The Lapeyre Stair Line - Suppliers -...
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The Lapeyre Stair Line Innovative, Customized Stair Systems TM
Transcript of The Lapeyre Stair Line - Suppliers -...
The Lapeyre Stair LineInnovative, Customized Stair Systems
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Lapeyre StairWe don't miss a step.
Lapeyre Stair serves all your stair needs quickly and precisely. In-house detailing and design ensure project accuracy – every time, on time.
An innovative, expanding product line of welded stairs, bolted stairs, alternating tread stairs, and platform systems are available to meet your on-site assembly requirements.
Lapeyre Stair serves diverse markets with consistent results.
CommercialHealthcare / HospitalsGovernment and Military FacilitiesMid / High Rise Office BuildingsSchoolsHotelsConvention CentersMuseumsParking Garages
IndustrialOffshore Oil RigsWastewater Treatment FacilitiesWarehousesManufacturing PlantsFreight Terminals
ResidentialMid / High Rise Residential BuildingsDormitoriesApartment Buildings
Lapeyre Stair, Inc.P.O. Box 50699New Orleans, LA 70150Telephone: 504-733-6009Fax: 504-733-4393 Toll Free: [email protected]
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The Lapeyre Stair AdvantageProviding professionals with advantages to meet a range of functional and aesthetic requirements.
Architects • Diverse and innovative product line for virtually any access need. • Downloadable specifications and detailing instructions available on our website
for all stair products. • Downloadable CAD drawings for Alternating Tread Stairs and standard platforms
available on our website. • AIA-approved CEU course covering all aspects of stair design.
Fabricators and Contractors • Complete detailing, engineering, and fabrication services. • Expedited 1-day quote turnaround for any project size.
Experience the ease of working with long-time stair building professionals.
Call 800-535-7631 or write to [email protected] to contact a knowledgeable customer service agent.
Accurate and timely advanced stair building technology since 1981.
www.lapeyrestair.com
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Lapeyre Stair began manufacturing alternating tread stairs in 1981 and has since expanded its product line to supply its customers with innovative, customized stair systems.
Services and General Information ....................................................................... 4
Determining Stair Model. ....................................................................................... 6
Alternating Tread Stairs. ........................................................................................ 8
Welded Egress Stairs. ........................................................................................... 13
Bolted Stairs. .......................................................................................................... 14
Landings and Platforms ....................................................................................... 18
Specifications ......................................................................................................... 23
Building Codes ....................................................................................................... 27
If you don’t see the stair system you need listed here or on the website, contact a customer service representative.
The Lapeyre Stair team will customize a solution to meet your needs.
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Services and General InformationLapeyre Stair friendly and knowledgeable Customer Service Representatives are here to help you determine which stair model is right for you.
ContactEmail: [email protected]: 800-535-7631Phone: 504-733-6009Fax: 504-733-4393
Lapeyre Stair Assembly DrawingsAssembly instructions are provided for custom-designed alternating tread and bolted stair applications. Plan drawings are step-by-step connection details with a list of provided hardware. Please note that anchoring hardware will not be included.
A full set of erection drawings are provided for welded stair projects. Be sure to visit the website for the following: • Alternating Tread Stair Instructions • Bolted Stair Instructions • Sample Assembly Manuals • Sample All Welded Erection Drawings
CEU InformationLapeyre Stair offers the Continuing Education course "Simplified Steel Stair Design for Commercial and Institutional Buildings." This course will examine how architects and metal stair fabricators and manufacturers can work together through an integrated design process in a truly collaborative manner to simplify the design and construction of stair systems in buildings. It is a one hour free course that will earn 1.0 HSW credits. • Identify and recognize the overall parameters, general code requirements, and
preliminary design outcomes in a building stair design. • Determine the specific requirements and options for stair treads, risers, and
landings in building stair systems. • Differentiate between the specific requirements and options for stair guards and
handrails in commercial and industrial buildings. • Formulate construction specifications for steel stair systems, working in concert with
recognized standards and specialty fabricators.Visit the website for further details: www.lapeyrestair.com/info/CEU.aspx
Design DetailingLapeyre Stair has an in-house design team that can provide detailed drawings of your stair system needs.
Engineering Stamps and CalculationsUpon request, Lapeyre Stair can provide three sets of stamped drawings, available for all 50 states.
