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Estimating Labor Unit Data for Concrete Construction_tcm45-344396
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Transcript of Estimating Labor Unit Data for Concrete Construction_tcm45-344396
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Much has been said about concrete and its widerange of usage in the construction field, but all toolittle has been said of the cost of labor for the installa-tion of this important material. It is absurd simply to say that a unit or block of work is worth so many dollars be-cause it cost your company a certain price for the sametype of work on a previous project of the same nature.
To the limited field of literat u re on the subject of la-bor units for the placement of concrete, a comprehe n-s i ve new book has been added: “E s t i m a t o r’s Ge n e ra lCo n s t ruction Manhour Ma n u a l ,” compiled by John S.Page, and published by the Gulf Publishing Company of Houston, Texas. It covers, among other things, the place-ment of concrete in va rious forms and under va ri o u sco n d i ti o n s. This compre hen s i ve information provi d e s
an authori t at i ve source of data on labor units in man-hours that will prove valuable to the general constru c-tion contractor, as well as architectural, engineering andplant personnel concerned with construction labor cost.
As an estimating tool there are two features which par-ticularly contribute to this book: (1) It covers practicall y every type of concrete construction that will be encoun-t ered on residential, commercial and industrial build-ing including form s, re i n f o rcing steel, and concre t eplacement. (2) Each table of manhour units contains ad-equate explanations of the specific operations covered.
By special permission of the publishers, Co n c re t eCo n s t ruction is privileged to present a portion of the
manhour unit data relating to its field.
PRODUCTIVITY FACTORS
To intelligently use the manhour unit data presentedin these tables, the user must give consideration to sev-eral factors that tend to affect the productive efficiency of his crews as compared to the productive efficiency of the crews upon whose efforts the table units are based.
To assist the user in making these adjustments, the au-thor reports that the tables are based upon a productiv-ity efficiency rate of 70 percent, which he considers av-erage. As a guide to the basis he used in arriving at thispercentage, he classifies productivity efficiency into five
ranges as follows:
1. Very Low 10- 40%
2. Low 41- 60%
3. Average 61- 80%
4. Very Good 81- 90%
5. Excellent 91-100%
Bef o re an overall productivity efficiency is obtained,the estimator must first arrive at estimates of six impor-tant production elements that will affect the efficiency of
the crews The six classifications of production elementsa re: general economy, project supervision, labor re l a-tions, job conditions, equipment conditions and weath-er conditions.
Using the scale indicated by the five numbered rangesabove, the estimator evaluates each of the six factors inp e rcentages and obtains t he ave rage of these six per-centages in order to determine the ove rall pro ductivit y efficiency of his crews on the particular project underconsideration.
As an example let us assume that the estimator ra t esthese six production elements as follows:
1. General Econom y 75%
2. Project Supervision 70%
3. Labor Relations 65%
4. Job Conditions 60%
5. Equipment 70%
6. Weather 50%
Total 390%
Since there are six elements involved, we must now di-vide the total percentage by the number of elements toar rive at an average percentage of productivit y: 390 per-cent 6 = 65 percent average productivity efficiency.
As previously mentioned, the manhour tables arebased on an ave rage productivity efficiency of 70 per-cent; thus these units would have to be increased 5 per-
cent above the tabulated values in order to be applicableto the project under consideration.
EVALUATING THE DATA
Instead of increasing each of the manhour units by 5percent and then multiplying by the hourly compositerate of the cre w, it is much simpler to increase the hourly composite pay rate of the crew by 5 percent (that is, mul-tiply it by 1.05) in order to obtain the adjusted rate, andthen to apply this figure directly to the various manhourunits which appear in the tables for a given operation.
For example, let us assume that our considered pro-
ject has a certain amount of form work and that we willneed four (4), eight-man crews and that only one gener-al foreman will be needed to head the four cre ws:
General Carpenter Foreman $3.94 per hour
Carpenter Foreman $3.69 per hour
Journeyman Carpenter $3.44 per hour
Laborer $1.95 per hour
Truck Driver $2.03 per hourNote: General foreman and foreman are dea d w eightsince they do not work with their tools; however theymust be considered and charged to the compositecrews.
