.040 77 13 0.0403/4" #16 57 4 8 0.750 1.813 0.923 2.100 0.118 0.050 75 13 0.0503/4" #13 87 4 8 0.625 1.750 0.923 2.100 0.120 0.070 74 13 0.0703/4" #9 95 4 8 0.563 1.688 0.923 2.100 0.160 0.119 64 13 0.119

1 1/2" #16 43 4 8 1.063 2.750 1.330 3.150 0.124 0.050 83 9 0.0501 1/2" #13 65 4 8 1.000 2.625 1.330 3.150 0.124 0.079 79 9 0.0791 1/2" #9 131 4 8 0.938 2.625 1.330 3.150 0.165 0.119 76 9 0.119Above conforms to EMMA 557-99

STAINLESS STEEL REGULAR-TYPE 304 (AVAILABLE IN T-304L, T-316, T-316L)

STAINLESS STEEL FLATTENED-TYPE 304 (AVAILABLE IN T-304L, T-316, T-316L)


34751 AMICO 1-12.q 10/17/00 7:21 AM Page 6

Expanded Metal

7

2.0 lb-3.0 lb-4.0 lb-5.0 lb-6.25 lb-7.0 lb 3.14 lb 4.25 lb


StandardSizes in

Feet

Size ofOpenings in

inches


Size ofStrands in

inches

Percent Open Area

No. ofDiamonds

per ft. SWD


Plain Galv. Width Length Width Length Width Length Width Thickness2 lb 200 218 4-6 8 1.000 3.600 1.333 5.330 0.235 0.135 77 9 0.4603 lb 300 320 4-6 8-10 0.938 3.438 1.333 5.330 0.261 0.183 73 9 0.500

3.14 lb 314 334 4-6 8-10 1.625 4.875 2.000 6.000 0.308 0.250 74 6 0.5624 lb 400 430 4-5-6 8-10 0.938 3.438 1.333 5.330 0.297 0.215 65 9 0.625

4.27 lb 427 457 4-6 8-10 1.000 2.875 1.412 4.000 0.297 0.250 58 8.5 0.6255 lb 500 550 4-5-6 8-10 0.813 3.375 1.333 5.330 0.327 0.250 52 9 0.625

6.25 lb 625 685 4-6 8-10 0.813 3.375 1.412 5.330 0.347 0.312 55 8.5 0.7507 lb 700 750 4-6 8 0.813 3.375 1.412 5.330 0.338 0.312 60 8.5 0.750


CARBON STEEL GRATING-ASTM A 569/569M


StandardSizes in

Feet

Size ofOpenings in

inches


Size ofStrands in

inches

Percent Open Area

2 lb 200 218 8 4 1.000 3.600 1.333 5.330 0.235 0.135 77 9 0.4603 lb 300 320 8-10 2-2.6-3-4 0.938 3.438 1.333 5.330 0.261 0.183 73 9 0.500

3.14 lb 314 334 8-10 2-2.6-3-4 1.625 4.875 2.000 6.000 0.308 0.250 74 6 0.5624 lb 400 430 8-10 2-2.6-3-4 0.938 3.438 1.330 5.330 0.297 0.215 65 9 0.625

4.27 lb 427 457 8-10 2-2.6-3-4 1.000 2.875 1.412 4.000 0.297 0.250 58 8.5 0.6255 lb 500 550 8-10 2-2.6-3-4 0.813 3.375 1.333 5.330 0.327 0.250 52 9 0.625

6.25 lb 625 685 8 4 0.813 3.375 1.412 5.330 0.347 0.312 55 8.5 0.750Above conforms to EMMA 557-99

CARBON STEEL LONG LENGTH SWD (CATWALK GRATING)-ASTM A 569/569M

2 lb 200 - 4-6 8 1.000 3.600 1.333 5.330 0.235 0.250 77 9 0.460Above conforms to EMMA 557-99

ALUMINUM GRATING-ALLOY 5052 H32

2 lb 200 - 8 2-2.6-3-4 1.000 3.600 1.333 5.330 0.235 0.250 77 9 0.460Above conforms to EMMA 557-99

ALUMINUM LONG LENGTH SWD (CATWALK GRATING)-ALLOY 5052 H32

Plain Width Length Width Length Width Length Width ThicknessSteel 1.590 4-6 8 1.327 6.400 1.550 7.100 0.122 0.131 65Aluminum 0.630 4-6 8 1.250 6.125 1.500 5.330 0.125 0.134 65


ORNAMESH CARBON STEEL-ASTM A 569/569M-ALUMINUM ALLOY 5005 H34

34751 AMICO 1-12.q 10/17/00 7:21 AM Page 7


8

GratingStyle 50 100 150 200 250 300 350 400 450 500

2.0#CARBON STEEL

3.0#CARBON STEEL

3.14#CARBON STEEL

4.0#CARBON STEEL

4.27#CARBON STEEL

5.0#CARBON STEEL

Load in Pounds_____________________________________________________________ Deflection in Inches

Clea

rSp

an

Load

Cond

.c

u

c

u

c

u

c

u

c

u

c

u

Deflections shown in shaded areas can be safely used at the discretion of the engineer: however, these deflections exceed 14".

18" .052 .105 .158 .211 .264 .317 36724" .125 .250 .175 .50030" .244 .48936" .42218" .049 .099 .147 .196 .245 .294 .34324" .156 .313 .46830" .38236" .79124" .068 .132 .197 .263 .329 .395 .46230" .116 .228 .345 .46036" .192 .380 .57042" .280 .56148" .380 .76224" .073 .146 .220 .293 .366 .44030" .155 .311 .46336" .330 .66042" .52724" .049 .094 .140 .187 .234 .280 .326 .372 .420 .46530" .099 .198 .297 .39536" .180 .357 .53542" .225 .455 .68448" .342 .68724" .057 .115 .173 .230 .288 .346 .404 .46230" .129 .259 .388 .51736" .315 .62642" .44948' .74524" .031 .064 .096 .128 .160 .192 .224 .256 .288 .32030" .060 .120 .180 .240 .300 .360 .420 .48036". 101 .205 .310 .402 .505 .60542" .158 .315 .473 .63048" .218 .433 .64824" .037 .073 .111 .147 .184 .222 .259 .296 .333 .37030" .068 .135 .205 .274 .340 .410 .477 .54536" .180 .358 .53642" .283 .56548" .48724" .038 .078 .116 .156 .196 .235 .275 .315 .355 .39530" .081 .163 .245 .327 .409 .49136" .124 .250 .379 .50542" .199 .399 .59848' .242 .480 .72024" .038 .079 .120 .160 .200 .240 .280 .320 .360 .40030" .078 .156 .235 .312 .390 .47036" .186 .373 .56042" .37948" .54224" .023 .047 .070 .093 .116 .140. 164 .186 .210 .23430" .033 .087 .130 .174 .217 .261 .304 .348. 391 .43336" .078 .154 .230 .305 .383 .458 .53542" .103 .206 .310 .414 .515 .61748" .155 .306 .459 .61054" .242 .485 .73024" .025 .050 .075 .100 .125 .150 .175 .200 .225 .25030" .061 .123 .184 .246 .307 .369 .430 .491 .55236" .133 .265 .395 .52642" .200 .400 .60048" .355 .70854" .605

LOAD & DEFLECTION TABLE

34751 AMICO 1-12.q 10/17/00 7:21 AM Page 8


9

Concentrated Load Lbs. LOAD INPer Foot of Width POUNDS 24 30" 36" 42 48 54 60"Occasional Pedest. Load(Window Washers)

50# 3.0#3.14#*

3.0#3.14#*

3.0#3.14#*

4.0#4.27#**

4.0#4.27#**

5.0# 6.25#

Normal Pedest. Load 100# 3.0#3.14#*3.0#

3.14#*4.0#

4.27#**5.0# 6.25#

Heavy Pedest.( With Light Equip.)

150# 3.0#3.14#*

4.0#4.27#**

5.0# 6.25#

200# 3.14#4.0#

4.0#4.27#**

6.25# 7.0#

250# 4.0#4.27#**

5.0#

300# 4.0#4.27#**

6.25#

350# 4.0#4.27#**

6.25#

400# 4.0#4.27#**

6.25#

CLEAR SPAN

This table is a convenient means of selecting grating for typical walk-way installations. If the distance between supports, and the load to be carried are known, the most eco-nomical type of grating to be used may be selected from the table below. Expanded metal grating has its greatest resistance to bending in the direction of the long way of thediamond. The LWD should always be placed across the span for best results.