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Precision GuaranteeLapeyre Stair uses CNC manufacturing and proprietary fixtures to guarantee that our stairs are built to ¹⁄16" of the specified dimensions. Our greater accuracy reduces misalignment problems during field installation.
On-time ShippingOur 99.9% on-time shipping record speaks for itself. This eliminates the need for temporary site stairs and helps ensure that stairs can be installed efficiently early in the project to provide access for construction crews.
Touch Up PaintStocked spray cans of standard finishes are available for purchase. Call for pricing and further information for special RAL selected finishes.
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Determining Stair Model
Stair Model Available by Building Code or Regulation
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OSHA X X X X
BOCA Industrial X X
SBC / Southern Building Code (SBCCI) – Industrial X X
UBC (Uniform Building Code) – Industrial X
IBC Industrial X X X
NFPA Industrial X X
IBC Commercial X X X
ADA (American with Disabilities Act) X X X
NFPA – Commercial X X X
ANSI – Industrial X X
Cal-OSHA X X X
Stair Type Available by Stair Model*
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Industrial Egress X X X X X
Industrial Equipment Access X X X X
Industrial Secondary Access X X X X X X
Commercial Egress X X X
Accessible Commercial Egress X X X
Commercial Residential Egress (hotels, apartments, etc.) X X X
Construction Site Stairs (OSHA) X
Mezzanine/Storage 250 sq feet or less X X X X X X
Access to Unoccupied Roof / Roof Hatch X X X
*Use our Alternating Tread Stairs where you would use a steep ladder or steep stair (between 50 - 70 degrees). Common applications include: Mezzanines, Rooftops, Equipment Access, Conveyors, Crossover Systems.
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Rail Type Available by Stair Model*
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Guardrail/Stair Rail (guard also acts as a handrail) X X X X
Guardrail with Interior Handrail X X X
Wall-mounted Handrail X X X
*Several combinations of guard rails and handrails are available. Lapeyre Stair customer service representatives can help you determine what is required based on your code and site condition. An interior handrail and/or a guard may be required if a wall or other guard is not present.
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Conventional Stair
Steep Stair
Alternating Tread Stair
Imagine walking down (or up) a conventional stair. Each foot normally uses only about half of each tread, stepping out and over the unused section (shaded red).
On a steeper stair or ladder, the unused half tread becomes an obstacle, significantly reducing the usable tread depth of the tread directly below. As the angle increases, the problem worsens.
In contrast, the Lapeyre stair removes the unused half of each tread, allowing the foot to reach the next tread in a straight, direct line, providing more usable tread depth.
The Alternating Tread StairWhen walking down or up a conventional stair, each foot generally uses only half of each tread, stepping out and over the unused portion (shaded red).
On a steeper stair or ladder, the unused half tread becomes an obstacle as it significantly reduces the usable tread depth of the immediate next tread. As the angle increases, the problem worsens.
In contrast, the Lapeyre Alternating Tread Stair removes the unused half of each tread, allowing the foot to reach the next tread in a straight, direct line, providing more usable tread depth.
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Alternating Tread Stair Applications and Industries
Use an Alternating Tread Stair anywhere you would use a ship's ladder, steep stair, (between 50-70 degrees) or vertical ladder.
Common Applications
CatwalksConveyorsCrossover SystemsEquipment AccessEquipment VehiclesIn-Plant OfficesMachineryMezzanines
Offshore VesselsPitsRoof Hatch AccessRooftops Storage TanksStorage and Work Platforms
Alternating Tread Stairs have been installed in nearly every industry imaginable.
Industry and Business Sectors
ElectronicEducationFederalFood / BeverageGlassLumber / PaperMetals
Petroleum and ChemicalPharmaceuticalPublic ServiceRubber / PlasticsTransportationWastewater Treatment
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Alternating Tread Stair The Lapeyre Alternating Tread Stair features superior product design that provides unmatched quality and innovations.
• Tread design with greater tread depth than vertical ladders or ship's ladders. • Cushioned central stringer that eliminates the possibility of hitting the nosing of a tread.