ESTIMATING LABOR UNIT DATA
FOR CONCRETE CONSTRUCTION
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Foot ing & Heavy Mat FormsMANHOURS PER SQUARE FOOT
Footing form ma nhours are based onusing 2-inch by 12-inch material pro p-erly braced and anchored. If footing height is to be greater than one foot, addt we n t y- f i ve percent to manhours for
each additional foot or fraction. Assume heavy mat forms to be made
of 2-inch material at least 3 feet high. If mats are to be greater than 3 feet inheight, add 10 percent for each addi-tional foot or fraction.
Manhours in all of these tables are forinitial set-up of one use. If forms are tobe re-used, eliminate manhours for fab-rication and apply Re-Use Factor man-hours on page 5.
Manhours in these tables do not everinclude the placement or setting of an-chor bolts or miscellaneous embeddedsteel items. See re s p e c t i ve tables forthese charges.
CREW FOR COMPOSITE RATE:
One General Foreman 2 hours @ $3.94—$ 7.88
One Foreman 8 hours @ $3.69—$ 29.52
Five Carpenters 8 hours @ $3.44—$137.60
Two Laborers 8 hours @ $1.95—$ 31.20
One Truck Driver 4 hours @ $2.03—$ 8.12
Total for 60 hours $214.32
$214.32 60 = $3.572 co mpos ite ma nhour rateFor the project under consideration, with the produc-
tivity efficiency rated a t 65 percent, the manhour ra t e would be evaluated by multiplying $3.572 by 1.05, whichequals $3.75: composite rate for 65 percent productivit y.
Simply by multiplying the number of manhours esti-mated for a given block or item of work by the arrived atcomposite ra t e, a total estimated direct labor cost, indollar va l u e, can easily and accurately be obtained,
whether it be now or ten years from now and for any ge-ographical location in the world.
WHAT THE TABLES COVER
The author of these manhour tables points out specif-ically what has been taken into account in determining these va l u e s. The user should study the notes that ac-company each table. Also, it is to be especially noted thatthe tables presented include allowances for labor in-vo l ved for handling, hauling and installing where ap-p lica bl e, but do not cover the cost of the materials andequipment itself; nor do they include any allowance for
overhead cost or profit.
The labor unit tables on this and the following pages a re reprinted from “Es t i m a t o r ’s Ge n e ral Construction Manhour Ta b l e s” copyrighted 1961 by Gulf Pu b l i s h g Compan y, Box 2608, Houston 1, Texas.
Manhours
Item Carpenter Laborer Truck TotalDriver
Continuous Wall TypeFabricate .030 .008 – .038
Erect .026 .008 .001 .035Strip & clean .008 .015 .001 .024
Total .064 .031 .002 .097
Spread TypeFabricate .038 .008 – .046Erect .029 .015 .001 .045Strip & clean .008 .015 .001 .024
Total .075 .038 .002 .115
Heavy Mat or Pile CapFabricate .035 .010 – .045Erect .054 .022 .001 .077
Strip & clean .008 .023 .001 .032Total .097 .055 .002 .154
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Manhours
Item Carpenter Laborer Truck TotalDriver
Grade BeamsFabricate .023 .008 – .031Erect .036 .011 .001 .048Strip & clean .008 .015 .001 .024
Total .067 .034 .002 .103
Foundation or Basement WallsFabricate .038 .007 – .040Erect .042 .011 .001 .054Strip & clean .007 .015 .001 .023
Total .082 .033 .002 .117
Tilt-Up WallsFabricate .030 .008 – .038Erect .026 .008 .001 .035Strip & clean .008 .015 .001 .024
Total .064 .031 .002 .097
Manhours
Item Carpenter Laborer Truck TotalDriver
Using 2”X4” Lumber ClampsFabricate .030 .008 – .038Erect .026 .008 .001 .035Strip & clean .008 .015 .001 .024
Total .064 .031 .002 .097
Using Metal ClampsFabricate .038 .008 – .046Erect .029 .015 .001 .045Strip & clean .008 .015 .001 .024
Total .075 038 .002 .115
Foundation, Tilt-Up Walls&Grade Beams
MANHOURS PER SQUARE FOOTManhours are based on the use of ply-form material with studs and whalers of 2-inch material properly placed and the
n e c e s s a ry holes drilled for form ties where required.