*3.14# grating in lieu of 3# if the application requires a grating having a larger dia-mond. Example: Outside catwalk in ice and snow.

**4.27# grating may be used in lieu of 4# if the application requires a smaller dia-mond to afford protection from dropped tools and other objects.

AMICO GRATING APPLICATION GUIDE

50 100 150 200 250 300 350 400 450 500Grating

Style

6.25#CARBON STEEL

7.0#CARBON STEEL

2.0#ALUMINUM

Load in Pounds_____________________________________________________________ Deflection in Inches

c

u

Clea

rSp

an

Load

Cond

.

c

u

c

u

24" .015 .030 .045 .060 .075 .090 .105 .120 .135 .15030" .035 .069 .103 .137 .171 .206 .240 .274 .308 .34236" .054 .108 .161 .216 .269 .324 .377 .431 .484 .53742" .084 .166 .247 .329 .412 .492 .67548" .117 .236 .355 .474 .59354" .167 .336 .506 .67060" .225 .452 .68372" .456 .91224" .017 .035 .054 .072 .090 .110 .127 .145 .164 .18130" .045 .091 .135 .180 .226 .270 .316 .360 .405 .45036" .092 .184 .276 .368 .460 .55242" .150 .302 .451 .60248" .285 .57654" .45760" .60630" .030 .061 .090 .121 .152 .182 .212 .242 .273 .30336" .051 .101 .151 .201 .251 .301 .351 .401 .451 .50142" .065 .130 .195 .259 .323 .389 .452 .515 .58048" .095 .190 .282 .376 .470 .56554" .143 .283 .423 .56460" .203 .405 .61072" .355 .70830" .039 .079 .118 .157 .196 .236 .274 .314 .353 .39236" .085 .170 .252 .336 .420 .504 .58742" .126 .255 .385 .512 .64248" .210 .420 .62854" .365 .73160" .55572" 1.08018" .019 .039 .059 .079 .099 .119 .139 .15924" .046 .092 .138 .184 .230 .27730" .092 .181 .269 .36036" .125 .255 .385 .46518" .017 .034 .051 .068 .085 .103 .121 .139 .15724" .047 .094 .141 .189 .236 .28330" .108 .216 .32236" .213 .430

CONCENTRATED LOAD: A load that is concentrated over a small area. Example, apedestrian load, or light equipment load. Concentrated loads are shown in lbs per ft.of grating width measured perpendicular to span. (ie, in SWD Direction)

UNIFORM LOAD: A load that is equally distributed over all of the clear span. Measuredin lbs per sq. ft. (i.e., inventories stacked on shelving.)

DEFLECTION: The deviation in inches from the original plane when the grating isplaced under a load.

CLEAR SPAN: The distance between supporting members measured from the insidebearing point of one supporting member to the inside bearing point of the next sup-porting member.

LOAD & DEFLECTION TABLE

34751 AMICO 1-12.q 10/17/00 7:21 AM Page 9

Expanded Metal & Expanded Metal Grating

10

Specify the size sheet required, listing SWD first. Example: 4'0" SWD x 8'0" LWD

Specify the number of sheets or pieces required.

Specify the nominal width of the diamond SWD Example: 3/16", 1/4", 1/2", 3/4", 1", 1 1/2", 2"

Specify the style of the sheet Example: #18, #20, #16, #13, #9

Specify R (Regular), F (Flattened)

Specify the type of metal required Example: Carbon steel, Stainless steel, Aluminum, etc.

EXAMPLE OF TYPICAL ORDER:100 SHEETS...3/4"...#9F4'-0" X 8'-0" CARBON STEEL

Specify the size sheet required, listing SWD first.Example: Expanded Metal Grating 4' x 8', 4' x 10', 6' x 8', 6' x 10'

Specify the number of sheets or pieces required.

Specify Wt./Sq. Ft. requiredExample: 2.0 lb., 3.0 lb., 3.14 lb., 4.0 lb., 4.27 lb., 5.0 lb., 6.25 lb., 7.0 lb.

EXAMPLE TYPICAL ORDEREXPANDED METAL LONG LENGTH GRATING10' X 2'0" - 10' X 2'6" - 10' X 3'0"

4'0" SWD

8'0"

LW

D8'

0" L

WD

EXPANDED METAL GRATING

LONG LENGTH EXPANDED METAL GRATING

2'0"

LW

D

SPAN

4'0" SWD

10'0" SWD

HOW TO ORDER EXPANDED METAL

HOW TO ORDER EXPANDED METAL GRATING OR LONG LENGTH GRATING

34751 AMICO 1-12.q 10/17/00 7:21 AM Page 10

11


6 x 8

MESH SIZE 4 x 10 SIZE

1/4" # 20 R&F 4 x 8

1/4" # 18 R&F 4 x 8 6 x 8

4 x 10

1/2" # 20 R&F 4 x 8 6 x 10 6 x 10

1/2" # 18 R&F 4 x 8 6 x 10

1/2" # 16 R&F 4 x 8 6 x 8 6 x 8

1/2" # 16 R&F 6 x 8 4 x 10 6 x 10

1/2" # 16 R&F 4 x 10 6 x 10 6 x 8

4 x 8 6 x 10

3/4" # 16 R&F 4 x 8 6 x 8 6 x 8

3/4" # 16 R&F 4 x 10 4 x 10 6 x 10

3/4" # 16 R&F 6 x 8 6 x 10 6 x 8

3/4" # 14 F 4 x 8 4 x 10

3/4" # 13 R&F 4 x 8 6 x 10 6 x 10

3/4" # 13 R&F 6 x 8 4 x 8 4 x 8

3/4" # 13 R&F 4 x 10 6 x 8 6 x 8

3/4" # 10 R 4 x 8 4 x 10 4 x 10

6 x 10 6 x 10

1" # 16 R&F 4 x 8

1 1/2" # 16 R&F 4 x 8 SIZE SIZE

1 1/2" # 13 R&F 4 x 8 4 x 8 4 x 8

1 1/2" # 13 R&F 6 x 8

1 1/2" # 13 R&F 4 x 10 4 x 8

1 1/2" # 13 R&F 6 x 10 4 x 10 SIZE

1 1/2" # 10 R 4 x 8 4 x 8 6 x 8

1 1/2" # 10 R 6 x 8 4 x 10 4 x 10

1 1/2" # 10 R 4 x 10 4 x 8 6 x 10

4 x 10 4 x 8

4 x 8

MESH SIZE 4 x 10

1/2" # 16 R&F 6 x 10 4 x 8 4 x 8

1/2" # 13 R&F 4 x 8 6 x 8

30 PCS. PER PALLET

1.59 lb. Ornamesh

1.59 lb. Ornamesh

6.25 lb. Grating

6.25 lb. Grating

6.25 lb. Grating

7.0 lb. Grating

15 PCS. PER PALLET

MESH

5.0 lb Grating

5.0 lb Grating

5.0 lb Grating

20 PCS. PER PALLET

MESH

6.25 lb. Grating

4.27 lb Grating

4.27 lb Grating

4.27 lb Grating

5.0 lb Grating

3.14 lb Grating

3.14 lb Grating

4.0 lb Grating

4.0 lb Grating

1 1/2" # 6 R

1 1/2" # 6 R

3.0 lb. Grating

3.0 lb. Grating

MESH

25 PCS. PER PALLET

1 1/2" # 6 R

4.27 lb. Grating

2.0 lb. Grating

3.0 lb. Grating

3.14 lb. Grating

4.0 lb. Grating

3.14 lb. Grating

4.0 lb. Grating

2.0 lb. Grating

3.0 lb. Grating

MESH

1 1/2" # 6 R

30 PCS. PER PALLET

1 1/2" # 9 R&F

1 1/2" # 9 R&F

1 1/2" # 9 R&F

1 1/2" # 9 R&F

3/4" # 10 R

3/4" # 9 R&F

3/4" # 9 R&F

3/4" # 9 R&F

100 PCS. PER PALLET

50 PCS. PER PALLET

1/2" # 13 R&F

1/2" # 13 R&F

3/4" # 16 R&F

3/4" # 13 R&F

3/4" # 10 R

1 1/2" # 10 R

3/4" # 9 R&F

3/4" # 10 R

STANDARD PALLETS

R(Regular) F(Flattened)

34751 AMICO 1-12.q 10/17/00 7:21 AM Page 11

12

NOMENCLATURE

C.S.F(hundred square feet) the unit of measure for price andweight.

DIAMOND OR OPENINGThis is the description of the open areaformed by strands and bonds. Normally the open area is diamondshaped.