OPTIONS
TYPE ANGLES HEIGHTS HANDRAIL FINISHES
CARBON STEEL
STAIRS
56° 36" to 240"Standard – 36"-240"Optional – 55"-240"Flush – 55"-240"
• Safety Yellow Powder Coat • Gray Primer Powder Coat • Iron Gray Powder Coat • Choice of 180 Powder
Coat Colors• Hot Dip Galvanized
68° 42" to 240"Standard – 42"-240"Optional – 55"-240"Flush – 55"-240"
TYPE ANGLES HEIGHTS HANDRAIL FINISHES
STAINLESS STEEL
STAIRS
56° 36" to 240"Standard – 36"-240"Optional – 55"-240"Flush – 55"-240"
• Natural Finish
68° 42" to 240"Standard – 42"-240"Optional – 55"-240"Flush – 55"-240"
TYPE ANGLES HEIGHTS HANDRAIL FINISHES
ALUMINUM STAIRS 68° 24" to 216" Standard – 24"-216"
Optional – 55"-216" • Natural Finish
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Alternating Tread Stair Safety GatesCustom fit safety gates attach to the handrails or platform at the top of the alternating tread stairs. The dimensions and connections form a perfect fit, enabling the gate to swing 180 degrees in either direction.
SPECIFICATIONSDimensions Gate Width: 18"
Overall Vertical Height: 30¼"
Connections Mounting Bracket: PS DOORS standard, exclusive Universal Pivot Clamp Bracket to fit railings up to 2" OD
Hinge Plate: Mounting holes for reversible swing adjustment
Hinge Springs: Torsion type, stainless steel. Provide two (2) springs per gate, housed within hinge pivot.
Materials Carbon Steel
Gate Arm: Formed 1¼" square, 11 gauge steel tubing with center rail
Finishes: On all exposed surfaces. Choose from options below.
• Powder Coat. Fasteners to be zinc plated. Safety Yellow, Grey Primer, Special Color
• Hot Dip Galvanized. Fasteners to be zinc plated.
Stainless Steel: Grade 304, mill finish, acid washed and rinsed after fabrication, interfering welds are ground, not polished. Fasteners to be stainless steel.
Gate Operation Allows for 180° travel. Gate swing is reversible by repositioning Gate Hoop on Hinge Plate.
Shipping WeightModel Number FinishLSG-3-18-GAL Hot Dip GalvanizedLSG-3-18-PCY Yellow Powder CoatLSG-3-18-PMD Gray Primed Powder CoatLSG-3-18-SPEC Choice of Powder CoatLSG-3-18-SST Stainless Steel
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Alternating Tread Stair Approved Building Codes and Approval Letters
The following condensed codes or proposals address the use of alternating tread stairs in certain applications. The codes themselves and/or local code officials should be consulted for specific requirements.
U.S. FEDERAL OSHA
INTERNATIONAL BUILDING CODE
U.S. COAST GUARD
CANADIAN MINISTRY OF HOUSING
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Welded Egress StairShipped and ready for installation, Lapeyre Stair’s pre-manufactured egress stair systems offer a simplistic design approach with pre-engineered landing, stringer, and railing components to meet applicable building codes. These stairs, with in-house detailing and engineering, reduce the architect’s and engineer’s design and detailing burden. This approach shortens design time, eliminates RFIs and late deliveries, and prevents installation errors.
OPTIONSRailOur stairs come with both guardrails and handrails that are designed and manufactured to meet each project's height, space, code, and clearance. The guardrails are a minimum of 42" and the handrails are 30"-38", depending on your code and preference.
Tread • Concrete Pan • Smooth plate or metal pan for various tread types, including: • Bar Grate • Wood • Diamond Plate • Precast Concrete • Grip Tread • Non-slip Aggregate
• Precast Terrazzo
Stringer • Steel Plate • Steel Channel
Finish • Red-oxide Primed • Hot Dip Galvanized
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Concrete Pan Treads, Channel Stringer, Vertical Bar Pickets
Picket Rail Wire Mesh Panel Standard Industrial Rail
Grip Strut
Bar Grate
Diamond
Plate Stringer with Side Mounted Rail Channel Stringer with Top Mounted Rail
Custom Panel
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Bolted StairLapeyre Stair’s unique bolted egress stair systems allow for easy on-site assembly, eliminating the need for certified welders. Since the bolted stair systems are shipped completely unassembled, they reduce shipping costs and are the simplest and most cost-effective stair solutions available. They do not require expensive installation equipment and they can be assembled within compact spaces.