Grade beam f o rm manhours are forside forms only, with the assumptionthat ground will form the bottom of beam.
Tilt-up wall forms are based on being f a b ricated and placed on level accessi-ble location.
Wood Pier FormsMANHOURS PER SQUARE FOOT
Manhours are for the use of plywoodf a b ricated forms with 2-inch by 4-inch
wood clamps or metal clamps as thecase may be and include all necessary
bracing and anchoring.
Metal Wall Forms forCont inuous Foundat ionsMANHOURS PER SQUARE FOOT
Manhours are based on the installationof prefabricated metal panel forms withthe necessary whalers, bracing and an-chors made of 2-inch materials.
Re-use Factor for re-oiling of f orm sshould be applied for each re-use of forms.
Manhours
Item Carpenter Laborer Truck TotalDriver
Foundation Walls to 8' High
Erect & brace .053 .021 .002 .076Strip & clean .011 .023 .002 .036
Total .064 .044 .004 .112
Foundation Walls 8' to 12' High
Erect & brace .051 .020 .002 .073Strip & clean .010 .022 .002 .034
Total .061 .042 .004 .107
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Manhours
Item Carpenter Laborer Truck TotalDriver
12" RoundFabricate & erect .050 .008 .001 .059Strip .008 .008 .001 .017
Total .058 .016 .002 .076
24" RoundFabricate & Erect .052 .008 .001 .061Strip .008 .008 .001 .017
Total .060 .016 .002 .078
30" RoundFabricate & Erect .054 .008 .001 .063Strip .008 .008 .001 .017
Total .062 .016 .002 .080
30" RoundFabricate & Erect .056 .008 .001 .065
Strip .008 .008 .001 .017Total .064 .016 .002 .082
Manhours
Item Carpenter Laborer Truck TotalDriver
Walls Ground to 8' HighErect & Brace .059 .023 .003 .085Strip & clean .012 .031 .003 .046
Total .071 .054 .006 .131
Walls 8' to 16' HighErect & Brace .066 .026 .003 .095Strip & clean .014 .035 .003 .052
Total .080 .061 .006 .147
Walls 16' to 20' HighErect & Brace .078 .031 .003 .112Strip & clean .017 .041 .003 .061
Total .095 .072 .006 .173
Fiber Tube Pier FormsMANHOURS PER LINEAR FOOT
Manhour units cover the complete in-stallation of fiber tubing as listed, in-cluding the fabrication and installation
of necessary 1- and 2-inch planking forbracing and anchoring and the stripping of all items after initial concrete set.
Metal Wall Forms forContinuous Above Grade Walls
MANHOURS PER SQUARE FOOTManhours are based on the installation
of prefabricated metal panel forms withthe necessary whalers, bracing and an-chors made of 2-inch materials.
Re-use Factor for re-oiling of form sshould be applied for each re-use of forms.
Manhours in this and following tablesdo not include scaffolding allowance.
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Continuous Wood Wall FormsMANHOURS PER SQUARE FOOT
Manhours are based on the use of ply- wood panels with 2-inch studs and whalers properly placed and the neces-
s a ry drilled holes for form ties as re-quired.If forms are to be re-used, eliminate
fabrication manhours and apply Re-useFactor manhours.
Re-Use FactorsRe-use factor manhours are average forthe minor replacement or repair of alltypes of wood forming.