BONDThe point where adjacent strands intersect. The bond isalways twice the width of the strand.

SWD OR SWOShort way of diamond or short way of opening isthe dimension measured across the sheet in a direction parallel tothe smallest dimension of the diamond.

LWD OR LWOLong way of diamond or long way of opening is thedimension measured across the sheet in a direction parallel to thelargest dimension of the diamond.

MESHThis is the nominal distance from the mid-point of onebond to the mid-point of the next bond measured across the SWD.Mesh is expressed in inches.

OPENING SIZEThe area enclosed by bonds and strands.

OVERALL THICKNESSThis is the finished thickness and oftendetermines the selection of framing members.

PERCENT OF OPEN AREAThese important relative percentagesare used by designers to calculate the degree with which light andair can pass through a piece of expanded metal.

PITCHThe measurement from a point on one diamond to thesame point on an adjacent diamond.

STRANDThe single metal strip which forms the border of thediamond, or opening. Strand width is the amount of materialadvanced for expanding as differentiated from strand thicknesswhich is the thickness of metal from which the expanded metal isproduced.

STYLEIs the guage or thickness of metal from which expandedmetal is made. Usually, but not always, this conforms tomanufacturers standard guages. Style is expressed by a number.Expanded metal grating style is expressed in lbs. per square foot.

FORMABILITYEach piece should be able to withstand a 90degree bend with a 1/4 in. inside radius in either direction, withoutfracture.

LEVELINGAll expanded metal products except grating are leveledafter having been expanded.

OUT OF SQUAREExpanded metal sheets are generally notperfectly square when finished. Sheets must be resquared byshearing on all sides for perfect squareness.

Reshearing at the mill is not usually done since most sheets aresheared to size to be within tolerance.

CAMBERBow in sheet. It is measured by placing a straight edgealong the concave side of the sheet parallel to LWD, touching bothends of the sheet. The maximum distance between the edge of theexpanded metal and the straight edge is the camber. A sheet maybe within a width tolerance and still have camber.

PRODUCT DEFINITION

REGULAR EXPANDED METAL is sheet simultaneously slit andstretched into a rigid, non-raveling open mesh. It is readilyavailable in carbon steel, aluminum and stainless steel.

FLATTENED EXPANDED METAL is manufactured by processingregular expanded metal in a rolling mill. This rolling reduces thethickness of the sheet and provides a smooth flat sheet.

EXPANDED METAL GRATING is produced from heavier plate,usually low-carbon steel, with larger diamonds. It is typically usedfor walkways and platforms.

DECORATIVE EXPANDED METAL is manufactured with uniqueshaped openings which possess great appeal for architects anddesigners.

STAIR TREADSExpanded Metal Grating Stair Treads arefabricated using 4.0# Grating, angles and bars. They are shippedready for installation on the job.

FINISHINGLimited finishes can be accomplished atmanufacturing plants. This includes hot-dip galvanizing and pre-galvanizing.

Special finishing such as anodizing, enameling, and plastic coatingcan be arranged by contacting your steel service center.

SHEET SIZEWhile expanded metal can be manufactured in manyvarying sheet sizes, practical limitations are such that it is wise toselect sheet sizes shown in the catalog. Availability of sizes can bedetermined by contacting your steel service center.

DISTRIBUTIONexpanded metal products are readily availablefrom large stocks maintained by your local steel service center.

PRODUCT SELECTION

The first step in the design of a product or fabricated assemblyincorporating expanded metal is to select the appropriateexpanded metal pattern, keeping in mind various productcharacteristics.

The strength and rigidity of expanded metal material is determinedby Long Way of Design. On a walkway, for example, the LWDshould run perpendicular to the walkway support.

Diamond direction also affects air deflection and diffusion,concealment properties and aesthetic appearance. Consult yoursupplier for suggestions.

Most manufacturers can and do routinely furnish expanded metalin special (non-standard) sheet sizes when requested. In thisevent, it is important for the specifier to give some considerationto the edge configuration of the sheet as it relates to anyparticular requirement since the cost may be affected by themanufacturing operations necessary to shear the edge desired.


34751 AMICO 1-12.q 10/17/00 7:21 AM Page 12

Bar GratingWelded Steel Grating(pages 1435)

Standard Welded: AMICOs welded grating isused universally for walkway and mezzaninedecking applications. It is ideal for most generalindustrial and commercial uses. Standard weldedgrating is generally considered to include gratingwith bearing bars spaced at 1-3/16" or 15/16"and is available in carbon or stainless steel.

Close-Mesh: Close-mesh grating is similar tostandard grating except that the spacing of thebearing bars is closer, ranging from 7/16" to13/16". It is suitable for applications requiringnarrow spacing for aesthetic or functional rea-sons. It is available in carbon or stainless steel.

Railroad: Welded grating with spacings of 1-9/16"and 1-11/16" meet the requirements for AARapproved safety walkway products. This gratingis designed specifically for use as railcar brakesteps, running boards, walkways and platforms.

Heavy-Duty: Heavy-Duty uses thicker (1/4",5/16", 3/8") and deeper bearing bars. Althoughthe tables show bars as deep as 6", deepergrating can be custom fabricated on request.Heavy-Duty is used for airfields, highways,industrial floors, ramps, docks, reinforcedconcrete areas and specialty applications.

Press-Locked Steel and Aluminum Grating(pages 1521 / steel and pages 4147 / aluminum)

Because this grating is a system of interlocking,perpendicular bars, it provides a smooth cleanlook ideal for architectural applications such asgrilles, dividers and screens. It is used in thesame structural applications as its welded steel

and rectangular aluminum counterparts. Materi-als include carbon steel, stainless steel or alu-minum. Spacings range from 7/16" to 1-3/16".

Swage-Locked Aluminum Grating(pages 37-40)

Swage-locked aluminum grating is manufacturedwith either an I or rectangular bearing bar.These bars are permanently locked to the crossrods with a swaging process which reshapes the rods. Because of the flange width, I-barsreduce the open spaces of the grating yet I-barswage-locked is lighter weight and less costlythan a rectangular bar grating with the same barthickness.

Duo-Grip Aluminum Planks(page 48)

Duo-Grip planking is a one piece extrudedplank with exceptional strength and stiffness-to-weight ratio due to its I-beam ribs. It is availablein either unpunched, square punched or rectan-gular punched styles to suit lighting and ventila-tion considerations. The design provides con-tinuous walking surface for additional safety.

Riveted Steel and Aluminum Grating(pages 5051 / steel and pages 5253 / aluminum)

Riveted grating is especially practical for areaswhere rolling loads are used because of itssmoother surface. It is available in bothaluminum and steel.

Riv-Dexteel(pages 5455)

Riv-Dexteel is a high strength grating whichincorporates a truss style design through the useof a reticulated riveted bar in conjunction with astraight bearing bar. It has been used for nearly75 years as bridge decking, curb inlet grates,industrial flooring, driveways across culverts andheavy traffic areas.

Material SelectionCarbon Steel: Carbon steel provides aneconomical, high strength grating for use in most industrial and commercial applications.

Aluminum: Lightweight, corrosion resistant andnon-sparking alloys make aluminum ideal for usein chemical, petroleum, hydro and food process-ing plants, sewage, water and waste treatmentfacilities; munitions plants and other volatileareas; aboard ship; etc.

Stainless Steel: Stainless steel is ideal for use incaustic atmospheres where corrosion resistanceand minimum carbide precipitation are importantconsiderations. It is especially applicable forchemical, food and hydro processing areas.

13

34751 AMICO 13-69 10/18/2000 2:30 PM Page 13

14

Steel Bar GratingWelded Steel Bar Grating is the most popular of all grating types due toits strength, cost-efficient production and ease of installation. Universallyused in most general industrial plants as well as commercial buildings, ithas wide applications as walkways, platforms, safety barriers, drainagecovers and ventilation grates.

It is also ideal for use as mezzanine decking since it supports thesame loads as comparable solid flooring. More than that, its cost savingopenness maximizes the circulation of air, light, heat, water and sound,while promoting cleanliness. And, where insurance codes permit, addi-tional sprinklers can often be eliminated. Standard panels are available inwidths of 2', 3' or 4'.

Welded steel bar grating is resistance welded to create a rugged, one-piece constructed panel. The bearing bars are automatically resistancewelded at the contact point with the cross bars and, under a combinationof high heat and pressure, are fused together to form a permanent joint.The cross bars provide a high degree of rigidity, yet retain a smooth flatsurface for free and easy walking.