Lapeyre Stair uses the most progressive in-house engineering and design computer systems, allowing customers to quickly receive pricing and project drawings over the phone.
Stair Model 01AA / 02AA • Model 01AA is for stairs up to 12' and the Model 02AA is designed for stairs
12'-20' in height • Stair type/applications include industrial egress stairs, OSHA fixed stairs,
equipment and mezzanine access stairs, and secondary access stairs • Stringers constructed from 10' or 12' channel depending on height and angle • Four tread surface options and several tread widths • Stair rails constructed of 1½" O.D. tubing with adjustable baluster spacing and
rail height to meet code and requirements • Variety of finishes to suit numerous facility and environmental needs
Stair Model 01AA is designed around the following building codes. Stair Model 02AA only complies with OSHA, as it exceeds the maximum stair height of 12' under the building codes. • OSHA • UBC Industrial • SBCCI Industrial • NFPA Industrial • BOCA • Cal-OSHA
DIMENSIONS Minimum* Maximum*
Stair Height 18" 144"
Stair Height OSHA only 18" 240"
Stair Angle up to 10'3" 25° 50°
Stair Angle above 10'4" 29° 50°
Riser Height 4" 10"
Stair Rail Height 30" 43"
Baluster Spacing (Spherical Clearance) 3.75" 36"
Tread Width (Inside Stair Width) 22" 48"
* Varies by Building Code. Your minimum/maximum requirements may vary. Check local building codes.
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Stair Model 03AA / 04AAStair Models 03AA and 04AA meet the requirements of IBC's industrial stair, as well as most commercial metal stair and primary egress needs. These models are best suited for renovations where installation space is limited, in exterior applications, free-standing towers, and for self-installations where certified welders are not available. • Stair type/applications include
commercial egress stairs, industrial secondary access stairs, closed risers, accessible commercial egress stairs, and commercial residential egress stairs
• Stringers constructed from 12" channel • Three tread surface options and two standard tread widths with custom widths
available • Guardrails, handrails and balusters constructed of 1½" O.D. tubing. The guardrail
height is fixed at 42" and the handrail length is adjustable within the range allowed by code.
• Variety of finishes to match the facility and environmental needs
Both Stair Models 03AA and 04AA are designed around the following building codes. • IBC / International Building Code • ADA / American Disabilities Act • NFPA / Life Safety Code
DIMENSIONS Minimum* Maximum*
Stair Height 18" 144"
Stair Angle up to 10'3" 25° 50°
Riser Height 5" 7"
Projected Tread Depth (Tread Run) 10" 11.5"
Top Landing Depth 4" 4"
Top Reveal 1" 1.5"
Front Reveal 0.25" 1.5"
Guardrail Height 42" 42"
Handrail Height 30" 38"
Baluster Spacing (Spherical Clearance) 3.75" 21"
Tread Width (Inside Stair Width) 36" 60"
* Varies by Building Code. Your minimum/maximum requirements may vary. Check local building codes.
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OPTIONSBolted Stair Guardrail • Guardrails come standard on both sides of the stair unless otherwise specified. • Guardrails may be eliminated on stairs placed against a wall. Stairs without
guardrails will feature a narrower stringer. • Guardrails extend 42" above the tread nosing and end at the top and bottom of
the stair. Handrails are available between 30" and 38" above tread nosing. • Commercial stairs have balusters spaced as such that nothing larger than a 4"
sphere can pass between them. • Stairs ordered under the IBC Industrial Code have balusters spaced so that nothing
larger than a 21" sphere can pass between them. • Filler panels can be custom painted with a finish to either match the stairs or a
different color. • Guardrails designed to withstand a 200 lb load applied in any direction.
Handrail End Terminations – BottomExtended Box to Guard Handrail
Box to Guard Handrail
Extended Wall Mounted Handrail
Wall Mounted Handrail
Handrail End Terminations – TopWall Mounted Handrail Guardrail Mounted Handrail
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Model 03/04 IBC IndustrialModel 03/04 IBC Commercial
Model 01/02 OSHA
Model 03/04 IBC Commercial Filler Panel
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Model 01/02 Tread
TREAD TYPEOpen
DiamondTreadplate
OpenGripTread
OpenConcrete
Pan
OpenBar
Grating
Available Widths
24", 30", 36", 48" X X X X
Custom Widths, up to 48" X X
Available Depths
9½" X
9¾" X X X
1015⁄16" X X X
117⁄8" X
12¹⁄8" X X X
Model 03/04 Tread
TREAD TYPE DiamondTreadplate
SmoothTreadplate
ConcretePan
Available Widths
36"-48" X X X
Custom Widths X X X
Smooth tread has the same features as the diamond tread with the exception of the raised diamond surface. The smooth surface is designed to allow you to adhere your own surface material (carpeting, non-slip flooring surface, or other flooring material) directly to the stair. Custom width requests may be accommodated.