The manhours shown should be sub-stituted for the initial fabrication man-hours for all form work, in accordan c e with its estimated re-uses.
If major repairs are re q u i red for re -use of form work, it should be charg edat initial fabrication cost for that partic-ular type of form work.
FootingsMANHOURS PER CUBIC YARD
Manhours include complete placementand vibration of concrete for the itemslisted.
Manhours in this and following ta-bles do not include necessar y cra f ts t a n d - by time, fabrication of specialramps or finishing of concrete.
Manhours
Item Carpenter Laborer Total
Repairs – First Re-use .01 .003 .013Repairs –Second Re-use .02 .004 .024Repairs – Third Re-use .03 .006 .036Repairs – Subsequent Re-uses .04 .007 .047
Oiling after each use – .005 .005
Manhours
Item Laborer Carpenter Oper. Oiler TotalEngr.
Continuous Wall TypeChute .46 .03 – – .49Buggies .60 .03 – – .60Crane & bucket .81 – .03 .03 .87Conve yor & buggy .70 – .03 – .73
Spread Type FootingsChute .53 .04 – – .57Buggies .70 – – – .70Crane & bucket .88 – .03 .06 .94Conve yor & buggy .79 – .03 – .82
Heavy Mat or Pile CapChute .35 .05 – – .40Buggies .75 – – – .75Crane & Bucket .38 – .06 .06 .50
Manhours
Item Carpenter Laborer Truck TotalDriver
Walls Ground to 8' HighFabricate .030 .008 – .038Erect .045 .012 .002 .059Strip & clean .007 .029 .002 .038
Total .082 .049 .004 .135
Walls 8' to 16' HighFabricate .030 .008 – .038Erect .051 .013 .002 .066Strip & clean .009 .033 .002 .044
Total .090 .054 .004 .148
Walls 16' to 20' HighFabricate .030 .008 – .038Erect .060 .016 .002 .078Strip & clean .010 .039 .002 .051
Total .100 .063 .004 .167
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Foundation Walls &Grade Beams
MANHOURS PER CUBIC YARDManhours include necessary set-up,placement and vibration of concrete.
Piers
MANHOURS PER CUBIC YARDManhours include set-up time and theplacement and vibration of concrete forsquare and round piers as described.
Additional allowance has been givento the placement of concrete in ro u n dpiers due to the fact that additional caremust be taken in this type of form work.
Above Grade WallsMANHOURS PER CUBIC YARD
Manhours are for the placing and vibra-
tion of concrete for the described walls.Manhours do not include the fabri-
cation, erection or dismantling of hoistor the finishing of concrete.
Manhours
Item Laborer Carpenter Oper. Oiler TotalEngr.
Grade BeamsChute .55 .04 _ – .59Buggies .91 – – – .91Crane & bucket .94 – .03 .03 1.00
Conve yor & buggy .91 – .07 – .98
Foundation or Basement WallsChute .55 .04 – – .59Buggies 1.00 – – – 1.00Crane & bucket .99 – .04 .04 1.07Conve yor & buggy 1.00 – .07 – 1.07
Manhours
Item Laborer Carpenter Oper. Oiler TotalEngr.
Square PiersChute .70 .05 _ – .75Buggies .96 – – – .96Crane & bucket 1.02 – .06 .06 1.14Conve yor & buggy .96 – .10 – 1.06
Round PiersChute .74 .05 – – .79Buggies 1.00 – – – 1.00Crane & bucket 1.07 – .06 .06 1.19Conve yor & buggy 1.00 – .11 – 1.11
Manhours
Item Carpenter Laborer Truck TotalDriver
Walls Ground to 8' High
Hoist & buggies .88 .16 – 1.04Crane & bucket .62 .07 .07 .76Crane, bucket & buggies .68 .09 .09 .86Conve yor & buggies .59 .07 – .66
Walls 8' to 16' High
Hoist & buggies 1.17 .16 – 1.33Crane & bucket .83 .07 .07 .76Crane, bucket & buggies .91 .09 .09 1.09
Walls 16' to 20' HighHoist & buggies 1.46 .16 – 1.62Crane & bucket 1.04 .07 .07 1.18Crane, bucket & buggies 1.14 .09 .09 1.32
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Wood Column FormsMANHOURS PER SQUARE FOOTManhours include all necessary laborfor the actual fabrication, erecting ands t ripping of exterior and interi o rcolumns as outlined using plywood side with 1- and 2-inch planking for neces-sary clamps, bracing and anchoring.