Press-Locked Steel Bar Grating is often desirable because of itsclean, smooth look and excellent lateral support. It exhibits the samestrength, long life and openness as welded grating, although it is notrecommended for rolling loads. Instead of welding the joints, however,tremendous hydraulic pressure is used to bond the two close-toleranceslotted bars together. Permanent locking is achieved by forcing the deepcross bar into the notched bearing bar.

Further fabrication or galvanizing is not recommended after thematerial leaves AMICO.

Steel Welded Railroad Grating, in 1-9/16" and 1-11/16" spacings, isAAR (Association of American Railroads) approved and specified forbrake steps, running boards, walkways and platforms for railroad cars.Designed and engineered specifically for railroad use, AMICO-Klemp

railroad grating is used by both new car and car repair facilities since it isinterchangeable with other AAR approved gratings. The serrated bearingbars provide additional safety and the openness of bar grating minimizesbuild up of snow, ice and other debris.

19-W-4 19-W-2

15-W-4 15-W-2

13-W-4 13-W-2

11-W-4 11-W-2

8-W-4 8-W-2

10-W-4 10-W-2

25-W-4 27-W-4

19-P-4 19-P-2

15-P-4 15-P-2

7-P-2

13-P-4 13-P-2

11-P-4 11-P-2

10-P-4 10-P-2

8-P-4 8-P-2

7-P-4

PRESS-LOCKED STEEL BAR GRATINGSTEEL WELDED RAILROAD GRATING (AAR APPROVED)WELDED STEEL BAR GRATING

34751 AMICO 13-69 10/18/2000 2:31 PM Page 14

15

355 227 158 116 89 700.099 0.155 0.223 0.304 0.397 0.503

355 284 237 203 178 1580.079 0.124 0.179 0.243 0.318 0.402

533 341 237 174 133 1050.099 0.155 0.223 0.304 0.397 0.503

533 426 355 305 266 2370.079 0.124 0.179 0.243 0.318 0.402

632 404 281 206 158 125 101 840.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563

632 505 421 361 316 281 253 2300.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451

947 606 421 309 237 187 152 1250.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563

947 758 632 541 474 421 379 3440.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451

987 632 439 322 247 195 158 130 110 93 810.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.730

987 789 658 564 493 439 395 359 329 304 2820.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.5841480 947 658 483 370 292 237 196 164 140 121

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.7301480 1184 987 846 740 658 592 538 493 455 423

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.5841421 909 632 464 355 281 227 188 158 135 116 89 70

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0061421 1137 947 812 711 632 568 517 474 437 406 355 316

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8042132 1364 947 696 533 421 341 282 237 202 174 133 105

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0062132 1705 1421 1218 1066 947 853 775 711 656 609 533 474

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8042901 1857 1289 947 725 573 464 384 322 275 237 181 143

0.043 0.067 0.096 0.130 0.170 0.215 0.266 0.322 0.383 0.450 0.521 0.681 0.8622901 2321 1934 1658 1451 1289 1161 1055 967 893 829 725 645

0.034 0.053 0.077 0.104 0.136 0.172 0.213 0.257 0.306 0.360 0.417 0.545 0.6893789 2425 1684 1237 947 749 606 501 421 359 309 237 187

0.037 0.058 0.084 0.114 0.149 0.189 0.233 0.282 0.335 0.393 0.456 0.596 0.7543789 3032 2526 2165 1895 1684 1516 1378 1263 1166 1083 947 842

0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.6034796 3069 2132 1566 1199 947 767 634 533 454 392 300 237

0.033 0.052 0.074 0.101 0.132 0.168 0.207 0.250 0.298 0.350 0.406 0.530 0.6704796 3837 3197 2741 2398 2132 1918 1744 1599 1476 1370 1199 1066

0.026 0.041 0.060 0.081 0.106 0.134 0.166 0.200 0.238 0.280 0.324 0.424 0.5365921 3789 2632 1933 1480 1170 947 783 658 561 483 370 292

0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.6035921 4737 3947 3383 2961 2632 2368 2153 1974 1822 1692 1480 1316

0.024 0.037 0.054 0.073 0.095 0.121 0.149 0.180 0.215 0.252 0.292 0.381 0.483

19-4-32

19-2-32

19-4-33

19-2-33

19-4-42

19-2-42

19-4-43

19-2-43

19-4-52

19-2-52

19-4-53

19-2-53

19-4-62

19-2-62

19-4-63

19-2-63

19-4-73

19-2-73

19-4-83

19-2-83

19-4-93

19-2-93

19-4-103

19-2-103

2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6"

8'-0" 9'-0"

6'-0" 6'-6" 7'-0"

5'-0" 5'-6"

Approx. Sec. ModBar Symbol Weight Per Ft.Size psf Of Width

3/4" x 1/8"

3/4" x 3/16"

1" x 1/8"

1" x 3/16"

1-1/4" x 1/8"

1-1/4" x 3/16"

1-1/2" x 1/8"

1-1/2" x 3/16"

1-3/4" x 3/16"

2" x 3/16"

2-1/4" x 3/16"

2-1/2" x 3/16"

0.118

0.178

0.211

0.316

0.329

0.493

0.474

0.711

0.967

1.263

1.599

1.974

SPAN (Length of Bearing Bar)LOAD & DEFLECTION TABLE

UDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCDUDCD

U = safe uniform load, psfC = safe concentrated load, pfwD = deflection, inchesE = modulus of elasticity, 29,000,000 psiF = fiber stress, 18,000 psiMaterial: ASTM A-569 standardDeflection: Spans and loads to the right ofthe bold line exceed 1/4" deflection for uni-form load of 100 psf which provides safepedestrian comfort. These can be exceededfor other types of loads with engineersapproval.Serrated Bars: For serrated grating, the depthof grating required for a specified load is 1/4"deeper than that shown in the table.

General: Loads and deflec-tions are theoretical andbased on static loading.

W/P-19 PANEL WIDTH (inches)No. of Bars 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16

1/8" Bar

3/16" Bar15/16 21/2 311/16 47/8 61/16 71/4 87/16 95/8 1013/16 12 133/16 143/8 159/16 163/4 1715/16

13/8 29/16 33/4 415/16 61/8 75/16 81/2 911/16 107/8 121/16 131/4 147/16 155/8 1613/16 18

1/8" Bar

3/16" Bar191/8 205/16 211/2 2211/16 237/8 251/16 261/4 277/16 285/8 2913/16 31 323/16 333/8 349/16 353/4

193/16 203/8 219/16 223/4 2315/16 251/8 265/16 271/2 2811/16 297/8 311/16 321/4 337/16 345/8 3513/16

No. of Bars 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31

WPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPPP

3.94.34.45.25.66.46.27.85.05.45.56.37.28.17.89.56.16.86.68.18.9

10.29.5

12.17.27.97.79.2

10.511.811.213.812.213.512.815.413.915.214.517.115.516.816.118.717.218.517.820.4

19-W-4Cross Rods 4" C/C


19-P-2Cross Bars 2" C/C


Steel Bar Grating

Note: P-Press-Locked cross bars typically extend 1/8" each side. W-Welded cross rodsmay extend 1/8" each side. Panel widths do not include these extensions.

WELDED1-3/16" Center to Center of Bearing Bars

PRESS-LOCKED1-3/16" Center to Center of Bearing Bars

34751 AMICO 13-69 10/18/2000 2:31 PM Page 15

16

450 288 200 147 113 890.099 0.155 0.223 0.304 0.397 0.503

450 360 300 257 225 2000.079 0.124 0.179 0.243 0.318 0.402

675 432 300 220 169 133 1080.099 0.155 0.223 0.304 0.397 0.503 0.621

675 540 450 386 338 300 2700.079 0.124 0.179 0.243 0.318 0.402 0.497

800 512 356 261 200 158 128 106 890.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.670

800 640 533 457 400 356 320 291 2670.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.5361200 768 533 392 300 237 192 159 133

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.6701200 960 800 686 600 533 480 436 400

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.5361250 800 556 408 313 247 200 165 139 118 102

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.7301250 1000 833 714 625 556 500 455 417 385 357

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.5841875 1200 833 612 469 370 300 248 208 178 153

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.7301875 1500 1250 1071 938 833 750 682 625 577 536

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.5841800 1152 800 588 450 356 288 238 200 170 147 113 89

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0061800 1440 1200 1029 900 800 720 655 600 554 514 450 400

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8042700 1728 1200 882 675 533 432 357 300 256 220 169 133

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0062700 2160 1800 1543 1350 1200 1080 982 900 831 771 675 600

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8043675 2352 1633 1200 919 726 588 486 408 348 300 230 181