AssemblyStairs ship as kits for easy field installation. All assembly hardware is provided.
Back-panOptional. Most open-riser stairs are equipped with cross bracing connecting the two stringers behind the treads. You may chose to replace the standard cross bracing with a set of catch-pans that will prevent any object or dirt from falling to the ground below.
Grip Strut Bar GrateDiamond
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Platform SystemsLapeyre Stair offers a variety of platforms, metal stairs, legs, and supports designed to work together. Platform design varies depending upon the stair application, the size, or material requirements. Once Lapeyre Stair designers receive your requirement specifications, they create a CAD model and provide layout drawings included in the cost of the stair.
Formed Single Piece PlatformsUsed for Alternating Tread and Model 01AA / 02AA stairs for industrial applications. Cannot be used with Models 03AA / 04AA.
Drop-in Panel PlatformsDesigned to be used with commercial stairs, this platform design may be used with most of the stair designs. This allows for greater flexibility of size and layout configurations.
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Equipment Access System with Formed Platform In-plant Office System with Drop-in Panel Platforms
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Formed Platform SystemsCompatible with the Alternating Tread Stair and the Model 01AA/02AA stairs, this platform is a single piece of metal, cut and formed to create the walking surface, the kick plates, and the mounting plates for the stairs. Handrails bolt from underneath the plate. This platform is ideal for crossover systems, intermediate landings, exit landings, and equipment access platforms.
OPTIONSMATERIAL FINISH
CARBON STEEL
• Safety Yellow Powder Coat • Gray Primer Powder Coat • Iron Gray Powder Coat • Choice of 180 Powder Coat Colors• Hot Dip Galvanized
STAINLESS STEEL • Natural Finish
ALUMINUM • Natural Finish
Angles • The handrails are bent so that the rail of the platform conforms to the rail of the
stair. For this reason, we will ask the angle of the stair, if the platform is to be used with an alternating tread stair.
Crossovers • Standard sizes are 24" x 24" to 24" x 120" in increments of 6"
Landings and Platforms • 24" x 38" Intermediate Landing • 30" x 38" 90° Right/Left Turn Intermediate • 30" x 60" 180° Right/Left Turn Switchback Intermediate • 30" x 30" Right/Left Turn or Forward Exit Landing • 38" x 38" Right/Left Turn or Forward Exit Landing
Work Platforms • 24" x 36" Work Platform
Custom Sizes Available Upon RequestTypically, the limits are 54" wide and 144" long, but our designers can work on a modified design or sections that bolt together to create larger platforms. Another option for larger platforms is our drop-in panel platform.
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Drop-in Panel Platform Systems
Compatible with all of our bolted stairs and alternating tread stairs, this platform design can best be described in a single word as flexible. It is ideal for commercial egress stair applications, but just as well suited for the industrial stair and steel alternating tread stair. Without the size limitations of the single formed platforms, this is the model our designers go to when designing many of the more complicated stair systems. The drop-in panel platform is the only platform that will work with our Model 03AA and 04AA stair models.
Some Possible Uses • Exit Landings • Intermediate Landings • Switchback Landings • Work Platforms • Crossover Systems (see special note about clearance, below)*
OPTIONSMATERIAL FINISH DROP-IN PANEL
CARBON STEEL
• Safety Yellow Powder Coat • Gray Primer Powder Coat • Iron Gray Powder Coat • Choice of 180 Powder Coat Colors• Hot Dip Galvanized
• ¼" Diamond Treadplate• Bar Grating• Grip Tread Material, similar to our Grip
Treads on the Model 01AA/02AA stairs.• Concrete Pan – ready for site-poured
concrete. Constructed of 11 ga (0.120) Diamond Plate
• Smooth Plate – 11 ga (0.120) plate that you can apply your material (turf/carpeting/etc.) to using adhesive. Lapeyre Stair does not provide the surface material or adhesive.