Fiber Tube Column FormsMANHOURS PER LINEAR FOOT
Manhours include time limitations forthe complete fabrication and erection of 1- and 2-inch materials for bracing anda n c h o ring as well as the erection of allfiber tubing, bracing and the removal of a n c h o ring and stripping of all compo-nents after initial concrete set.
Manhours
Item Carpenter Laborer Truck TotalDriver
Exterior ColumnsFabricate .029 .013 – .042Erect .052 .026 .001 .079Strip & clean .010 .026 .001 .037
Total .091 .065 .002 .158
Interior ColumnsFabricate .036 .013 – .049Erect .065 .033 .001 .099Strip & clean .010 .026 .001 .037
Total .111 .072 .002 .185
Manhours
Item Carpenter Laborer Truck TotalDriver
12" RoundFabricate & erect .040 .006 .001 .047Strip .006 .006 .001 .013
Total .046 .012 .002 .060
24" RoundFabricate & erect .042 .006 .001 .049Strip .006 .006 .001 .013
Total .048 .012 .002 .062
30" RoundFabricate & erect .046 .006 .001 .053Strip .006 .006 .001 .013
Total .052 .012 .002 .066
36" RoundFabricate & erect .050 .006 .001 .057Strip .006 .006 .001 .013
Total .056 .012 .002 .070
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Radial & RetainingWood Wall Forms
MANHOURS PER SQUARE FOOTManhours are based on the use of ply-
wood panels with 2-inch studs and whalers properly placed and the neces-s a ry drilled h oles for form ties as re-quired.
ColumnsMANHOURS PER CUBIC YARD
Manhours are for the placing and vibrat-ing of the listed types of columns.
Additional allowance has been give nto the placement of round columns dueto the fact that additional care must betaken in this type of form work.
Manhours do not include craft stand-
by time, the fabrication, installation anddismantling of hoist or the finishing of concrete.
Tilt-Up Concrete PanelsMANHOURS PER SQUARE FOOT
Manhours include the placement andv ib ration of concrete and the finishing,
curing and erection of panels.Manhours are based on the placing of c o n c rete in pre - e rected forms on a flatle vel location easily accessible for bothplacing and erection operations.
Placing concrete manhours are basedon placing concrete direct from re a d y mix truck into forms.
Manhours do not include the fabrica-tion, erection or stripping of forms.
Manhours
Item Carpenter Laborer Truck TotalDriver
Radial Walls to 4' HighFabricate .049 .010 – .059Erect .064 .017 .001 .082Strip & clean .010 .022 .001 .033
Total .123 .049 .002 .174
Radial Walls 4' to 12' HighFabricate .059 .012 – .071Erect .077 .020 .001 .045Strip & clean .012 .026 .001 .024
Total .148 .058 .002 .115
Retaining Wall to 10' HighFabricate .036 .007 – .043Erect .047 .013 .001 .061Strip & clean .007 .016 .001 .024
Total .090 .036 .002 .128
Manhours
Item Laborer Oper. Oiler TotalEngr. r
Exterior Square ColumnsHoist & buggies 1.43 .14 – 1.57Crane, bucket & buggies .99 .08 .08 1.15
Interior Square ColumnsHoist & buggies 1.79 .16 – 1.95
Crane, bucket & buggies 1.24 .10 .10 1.44
Round Columns (Interior)Hoist &buggies 1.87 .17 – 2.04Crane, bucket & buggies 1.30 .11 .11 1.52
Column CapsHoist & buggies 2.40 .15 – 2.55Crane, bucket & buggies 1.95 .12 .12 2.19
Manhours
Item Laborer Cement Iron TotalFinisher Worker
Pre-Cast Panels 6" Thick Place Concrete .147 – – .147Finish & Cure .002 .015 – .017Erect Panels – – .120 .120
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Wood Beam & Girder Forms
MANHOURS PER SQUARE FOOT
Manhours are based on the use of ply- wood and 1- and 2-inch planking ma-t e rials all properly braced and an-chored.