0.043 0.067 0.096 0.130 0.170 0.215 0.266 0.322 0.383 0.450 0.521 0.681 0.8623675 2940 2450 2100 1838 1633 1470 1336 1225 1131 1050 919 817

0.034 0.053 0.077 0.104 0.136 0.172 0.213 0.257 0.306 0.360 0.417 0.545 0.6894800 3072 2133 1567 1200 948 768 635 533 454 392 300 237

0.037 0.058 0.084 0.114 0.149 0.189 0.233 0.282 0.335 0.393 0.456 0.596 0.7544800 3840 3200 2743 2400 2133 1920 1745 1600 1477 1371 1200 1067

0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.6036075 3888 2700 1984 1519 1200 972 803 675 575 496 380 300

0.033 0.052 0.074 0.101 0.132 0.168 0.207 0.250 0.298 0.350 0.406 0.530 0.6706075 4860 4050 3471 3038 2700 2430 2209 2025 1869 1736 1519 1350

0.026 0.041 0.060 0.081 0.106 0.134 0.166 0.200 0.238 0.280 0.324 0.424 0.5367500 4800 3333 2449 1875 1481 1200 992 833 710 612 469 370

0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.6037500 6000 5000 4286 3750 3333 3000 2727 2500 2308 2143 1875 1667

0.024 0.037 0.054 0.073 0.095 0.121 0.149 0.180 0.215 0.252 0.292 0.381 0.483

15-4-32

15-2-32

15-4-33

15-2-33

15-4-42

15-2-42

15-4-43

15-2-43

15-4-52

15-2-52

15-4-53

15-2-53

15-4-62

15-2-62

15-4-63

15-2-63

15-4-73

15-2-73

15-4-83

15-2-83

15-4-93

15-2-93

15-4-103

15-2-103

2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6"

8'-0" 9'-0"

6'-6" 7'-0"

5'-6" 6'-0"

5'-0"


3/4" x 1/8"

3/4" x 3/16"

1" x 1/8"

1" x 3/16"

1-1/4" x 1/8"

1-1/4" x 3/16"

1-1/2" x 1/8"

1-1/2" x 3/16"

1-3/4" x 3/16"

2" x 3/16"

2-1/4" x 3/16"

2-1/2" x 3/16"

0.150

0.225

0.267

0.400

0.417

0.625

0.600

0.900

1.225

1.600

2.025

2.500





WPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWPWP

4.75.15.36.16.97.77.59.16.16.56.77.58.99.89.6

11.27.58.28.19.5

11.012.311.614.28.99.69.4

10.913.114.413.716.315.216.515.818.417.318.617.920.519.420.720.022.621.422.722.024.7





Steel Bar Grating

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20

11/16 2 215/16 37/8 413/16 53/4 611/16 75/8 89/16 91/2 107/16 113/8 125/16 131/4 143/16 151/8 161/16 17 1715/16

11/8 21/16 3 315/16 47/8 513/16 63/4 711/16 85/8 99/16 101/2 117/16 123/8 135/16 141/4 153/16 161/8 171/16 18

187/8 1913/16 203/4 2111/16 225/8 239/16 241/2 257/16 263/8 275/16 281/4 293/16 301/8 311/16 32 3215/16 337/8 3413/16 353/4

1815/16 197/8 2013/16 213/4 2211/16 235/8 249/16 251/2 267/16 273/8 285/16 291/4 303/16 311/8 321/16 33 3315/16 347/8 3513/16

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

W/P-15 PANEL WIDTH (inches) Note: P-Press Locked cross bars typically extend 1/8" each side. W-Welded cross rods may extend 1/8" each side. Panel widths do not include these extensions.No. of Bars

1/8" Bar

3/16" Bar

1/8" Bar

3/16" Bar

No. of Bars

WELDED15/16" Center to Center of Bearing Bars

PRESS-LOCKED15/16" Center to Center of Bearing Bars

34751 AMICO 13-69 10/18/2000 2:31 PM Page 16

17

519 332 231 170 130 1030.099 0.155 0.223 0.304 0.397 0.503

519 415 346 297 260 2310.079 0.124 0.179 0.243 0.318 0.402

779 498 346 254 195 154 1250.099 0.155 0.223 0.304 0.397 0.503 0.621

779 623 519 445 389 346 3120.079 0.124 0.179 0.243 0.318 0.402 0.497

923 591 410 301 231 182 148 122 1030.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.670

923 738 615 527 462 410 369 336 3080.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.5361385 886 615 452 346 274 222 183 154

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.6701385 1108 923 791 692 615 554 503 462

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.5361442 923 641 471 361 285 231 191 160 137 118

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.7301442 1154 962 824 721 641 577 524 481 444 412

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.5842163 1385 962 706 541 427 346 286 240 205 177

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.7302163 1731 1442 1236 1082 962 865 787 721 666 618

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.5842077 1329 923 678 519 410 332 275 231 197 170 130 103

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0062077 1662 1385 1187 1038 923 831 755 692 639 593 519 462

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8043115 1994 1385 1017 779 615 498 412 346 295 254 195 154

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0063115 2492 2077 1780 1558 1385 1246 1133 1038 959 890 779 692

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8044240 2714 1885 1385 1060 838 678 561 471 401 346 265 209

0.043 0.067 0.096 0.130 0.170 0.215 0.266 0.322 0.383 0.450 0.521 0.681 0.8624240 3392 2827 2423 2120 1885 1696 1542 1413 1305 1212 1060 942

0.034 0.053 0.077 0.104 0.136 0.172 0.213 0.257 0.306 0.360 0.417 0.545 0.6895538 3545 2462 1808 1385 1094 886 732 615 524 452 346 274

0.037 0.058 0.084 0.114 0.149 0.189 0.233 0.282 0.335 0.393 0.456 0.596 0.7545538 4431 3692 3165 2769 2462 2215 2014 1846 1704 1582 1385 1231

0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.6037010 4486 3115 2289 1752 1385 1122 927 779 664 572 438 346

0.033 0.052 0.074 0.101 0.132 0.168 0.207 0.250 0.298 0.350 0.406 0.530 0.6707010 5608 4673 4005 3505 3115 2804 2549 2337 2157 2003 1752 1558

0.026 0.041 0.060 0.081 0.106 0.134 0.166 0.200 0.238 0.280 0.324 0.424 0.5368654 5538 3846 2826 2163 1709 1385 1144 962 819 706 541 427

0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.6038654 6923 5769 4945 4327 3846 3462 3147 2885 2663 2473 2163 1923

0.024 0.037 0.054 0.073 0.095 0.121 0.149 0.180 0.215 0.252 0.292 0.381 0.483

13-4-32

13-2-32

13-4-33

13-2-33

13-4-42

13-2-42

13-4-43

13-2-43

13-4-52

13-2-52

13-4-53

13-2-53

13-4-62

13-2-62

13-4-63

13-2-63

13-4-73

13-2-73

13-4-83

13-2-83

13-4-93

13-2-93

13-4-103

13-2-103

2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6"

8'-0" 9'-0"

6'-6" 7'-0"

5'-6" 6'-0"

5'-0"


3/4" x 1/8"

3/4" x 3/16"

1" x 1/8"

1" x 3/16"

1-1/4" x 1/8"

1-1/4" x 3/16"

1-1/2" x 1/8"

1-1/2" x 3/16"

1-3/4" x 3/16"

2" x 3/16"

2-1/4" x 3/16"

2-1/2" x 3/16"

0.173

0.260

0.308

0.462

0.481

0.721

0.692

1.038

1.413

1.846

2.337

2.885









Steel Bar Grating


5.35.85.96.77.88.68.4

10.16.97.47.58.3

10.211.010.812.48.59.39.1

10.512.613.913.215.810.110.910.712.115.016.315.618.217.418.718.020.619.821.120.423.022.223.522.825.424.625.925.227.8

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2015/16 13/4 29/16 33/8 43/16 5 513/16 65/8 77/16 81/4 91/16 97/8 1011/16 111/2 125/16 131/8 1315/16 143/4 159/16

1 113/16 25/8 37/16 41/4 51/16 57/8 611/16 71/2 85/16 91/8 915/16 103/4 119/16 123/8 133/16 14 1413/16 155/8

163/8 173/16 18 1813/16 195/8 207/16 211/4 221/16 227/8 2311/16 241/2 255/16 261/8 2615/16 273/4 289/16 293/8 303/16 31

167/16 171/4 181/16 187/8 1911/16 201/2 215/16 221/8 2215/16 233/4 249/16 253/8 263/16 27 2713/16 285/8 297/16 301/4 311/16