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Design Features • Z-channel framing, utilizing the same design as the stringers on our Model 01AA
– 04AA stairs. The balusters of the guardrail slide through the frame and attach using provided spacers and bolts just as they do on the stairs.
• There are very few size limitations. The modular design and drop-in sections allow for much larger platforms than our single piece formed platforms.
• Panels can drop in either parallel or perpendicular with the framing, and attach to 3" C-Channel supports.
• Continuous handrails from stair to platform are available. • Available with either balustered or filler panel guardrails.
*Note on using this platform design for Crossover SystemsThe framing on this platform is 8" high, the stair mounts to the top of the 8". Therefore, in calculating the stair height for a crossover, you will need to add 8" to provide the clearance you will need under the crossover system.
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Guardrail Baluster to Platform Connection
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Leg SupportsOur legs and platform supports are pre-engineered, yet we offer a great deal of flexibility. Our computerized system calculates the required leg size for your stair and platform configuration, and for non-standard designs, our design team works with the customer service representative to determine the best scenario for your application.
OPTIONSMaterials and Finishes • Carbon Steel • Stainless Steel • Aluminum
Finishes • Safety Yellow Powder Coat • Iron Gray Powder Coat • Gray Primer Powder Coat • Hot Dip Galvanized • Choice of 180 colors Powder Coat
Design FeaturesLegs are constructed out of either 3" or 4" square tubing, depending on the strength requirements of your stair height and platform size. Most units are designed for four legs, but our engineers will review conditions where fewer or more legs are required. For taller applications, bracing is added to the legs for additional strength, with the need for this determined both by our computer system and our design team.
ConnectionsThe legs typically connect at the ³⁄8" thick base plate at the bottom using 4 bolts, and at the top ¼" base plate to the under side of the platform using 3 bolts. For multi-level stair systems and towers, the legs can run on the outside of the platform and attach from the side.
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³⁄8" Base Plate ¼" Base Plate to Platform Side Mounted Leg
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Bracing Kit for Crossover SystemsLapeyre Stair has always recommended sway bracing to maximize the stability of our Crossover Systems. Designed for Crossover Systems with stairs up to 8' tall and platforms up to 8' long, our convenient Crossover Bracing Kit includes:
Brackets: Stainless Steel upper and lower connections, plus hardware
Custom Brace Tubing: Available in carbon steel, stainless steel, and aluminum. Tubing length will vary according to your Crossover configuration.
Critical DimensionsOnce fabricated, the bracing only allows for approximately 1" of adjustment during installation to account for minor inaccuracies in floor anchor drilling. To determine the correct brace specifications for your Crossover System, the following information is required when you place your order. • Basic dimensions of obstacles under and near the Crossover System. • Optimal Spread Angle: Spread angle range is 0 to 20 degrees for 56-degree
angle stairs and 0 to 10 degrees for 68 degree angle stairs. • Optimal Brace Angle: Brace angle range is 20 to 30 degrees (from vertical
plane) for all configurations.
Our customer service representatives can help you determine your optimal brace and spread angles based on Crossover stair height, platform length, and obstacle dimensions.