Sufficient time has been allowed tocover the outlined operations and nec-essary items of labor operations.
Radial & Retaining WallsMANHOURS PER CUBIC YARD
Manhours include set-up time and theplacement and vibration of concrete forthe items outlined.
Manhours do not include craft stand-by time, the fabrication of chutes or the
finishing of concrete.
Floor Slabs, Beams & GirdersMANHOURS PER CUBIC YARD
Manhours include set-up time andplacement and vibration of concrete asoutlined.
Manhours do not include hoist orchute fabrication or hoist erection orfinishing of concrete.
Manhours
Item Carpenter Laborer Truck TotalDriver
Square BeamsFabricate .038 .011 – .049Erect .071 .026 .001 .098Strip & clean .008 .023 .001 .032
Total .117 .060 .002 .179
Shored Beam & GirderFabricate .032 .013 – .045Erect .088 .035 .001 .124Strip & clean .017 .045 .001 .063
Total .137 .093 .002 .232
Hung from Steelbeam & GirderFabricate .027 .011 – .038Erect .073 .029 .001 .103Strip & clean .014 .037 .001 .052
Total .114 .077 .002 .193
Manhours
Item Laborer Carpenter Oper. Oiler TotalEngr.
Radial Walls to 4' HighChute .55 .04 – – .59Crane & bucket .65 – .07 .07 .79
Radial Walls 4' to 12' HighCrane & bucket .85 – .09 .09 1.03Conve yor .70 – .07 – .77
Retaining Wall to 10' HighCrane & Bucket 1.10 – .10 .10 1.30Conve yor .90 – .09 – .99
Manhours
Item Laborer Carpenter Oper. Oiler TotalEngr.
Square Beams & Girder
Hoist & buggies 1.88 – .19 – 2.07Crane ,bucket & buggies 1.43 – .11 .11 1.65
Elevated Floor SlabsHoist & buggies 1.56 – .16 – 1.72Crane ,bucket & buggies 1.09 – .10 .10 1.29
Ground Floor SlabChute .41 .04 – – .45Buggies .87 – – – .87Crane & Bucket 1.10 – .10 .10 1.30
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Wood Forms forElevated Slabs
MANHOURS PER SQUARE FOOT
Manhours are based on the use of ply-
wood and properly sized timbers as re-quired for bracing and supporting.
Sufficient time has been allowed tocover the outlined operations and neces-sary items of labor operations.
M etal Floor Pan FormsMANHOURS PER SQUARE FOOT
Manhours are based on the installationof pre f a b ricated metal pan forms withthe necessary size timber supports.
Equipment FoundationsSimple Layout
MANHOURS PER SQUARE FOOTManhours are based on the fabric a t i onand installation of 2-inch materials forf o rm w o rk to 18 inches high, and ply-
wood sheathing for forms to 4 feet high,all properly braced and anchored inplace.
A simple layout is that of a smalls q u a re pad placed either integral withfloor or over preset dowels left purpose-ly in preplaced floor for this reason.