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

3113/16 325/8 337/16 341/4 351/16 357/8

317/8 3211/16 331/2 345/16 351/8 3515/16

40 41 42 43 44 45

W/P-13 PANEL WIDTH (inches) Note: P-Press-Locked cross bars typically extend 1/8" each side. W-Welded cross rods may extend 1/8" each side. Panel widths do not include these extensions.No. of Bars

1/8" Bar

3/16" Bar

1/8" Bar

3/16" Bar

No. of Bars

1/8" Bar

3/16" Bar

No. of Bars

WELDED CLOSE-MESH13/16" Center to Center of Bearing Bars

PRESS-LOCKED CLOSE-MESH13/16" Center to Center of Bearing Bars

34751 AMICO 13-69 10/18/2000 2:31 PM Page 17

18

614 393 273 200 153 121 980.099 0.155 0.223 0.304 0.397 0.503 0.621

614 491 409 351 307 273 2450.079 0.124 0.179 0.243 0.318 0.402 0.497

920 589 409 301 230 182 1470.099 0.155 0.223 0.304 0.397 0.503 0.621

920 736 614 526 460 409 3680.079 0.124 0.179 0.243 0.318 0.402 0.4971091 698 485 356 273 215 175 144 121

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.6701091 873 727 623 545 485 436 397 364

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.5361636 1047 727 534 409 323 262 216 182 155

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.670 0.7871636 1309 1091 935 818 727 655 595 545 503

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.6291705 1091 758 557 426 337 273 225 189 161 139

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.7301705 1364 1136 974 852 758 682 620 568 524 487

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.5842557 1636 1136 835 639 505 409 338 284 242 209 160

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.730 0.9532557 2045 1705 1461 1278 1136 1023 930 852 787 731 639

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.584 0.7632455 1571 1091 801 614 485 393 325 273 232 200 153 121

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0062455 1964 1636 1403 1227 1091 982 893 818 755 701 614 545

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8043682 2356 1636 1202 920 727 589 487 409 349 301 230 182

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0063682 2945 2455 2104 1841 1636 1473 1339 1227 1133 1052 920 818

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8045011 3207 2227 1636 1253 990 802 663 557 474 409 313 247

0.043 0.067 0.096 0.130 0.170 0.215 0.266 0.322 0.383 0.450 0.521 0.681 0.8625011 4009 3341 2864 2506 2227 2005 1822 1670 1542 1432 1253 1114

0.034 0.053 0.077 0.104 0.136 0.172 0.213 0.257 0.306 0.360 0.417 0.545 0.6896545 4189 2909 2137 1636 1293 1047 866 727 620 534 409 323

0.037 0.058 0.084 0.114 0.149 0.189 0.233 0.282 0.335 0.393 0.456 0.596 0.7546545 5236 4364 3740 3273 2909 2618 2380 2182 2014 1870 1636 1455

0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.6038284 5302 3682 2705 2071 1636 1325 1095 920 784 676 518 409

0.033 0.052 0.074 0.101 0.132 0.168 0.207 0.250 0.298 0.350 0.406 0.530 0.6708284 6627 5523 4734 4142 3682 3314 3012 2761 2549 2367 2071 1841

0.026 0.041 0.060 0.081 0.106 0.134 0.166 0.200 0.238 0.280 0.324 0.424 0.53610227 6545 4545 3340 2557 2020 1636 1352 1136 968 835 639 5050.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.60310227 8182 6818 5844 5114 4545 4091 3719 3409 3147 2922 2557 22730.024 0.037 0.054 0.073 0.095 0.121 0.149 0.180 0.215 0.252 0.292 0.381 0.483

11-4-32

11-2-32

11-4-33

11-2-33

11-4-42

11-2-42

11-4-43

11-2-43

11-4-52

11-2-52

11-4-53

11-2-53

11-4-62

11-2-62

11-4-63

11-2-63

11-4-73

11-2-73

11-4-83

11-2-83

11-4-93

11-2-93

11-4-103

11-2-103

2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0"

7'-0"

8'-0"

9'-0"

6'-6"

5'-6" 6'-0"


3/4" x 1/8"

3/4" x 3/16"

1" x 1/8"

1" x 3/16"

1-1/4" x 1/8"

1-1/4" x 3/16"

1-1/2" x 1/8"

1-1/2" x 3/16"

1-3/4" x 3/16"

2" x 3/16"

2-1/4" x 3/16"

2-1/2" x 3/16"

0.205

0.307

0.364

0.545

0.568

0.852

0.818

1.227

1.670

2.182

2.761

3.409



U = safe uniform load, psfC = safe concentrated load, pfwD = deflection, inchesE = modulus of elasticity, 29,000,000 psiF = fiber stress, 18,000 psiMaterial: ASTM A-569 standardDeflection: Spans and loads to the right ofthe bold line exceed 1/4" deflection for uni-form load of 100 psf which provides safepedestrian comfort. These can be exceededfor other types of loads with engineers

approval.Serrated Bars: For serrated grating,the depth of grating required for aspecified load is 1/4" deeper than that

shown in the table.General: Loads and deflec-tions are theoretical andbased on static loading.


6.26.66.87.69.19.99.7

11.38.18.58.69.4

11.912.712.514.210.010.710.512.014.716.015.317.911.912.612.413.917.518.818.120.720.421.721.023.623.224.523.826.426.027.326.629.228.830.129.432.0





Steel Bar Grating

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 2013/16 11/2 23/16 27/8 39/16 41/4 415/16 55/8 65/16 7 711/16 83/8 91/16 93/4 107/16 111/8 1113/16 121/2 133/16

7/8 19/16 21/4 215/16 35/8 45/16 5 511/16 63/8 71/16 73/4 87/16 91/8 913/16 101/2 113/16 117/8 129/16 131/4

137/8 149/16 151/4 1515/16 165/8 175/16 18 1811/16 193/8 201/16 203/4 217/16 221/8 2213/16 231/2 243/16 247/8 259/16 261/4

1315/16 145/8 155/16 16 1611/16 173/8 181/16 183/4 197/16 201/8 2013/16 211/2 223/16 227/8 239/16 241/4 2415/16 255/8 265/16

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

2615/16 275/8 285/16 29 2911/16 303/8 311/16 313/4 327/16 331/8 3313/16 341/2 353/16 357/8

27 2711/16 283/8 291/16 293/4 307/16 311/8 3113/16 321/2 333/16 337/8 349/16 351/4 3515/16

40 41 42 43 44 45 46 47 48 49 50 51 52 53


1/8" Bar

3/16" Bar

1/8" Bar

3/16" Bar

No. of Bars

1/8" Bar

3/16" Bar

No. of Bars



34751 AMICO 13-69 10/18/2000 2:31 PM Page 18

19

675 432 300 220 169 133 1080.099 0.155 0.223 0.304 0.397 0.503 0.621

675 540 450 386 338 300 2700.079 0.124 0.179 0.243 0.318 0.402 0.4971013 648 450 331 253 200 162 134

0.099 0.155 0.223 0.304 0.397 0.503 0.621 0.7511013 810 675 579 506 450 405 368

0.079 0.124 0.179 0.243 0.318 0.402 0.497 0.6011200 768 533 392 300 237 192 159 133

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.6701200 960 800 686 600 533 480 436 400

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.5361800 1152 800 588 450 356 288 238 200 170

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.670 0.7871800 1440 1200 1029 900 800 720 655 600 554

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.6291875 1200 833 612 469 370 300 248 208 178 153

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.7301875 1500 1250 1071 938 833 750 682 625 577 536

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.5842813 1800 1250 918 703 556 450 372 313 266 230 176

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.730 0.9532813 2250 1875 1607 1406 1250 1125 1023 938 865 804 703

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.584 0.7632700 1728 1200 882 675 533 432 357 300 256 220 169 133

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0062700 2160 1800 1543 1350 1200 1080 982 900 831 771 675 600

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8044050 2592 1800 1322 1013 800 648 536 450 383 331 253 200

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0064050 3240 2700 2314 2025 1800 1620 1473 1350 1246 1157 1013 900

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8045513 3528 2450 1800 1378 1089 882 729 613 522 450 345 272

0.043 0.067 0.096 0.130 0.170 0.215 0.266 0.322 0.383 0.450 0.521 0.681 0.8625513 4410 3675 3150 2756 2450 2205 2005 1838 1696 1575 1378 1225