Price and WeightMaterial/Finish Shipping Weight
Carbon Steel Painted 55 lbsCarbon Steel Galvanized 55 lbsStainless Steel 55 lbsAluminum 50 lbs
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Alternating Tread Stair Technical and Dimensional Data
Dimensional/ Technical Data 56° Steel 68° Steel 68° Aluminum
Minimum Height, Floor to Floor
36" (91.44 cm) 42" (106.68 cm) 24" (60.96 cm)
Maximum Height, Floor to Floor **
240" (609.60 cm) 240" (609.60cm) 216" (548.64 cm)
Overall Height, (Standard Handrails)
H + 42" (H + 106.68 cm)
H + 42" (H + 106.68 cm)
H + 42" (H + 106.68 cm)
Overall Height, (Optional Handrail)
H + 5¾" (H + 14.61 cm)
H + 5¾" (H + 14.61 cm)
H + 3¾" (H + 9.53 cm)
Overall Width 23" (58.42 cm) 23" (58.42 cm) 23" (58.42 cm)
Run (within +/- 1" [25.4 cm])
0.675 (H-6.42") + 9.5" 0.675(H-16.301 cm) +
24.13 cm
0.404 (H-7.517") + 9.5" 0.404 (H-19.093 cm) +
24.13 cm
0.404 (H-7.175") + 9.5" 0.404 (H-18.225 cm) +
24.13 cm
Recommended Minimum Floor
Opening, Width
35" (88.90 cm) 35" (88.90 cm) 35" (88.90 cm)
Recommended Minimum Floor
Opening, Length
70" (177.8 cm) + ²⁄3 Floor Thickness
62" (157.48 cm) + ²⁄5 Floor Thickness
62" (157.48 cm) + ²⁄5 Floor Thickness
Minimum Riser Height
6.417" (16.299 cm) 7.517" (19.093 cm) 7.175" (18.225 cm)
Maximum Riser Height
7.500" (19.558 cm) 9.020" (22.911 cm) 9.566" (24.298 cm)
Approximate Net Weight
1.428(H) + 32 lbs(H <120")
1.688(H) + 32 lbs(H >120")
0.255(H) + 14.52 kg
(H <3.05m) 0.301(H) + 15.42 kg
(H >3.05m)
1.332(H) + 21 lbs(H <144")
1.488(H) + 31 lbs(H >144")
0.238(H) + 9.53 kg
(H <3.66m) 0.266(H) + 14.06 kg
(H >3.66m)
.690 (H) + 20 lbs
0.1232 (H) + 9.07 kg
H = height from upper finished floor to lower finished floor in inches (centimeters). The above formulas are for estimating purposes and are subject to change without notice. For more complete data, call for a complimentary dimensional print.
**To reduce vibration, stairs in excess of 15' (4.57 m) may require customer supplied sway bracing. For vertical heights in excess of 15' (4.57 m), Lapeyre Stair, Inc. recommends an intermediate platform with two stairs of equal height. (Customer supplied bracing required.)
CSI format specifications available for download on the website.
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Alternating Tread Stair Material Specifications
Stair Part Carbon Steel Stainless Steel Aluminum
Landings and Foot Stampings/ Castings
11 Gauge AISI 1010/15 per ASTM A569 / A1011 grade 36 (or higher)
11 Gauge AISI 304 SS Aluminum Alloy F356F
Treads 13 Gauge AISI 1010/15 HRPO per ASTM A569 / A1011 grade 36 (or higher)
13 Gauge AISI 304 SS
Guards/Handrails
1½" OD x 0.095" AISI 1010/15 CS per ASTM A569/A1011 cold drawn, fully annealed tube per ASTM A513 grade 1008 or higher As-welded tubing or ASTM A500 Grade B
1½" OD x 0.065" 304 SS cold drawn, fully annealed tube per ASTM A269 seamless or ASTM A554 welded
Aluminum Alloy 6063-T4
1½" x ¹⁄8" Tube
Stringers 2" x 1¾" x 11 Gauge U section; AISI 1010/15 per ASTM A569/A1011 grade 36 (or higher) for 56 degree stairs under 10 vertical feet and for 68 degree stairs under 12 vertical feet.
3" x 1¾" x 11 Gauge U section; AISI 1010/15 per ASTM A569/A1011 grade 36 or higher for 56 degree stairs over 10 vertical feet and for 68 degree stairs over 12 vertical feet.
2" x 1¾" x 11 Gauge U section; AISI 304 SS for 56 degree stairs under 10 vertical feet and for 68 degree stairs under 12 vertical feet.
3" x 1¾" x 11 Gauge U section; AISI 304 SS 56 degree for stairs over 10 vertical feet and for 68 degree stairs over 12 vertical feet.
Aluminum Alloy 6063-T52
1¾" x 4" x ¹⁄8" Box Shape
Fasteners Bolts: Handrail to stringer; Hex Head SAE J429 Grade 5, ½" x 13 TPI Landing to structure; Carriage Head A307 or Hex Head SAE J429 Grade 5, ½" x 13 TPI
Nuts: ASTM A563 Grade 0
Washers: ASTM F844
Bolts: Handrail to stringer; Hex Head SAE J429 Grade 5, ½" x 13 TPI Landing to structure; Carriage Head A307 or Hex Head SAE J429 Grade 5, ½" x 13 TPI
Nuts: ASTM A563 Grade 0
Washers: ASTM F844
Miscellaneous Rubber Spine: Hollow Neoprene Strip
Rubber Foot Divider: Solid Neoprene
Rubber Spine: Hollow Neoprene Strip
Rubber Foot Divider: Solid Neoprene
Rubber Spine: Hollow Neoprene Strip
SPECIFICATIO
NS
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Horizontal Projections for Every 6" HeightThis table shows the amount of floor space used for each stair. Lapeyre Stair, Inc. recommends the 56° stair, providing floor space is available.