Manhours
Item Carpenter Laborer Truck TotalDriver
Flat Slab with Wood ShoresMake-up & erect .067 .036 .001 .104Strip & clean .004 .036 .001 .041
Total .071 .072 .002 .145
Flat Slab with Adjustable ShoresMake-up & erect .043 .030 .001 .074Strip & clean .004 .036 .001 .041
Total .047 .066 .002 .115
Flat Slab Hung from SteelFabricate &erect .041 .009 .001 .051Strip & clean .005 .020 .001 .026
Total .046 .029 .002 .077
Manhours
Item Carpenter Laborer Truck Total
Driver
Metal Pan with Adjustable ShoresCut & erect lumber .040 .023 .002 .065Erect pans & shores .010 .015 .002 .027Strip & clean – .018 .002 .020
Total .050 .056 .006 .112
Metal Pan with Wood ShoresCut & erect lumber .050 .040 .002 .092Erect pans & shores .010 .015 .002 .027Strip & clean – .018 .002 .020
Total .060 .073 .006 .139
Manhours
Item Carpenter Laborer Truck TotalDriver
Square Pads 6" to 18" High Ground FloorBuild in place .14 .03 .01 .18Strip & clean .01 .03 – .04
Total .15 .06 .01 .22
Square Pads 6" to 18" High Elevated FloorsBuild in place .16 .03 .01 .20Strip & clean .01 .04 – .05
Total .17 .07 .01 .25
Square Pads to 4' High Ground FloorFabricate & erect .17 .04 .01 .22Strip & clean .02 .04 – .06
Total .19 .08 .01 .28
Square Pads to 4' High Elevated FloorsFabricate & erect .19 .04 .01 .24Strip & clean .02 .05 – .07
Total .21 .09 .01 .31
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Equipment FoundationsComplex Layout
Bulk y, Offset, Ske wed and AngledMANHOURS PER SQUARE FOOT
Complex foundation manhours are av-e rage for all sizes an d shapes and arebased on the use of 1- and 2-inch plank-ing, plywood sheathing and minor sheet
metal cuts and bends. A complex layout is that of a large andbulky foundation with many offsets,skews and angles, such as a foundationfor a turbo-generator.
Rods & M eshMANHOURS PER UNITS LISTED
The manhours cover necessary time forthe various operations listed.
Manhours
Item Carpenter Laborer Truck TotalDriver
Average All Heights & SizesFabricate & erect .20 .08 .02 .30Strip & clean .05 .12 – .17
Total .25 .20 .02 .47
Tank Cradle FormsBuild in place .13 .04 .01 .19Strip & clean .01 .03 .01 .04
Total .14 .07 .02 .23
Manhours
Item Per Ton Per cwt
Unload, Sort & Pile Rods 1.75 0.0875
Fabricate – Cut and Bend1/2' round and larger 6.00 0.30003/8' round and smaller 11.48 0.5740
Place loose without tieing
3/4" round or larger 7.25 0.36255/8" round and smaller 8.78 0.4390
Place and Tie RodsWalls, columns, etc. 16.50 0.8250Floors 22.10 1.1050
Average All Operations – All sizeswithout tieing 18.51 0.9250With tieing 29.79 1.4900
Item Manhoursper 100 sq ft
Welded Wire MeshCut & Place .80
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Hook TypeAnchor Bolt Inst allation
MANHOURS EACHManhours are based on overall length of anchor bolt from end to end including hook and are average for all heights.
Manhours are for installation of tem-plate and bolt, or bolt and sleeve, as thecase may be, for the size and length out-
lined. All bolts 7 ⁄ 8 inch and larger are as-
sumed to be sleeved and those smallerthan 7 ⁄ 8 inch round are assumed to be without sleeves.
Manhours in this and following tablesdo not include fabrication of bolts orfield engineering time spent aligning and checking bolts.
For sizes not listed, take the next high-est listing.
Hook TypeAnchor Bolt Inst allation
MANHOURS EACHManhours are based on overall length of anchor bolt from end to end including hook and are average for all heights.
All bolts listed are assumed to be
sleeved.For sizes not listed in this and follow-ing tables, take the next highest listing.