0.034 0.053 0.077 0.104 0.136 0.172 0.213 0.257 0.306 0.360 0.417 0.545 0.6897200 4608 3200 2351 1800 1422 1152 952 800 682 588 450 356

0.037 0.058 0.084 0.114 0.149 0.189 0.233 0.282 0.335 0.393 0.456 0.596 0.7547200 5760 4800 4114 3600 3200 2880 2618 2400 2215 2057 1800 1600

0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.6039113 5832 4050 2976 2278 1800 1458 1205 1013 863 744 570 450

0.033 0.052 0.074 0.101 0.132 0.168 0.207 0.250 0.298 0.350 0.406 0.530 0.6709113 7290 6075 5207 4556 4050 3645 3314 3038 2804 2604 2278 2025

0.026 0.041 0.060 0.081 0.106 0.134 0.166 0.200 0.238 0.280 0.324 0.424 0.53611250 7200 5000 3673 2813 2222 1800 1488 1250 1065 918 703 5560.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.60311250 9000 7500 6429 5625 5000 4500 4091 3750 3462 3214 2813 25000.024 0.037 0.054 0.073 0.095 0.121 0.149 0.180 0.215 0.252 0.292 0.381 0.483

10-4-32

10-2-32

10-4-33

10-2-33

10-4-42

10-2-42

10-4-43

10-2-43

10-4-52

10-2-52

10-4-53

10-2-53

10-4-62

10-2-62

10-4-63

10-2-63

10-4-73

10-2-73

10-4-83

10-2-83

10-4-93

10-2-93

10-4-103

10-2-103

2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6"

6'-0"

6'-6"

7'-0"

8'-0"

9'-0"

5'-6"

5'-0"


3/4" x 1/8"

3/4" x 3/16"

1" x 1/8"

1" x 3/16"

1-1/4" x 1/8"

1-1/4" x 3/16"

1-1/2" x 1/8"

1-1/2" x 3/16"

1-3/4" x 3/16"

2" x 3/16"

2-1/4" x 3/16"

2-1/2" x 3/16"

0.225

0.338

0.400

0.600

0.625

0.938

0.900

1.350

1.838

2.400

3.038

3.750







6.87.27.38.19.9

10.710.512.28.89.29.4

10.213.013.813.615.310.911.611.412.916.117.416.719.313.013.713.515.019.220.519.822.422.323.622.925.525.426.726.028.628.529.829.131.731.632.932.234.8





Steel Bar Grating

2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 203/4 13/8 2 25/8 31/4 37/8 41/2 51/8 53/4 63/8 7 75/8 81/4 87/8 91/2 101/8 103/4 113/8 12

13/16 17/16 21/16 211/16 35/16 315/16 49/16 53/16 513/16 67/16 71/16 711/16 85/16 815/16 99/16 103/16 1013/16 117/16 121/16

125/8 131/4 137/8 141/2 151/8 153/4 163/8 17 175/8 181/4 187/8 191/2 201/8 203/4 213/8 22 225/8 231/4 237/8

1211/16 135/16 1315/16 149/16 153/16 1513/16 167/16 171/16 1711/16 185/16 1815/16 199/16 203/16 2013/16 217/16 221/16 2211/16 235/16 2315/16

21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39

241/2 251/8 253/4 263/8 27 275/8 281/4 287/8 291/2 301/8 303/4 313/8 32 325/8 331/4 337/8 341/2 351/8 353/4

249/16 253/16 2513/16 267/16 271/16 2711/16 285/16 2815/16 299/16 303/16 3013/16 317/16 321/16 3211/16 335/16 3315/16 349/16 353/16 3513/16

40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58


1/8" Bar

3/16" Bar

1/8" Bar

3/16" Bar

No. of Bars

1/8" Bar

3/16" Bar

No. of Bars



34751 AMICO 13-69 10/18/2000 2:31 PM Page 19

20

844 540 375 276 211 167 1350.099 0.155 0.223 0.304 0.397 0.503 0.621

844 675 563 482 422 375 3380.079 0.124 0.179 0.243 0.318 0.402 0.4971266 810 563 413 316 250 203 167

0.099 0.155 0.223 0.304 0.397 0.503 0.621 0.7511266 1013 844 723 633 563 506 460

0.079 0.124 0.179 0.243 0.318 0.402 0.497 0.6011500 960 667 490 375 296 240 198 167

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.6701500 1200 1000 857 750 667 600 545 500

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.5362250 1440 1000 735 563 444 360 298 250 213

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.670 0.7872250 1800 1500 1286 1125 1000 900 818 750 692

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.6292344 1500 1042 765 586 463 375 310 260 222 191

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.7302344 1875 1563 1339 1172 1042 938 852 781 721 670

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.5843516 2250 1563 1148 879 694 563 465 391 333 287 220 174

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.730 0.953 1.2073516 2813 2344 2009 1758 1563 1406 1278 1172 1082 1004 879 781

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.584 0.763 0.9653375 2160 1500 1102 844 667 540 446 375 320 276 211 167

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0063375 2700 2250 1929 1688 1500 1350 1227 1125 1038 964 844 750

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8045063 3240 2250 1653 1266 1000 810 669 563 479 413 316 250

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0065063 4050 3375 2893 2531 2250 2025 1841 1688 1558 1446 1266 1125

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8046891 4410 3063 2250 1723 1361 1103 911 766 652 563 431 340

0.043 0.067 0.096 0.130 0.170 0.215 0.266 0.322 0.383 0.450 0.521 0.681 0.8626891 5513 4594 3938 3445 3063 2756 2506 2297 2120 1969 1723 1531

0.034 0.053 0.077 0.104 0.136 0.172 0.213 0.257 0.306 0.360 0.417 0.545 0.6899000 5760 4000 2939 2250 1778 1440 1190 1000 852 735 563 444

0.037 0.058 0.084 0.114 0.149 0.189 0.233 0.282 0.335 0.393 0.456 0.596 0.7549000 7200 6000 5143 4500 4000 3600 3273 3000 2769 2571 2250 2000

0.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.60311391 7290 5063 3719 2848 2250 1823 1506 1266 1078 930 712 5630.033 0.052 0.074 0.101 0.132 0.168 0.207 0.250 0.298 0.350 0.406 0.530 0.67011391 9113 7594 6509 5695 5063 4556 4142 3797 3505 3254 2848 25310.026 0.041 0.060 0.081 0.106 0.134 0.166 0.200 0.238 0.280 0.324 0.424 0.53614063 9000 6250 4592 3516 2778 2250 1860 1563 1331 1148 879 6940.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.60314063 11250 9375 8036 7031 6250 5625 5114 4688 4327 4018 3516 31250.024 0.037 0.054 0.073 0.095 0.121 0.149 0.180 0.215 0.252 0.292 0.381 0.483

8-4-32

8-2-32

8-4-33

8-2-33

8-4-42

8-2-42

8-4-43

8-2-43

8-4-52

8-2-52

8-4-53

8-2-53

8-4-62

8-2-62

8-4-63

8-2-63

8-4-73

8-2-73

8-4-83

8-2-83

8-4-93

8-2-93

8-4-103

8-2-103

2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0"

8'-0" 9'-0"

7'-0"

6'-0"

6'-6"

5'-6"


3/4" x 1/8"

3/4" x 3/16"

1" x 1/8"

1" x 3/16"

1-1/4" x 1/8"

1-1/4" x 3/16"

1-1/2" x 1/8"

1-1/2" x 3/16"

1-3/4" x 3/16"

2" x 3/16"

2-1/4" x 3/16"

2-1/2" x 3/16"

0.281

0.422

0.500

0.750

0.781

1.172

1.125

1.688

2.297

3.000

3.797

4.688






W/P-8 PANEL WIDTH (inches)2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 295/8 11/8 15/8 21/8 25/8 31/8 35/8 41/8 45/8 51/8 55/8 61/8 65/8 71/8 75/8 81/8 85/8 91/8 95/8 101/8 105/8 111/8 115/8 121/8 125/8 131/8 135/8 141/8

11/16 13/16 111/16 23/16 211/16 33/16 311/16 43/16 411/16 53/16 511/16 63/16 611/16 73/16 711/16 83/16 811/16 93/16 911/16 103/16 1011/16 113/16 1111/16 123/16 1211/16 133/16 1311/16 143/1630 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

145/8 151/8 155/8 161/8 165/8 171/8 175/8 181/8 185/8 191/8 195/8 201/8 205/8 211/8 215/8 221/8 225/8 231/8 235/8 241/8 245/8 251/8 255/8 261/8 265/8 271/8 275/8 281/8

1411/16 153/16 1511/16 163/16 1611/16 173/16 1711/16 183/16 1811/16 193/16 1911/16 203/16 2011/16 213/16 2111/16 223/16 2211/16 233/16 2311/16 243/16 2411/16 253/16 2511/16 263/16 2611/16 273/16 2711/16 283/1658 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73

285/8 291/8 295/8 301/8 305/8 311/8 315/8 321/8 325/8 331/8 335/8 341/8 345/8 351/8 355/8 361/8

2811/16 293/16 2911/16 303/16 3011/16 313/16 3111/16 323/16 3211/16 333/16 3311/16 343/16 3411/16 353/16 3511/16 363/16


8.38.78.89.6

12.213.012.814.410.911.311.412.216.016.916.718.313.414.214.015.419.921.220.523.116.016.716.618.023.825.124.427.027.628.928.230.831.532.832.134.735.336.635.938.539.240.539.842.4





Steel Bar Grating

Note: P-Press-Locked cross bars typically extend 1/8" each side. W-Welded cross rods may extend 1/8" each side. Panel widths do not include these extensions.