VERTICAL RISE HORIZONTAL RUNIN
FEETIN
INCHES56 DEGREE
STEEL68 DEGREE
STEEL68 DEGREE ALUMINUM
2.0 24 N/A N/A 15.962.5 30 N/A N/A 18.593.0 36 28.93 N/A 20.413.5 42 33.11 23.08 23.084.0 48 37.25 25.66 25.664.5 54 41.37 28.20 28.205.0 60 44.91 30.28 30.715.5 66 49.07 32.83 33.206.0 72 53.21 35.36 35.366.5 78 57.33 37.86 37.867.0 84 61.44 40.04 40.357.5 90 65.15 42.56 42.568.0 96 69.27 45.05 45.058.5 102 73.39 47.28 47.549.0 108 77.49 49.78 50.029.5 114 81.59 52.27 52.2710.0 120 85.38 54.75 54.7510.5 126 89.49 57.01 57.2311.0 132 93.59 59.50 59.6911.5 138 97.68 61.98 61.9812.0 144 101.77 64.45 64.4512.5 150 105.62 66.74 66.9113.0 156 109.71 69.21 69.3813.5 162 113.80 71.68 71.6814.0 168 117.89 73.98 74.1414.5 174 121.97 76.45 76.6115.0 180 125.85 78.92 78.9215.5 186 129.94 81.38 81.3816.0 192 134.02 83.70 83.3016.5 198 138.11 86.16 86.3017.0 204 142.19 88.62 88.6217.5 210 146.09 91.08 91.0818.0 216 150.17 93.41 93.5418.5 222 154.25 95.87 N/A19.0 228 158.33 98.33 N/A19.5 234 162.40 100.78 N/A20.0 240 166.32 103.12 N/A
*56° angle recommended for comfort
SPEC
IFIC
ATI
ON
S
27
Building Code PolicyAs Lapeyre Stair expands its product line to provide you with more options to meet your access requirements, we are striving to incorporate into our engineering design the flexibility and interchangeability of components needed to selectively meet the requirements of the various laws, standards, and building codes in operation in all parts of the world.
We also strive to provide you with real value in your access device purchase. To achieve that goal, we will endeavor to provide you with design alternatives that meet your local requirements. Because of the infinite complexity of knowledge required to understand the diverse requirements of all local political and geographic regions, we have decided to offer products that, in general, can be selectively configured to meet the requirements of several of the primary United States, and international laws, standards, and building codes as described in their current or most recently issued editions.
And although we cannot guarantee that a particular stair configuration will be accepted by your local authorities, we stand at the ready to quickly provide you with detailed drawings of our access devices, prior to your purchase, that you may submit for compliance approval.
Your local architect, local building code officials, and your local codes are your best source of compliance specifications/recommendations at your location.
All capacity ratings for Lapeyre Stair conventional tread stairs are stated in terms of the live load capacity of the stair system with a given safety factor. Local wind, snow, and seismic rating requirements are not included in this capacity rating. Local requirements for these loadings, where applicable, must be considered by your local architectural or engineering professional.
BU
ILDIN
G CO
DES
Lapeyre Stair, Inc. New Orleans, LA 70150
Telephone: 504-733-6009Toll Free: 800-535-7631
FAX: 504-733-4393www.lapeyrestair.com
L apeyre Stair began manufacturing alternating tread stairs in 1981 and has since expanded its product line to supply customers with customized stair systems that meet their specific needs.
Today, we design and fabricate:
• Alternating Tread Stairs• Stair Systems – industrial
and commercial metal stairs• Work Platforms for aerial
access to equipment• Accessories – including
suppport legs for platform systems, and safety gates
TM
© 2013 Lapeyre Stair, Inc. 52463_ENGLISH