Equipment FoundationsMANHOURS PER CUBIC YARD
Manhours are for the placement and vi-
bration of concrete for the items listed.Sq u a re pad manhours are based on
placing of square pads to 4 feet high ei-ther integral with floor or over pre - s e tdowels on pre-placed floor.
Offset, skewed or angled manhoursare based on that of placing a large andbulky foundation with offsets or anglesor both.
Manhours Each For Overall LengthSize
0' 8” 1' 0" 1' 6" 2' 0" 2' 6" 3' 0" 3' 6" 4' 0"
1 ⁄ 4" .15 .15 .20 .20 – – – –3 ⁄ 8" .15 .15 .20 .20 – – – –1 ⁄ 2" .15 .15 .25 .28 – – – –5 ⁄ 8" .15 .20 .25 .28 .30 .33 – –3
⁄ 4" .18 .20 .28 .30 .35 .38 – –7 ⁄ 8" – – .40 .43 .45 .48 .50. .53
1" – – .40 .45 .48 .50 .53 .58
11 ⁄ 4" – – .48 .50 .50 .53 .5 .65
11 ⁄ 2" – – .50 .55 .55 .58 .60 .70
13 ⁄ 4" – – .55 .58 .60 .65 .668 .73
2" – – – .65 .68 .70 .75 .78
21 ⁄ 4" – – – .70 .73 .75 .78 .80
21 ⁄ 2" – – – .75 .78 .78 .80 .85
Manhours Each For Overall LengthSize
4' 6” 5' 0" 5' 6" 6' 0" 6' 6" 7' 0" 7' 6" 8' 0"
7 ⁄ 8" .90 .98 1.10 1.15 1.23 1.30 1.35 1.40
1" .93 1.00 1.15 1.25 1.28 1.38 1.40 1.54
11 ⁄ 4" .95 1.10 1.25 1.28 1.30 1.40 1.45 1.50
11 ⁄ 2" .98 1.15 1.28 1.33 1.38 1.43 1.48 1.58
13 ⁄ 4" 1.00 1.25 1.33 1.40 1.43 1.50 1.55 1.60
2" 1.10 1.28 1.40 1.45 1.50 1.58 1.60 1.65
21 ⁄ 4" 1.15 1.33 1.45 1.48 1.55 1.60 1.63 1.68
21 ⁄ 2" 1.25 1.40 1.48 1.53 1.60 1.63 1.68 1.70
Manhours
Item Laborer Oper. Oiler Total
Engr. rSquare Pads
Crane & bucket 1.50 .19 .19 1.88Crane, bucket & buggies 2.00 .25 .25 1.50
Offset, Ske wed & AngledCrane & bucket 2.44 .38 .38 3.20Crane, bucket & buggies 3.25 .50 .50 4.25
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8/20/2019 Estimating Labor Unit Data for Concrete Construction_tcm45-344396
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Topping FinishMANHOURS PER SQUARE FOOT
Manhours are for topping finish and in-
clude mixing and stand-by time whererequired.Manhours do not include the placing
and vibrating of main floors.
Concret e FinishMANHOURS PER SQUARE FOOT
Manhours are for the types of finish not-ed and include all necessary operations.
In most are a s, craft jurisdiction pre-vents laborers from helping cement fin-ishers. Should this be the case, use totalhours as listed for cement finisherhours.
ManhoursItem
Cement Finisher
Integral Topping1 ⁄ 2" by hand .0291 ⁄ 2" by machine .018
1" by hand .068
1" by machine .022
Separate Topping1 ⁄ 2" by hand .0361 ⁄ 2" by machine .018
1" by hand .068
ManhoursSurface Finish
CementFinisher La borer Total
Car borundum Rub .045 – .045
Remove Fins or Ties – Point & Patch .030 – .030
Machine Trowel & Hand Burnish .015 – .015
Hand Steel Trowel .030 – .030
Woodfloat .001 – .001
Broom .003 – .003
Screeding Off .003 .003 .006
Cure & Protect .002 – .002
Grout Column Bases (1") .250 .025 .500
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