No. of Bars1/8" Bar

3/16" Bar

1/8" Bar

3/16" Bar

No. of Bars

1/8" Bar

3/16" Bar

No. of Bars



34751 AMICO 13-69 10/18/2000 2:31 PM Page 20

21

964 617 429 315 241 190 1540.099 0.155 0.223 0.304 0.397 0.503 0.621

964 771 643 551 482 429 3860.079 0.124 0.179 0.243 0.318 0.402 0.4971446 926 643 472 362 286 231 191

0.099 0.155 0.223 0.304 0.397 0.503 0.621 0.7511446 1157 964 827 723 643 579 526

0.079 0.124 0.179 0.243 0.318 0.402 0.497 0.6011714 1097 762 560 429 339 274 227 190 162

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.670 0.7871714 1371 1143 980 857 762 686 623 571 527

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.6292571 1646 1143 840 643 508 411 340 286 243 210

0.074 0.116 0.168 0.228 0.298 0.377 0.466 0.563 0.670 0.787 0.9122571 2057 1714 1469 1286 1143 1029 935 857 791 735

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.7302679 1714 1190 875 670 529 429 354 298 254 219 167

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.730 0.9532679 2143 1786 1531 1339 1190 1071 974 893 824 765 670

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.584 0.7634018 2571 1786 1312 1004 794 643 531 446 380 328 251 198

0.060 0.093 0.134 0.182 0.238 0.302 0.372 0.451 0.536 0.629 0.730 0.953 1.2074018 3214 2679 2296 2009 1786 1607 1461 1339 1236 1148 1004 893

0.048 0.074 0.107 0.146 0.191 0.241 0.298 0.360 0.429 0.504 0.584 0.763 0.9653857 2469 1714 1259 964 762 617 510 429 365 315 241 190

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0063857 3086 2571 2204 1929 1714 1543 1403 1286 1187 1102 964 857

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8045786 3703 2571 1889 1446 1143 926 765 643 548 472 362 286

0.050 0.078 0.112 0.152 0.199 0.251 0.310 0.376 0.447 0.524 0.608 0.794 1.0065786 4629 3857 3306 2893 2571 2314 2104 1929 1780 1653 1446 1286

0.040 0.062 0.089 0.122 0.159 0.201 0.248 0.300 0.358 0.420 0.487 0.636 0.8047875 5040 3500 2571 1969 1556 1260 1041 875 746 643 492 389

0.043 0.067 0.096 0.130 0.170 0.215 0.266 0.322 0.383 0.450 0.521 0.681 0.8627875 6300 5250 4500 3938 3500 3150 2864 2625 2423 2250 1969 1750

0.034 0.053 0.077 0.104 0.136 0.172 0.213 0.257 0.306 0.360 0.417 0.545 0.68910286 6583 4571 3359 2571 2032 1646 1360 1143 974 840 643 5080.037 0.058 0.084 0.114 0.149 0.189 0.233 0.282 0.335 0.393 0.456 0.596 0.75410286 8229 6857 5878 5143 4571 4114 3740 3429 3165 2939 2571 22860.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.60313018 8331 5786 4251 3254 2571 2083 1721 1446 1232 1063 814 6430.033 0.052 0.074 0.101 0.132 0.168 0.207 0.250 0.298 0.350 0.406 0.530 0.67013018 10414 8679 7439 6509 5786 5207 4734 4339 4005 3719 3254 28930.026 0.041 0.060 0.081 0.106 0.134 0.166 0.200 0.238 0.280 0.324 0.424 0.53616071 10286 7143 5248 4018 3175 2571 2125 1786 1522 1312 1004 7940.030 0.047 0.067 0.091 0.119 0.151 0.186 0.225 0.268 0.315 0.365 0.477 0.60316071 12857 10714 9184 8036 7143 6429 5844 5357 4945 4592 4018 35710.024 0.037 0.054 0.073 0.095 0.121 0.149 0.180 0.215 0.252 0.292 0.381 0.483

7-4-32

7-2-32

7-4-33

7-2-33

7-4-42

7-2-42

7-4-43

7-2-43

7-4-52

7-2-52

7-4-53

7-2-53

7-4-62

7-2-62

7-4-63

7-2-63

7-4-73

7-2-73

7-4-83

7-2-83

7-4-93

7-2-93

7-4-103

7-2-103

2'-0" 2'-6" 3'-0" 3'-6" 4'-0" 4'-6" 5'-0"

7'-0"

8'-0"

9'-0"

6'-0" 6'-6"

5'-6"


3/4" x 1/8"

3/4" x 3/16"

1" x 1/8"

1" x 3/16"

1-1/4" x 1/8"

1-1/4" x 3/16"

1-1/2" x 1/8"

1-1/2" x 3/16"

1-3/4" x 3/16"

2" x 3/16"

2-1/4" x 3/16"

2-1/2" x 3/16"

0.321

0.482

0.571

0.857

0.893

1.339

1.286

1.929

2.625

3.429

4.339

5.357



U = safe uniform load, psfC = safe concentrated load, pfwD = deflection, inchesE = modulus of elasticity, 29,000,000 psiF = fiber stress, 18,000 psiMaterial: ASTM A-569 standardDeflection: Spans and loads to the right of

the bold line exceed 1/4" deflection foruniform load of 100 psf which pro-vides safe pedestrian comfort. Thesecan be exceeded for other types of

loads with engineersapproval.Serrated Bars: For serratedgrating, the depth of grating

required for a speci-fied load is 1/4"deeper than thatshown in the table.

General:Loads anddeflections aretheoretical andbased onstatic loading.

9.8

10.7

14.6

16.1

12.7

13.7

19.0

20.5

16.0

17.2

23.9

25.8

18.9

20.2

28.3

30.2

32.7

34.6

37.1

39.0

41.5

43.4

45.9

47.8

P-7 PANEL WIDTH (inches)2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29

9/16 1 17/16 17/8 25/16 23/4 33/16 35/8 41/16 41/2 415/16 53/8 513/16 61/4 611/16 71/8 79/16 8 87/16 87/8 95/16 93/4 103/16 105/8 111/16 111/2 1115/16 123/85/8 11/16 11/2 115/16 23/8 213/16 31/4 311/16 41/8 49/16 5 57/16 57/8 65/16 63/4 73/16 75/8 81/16 81/2 815/16 93/8 913/16 101/4 1011/16 111/8 119/16 12 127/1630 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57

1213/16 131/4 1311/16 141/8 149/16 15 157/16 157/8 165/16 163/4 173/16 175/8 181/16 181/2 1815/16 193/8 1913/16 201/4 2011/16 211/8 219/16 22 227/16 227/8 235/16 233/4 243/16 245/8

127/8 135/16 133/4 143/16 145/8 151/16 151/2 1515/16 163/8 1613/16 171/4 1711/16 181/8 189/16 19 197/16 197/8 205/16 203/4 213/16 215/8 221/16 221/2 2215/16 233/8 2313/16 241/4 2411/1658 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83

251/16 251/2 2515/16 263/8 2613/16 271/4 2711/16 281/8 289/16 29 297/16 297/8 305/16 303/4 313/16 315/8 321/16 321/2 3215/16 333/8 3313/16 341/4 3411/16 351/8 359/16 36

251/8 259/16 26 267/16 267/8 275/16 273/4 283/16 285/8 291/16 291/2 2915/16 303/8 3013/16 311/4 3111/16 321/8 329/16 33 337/16 337/8 345/16 343/4 353/16 355/8 361/16



Steel Bar Gra

Amico Cat

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