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Aluminum Alternating Tread Ladder To Hatch

Unique ref.: precision-ladders-at-1
Brand: Precision Ladders, LLC
Product family: Stairs
Product group: Alternating Tread Ladder
Date of publishing: 2018-12-10
Edition number: 2
Type: Object (single object)
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Alternating Tread Ladders

Alternating Tread ladders, compared to conventional tread ladders, allow the user to walk down the ladder face-forward thus giving the user a clear view of the floor below. Precision Ladders’ AT series of aluminum Alternating Tread ladders were designed using tubular siderails to provide maximum structural integrity, yet keeping ladder weight to a minimum. As with all of our ladders and stairways, Alternating Tread ladders are built to project conditions and shipped to the job site completely fabricated and ready for installation. For Alternating Tread ladders accessing a roof, consider combining Precision’s Extend-A-Rail ladder safety post, roof hatch, and guard rail to protect the hatch opening. This gives architects and contractors the option of a complete roof access system from a single source.

P. O Box 2279
Morristown, TN 37816-2279
Phone: (800) 225-7814
Fax: (423) 586-2091
Email: info@precisionladders.com

SECTION 05 51 33.23
ALTERNATING TREAD LADDERS
PART 1 GENERAL
1.1 SECTION INCLUDES
A. Aluminum Alternating Tread Ladders.
1.2 RELATED SECTIONS
A. Section 05 12 00 - Structural Steel Framing: Roof structure and opening support.
B. Section 05 55 00 - Metal Stair Treads and Nosings: Miscellaneous metal supports.
C. Section 06 10 00 - Rough Carpentry: Roof framing and opening support.
D. Section 05 12 00 - Structural Steel Framing: Roof framing and support.
E. Section 07 42 00 - Wall Panels: Roof curb flashing.
1.3 SUBMITTALS
A. Submit under provisions of Section 01 30 00.
B. Manufacturer's data sheets on each product to be used, including:
1. Preparation instructions and recommendations.
2. Storage and handling requirements and recommendations.
3. Installation methods.
C. Shop Drawings for Ladders:
1. Plan and section of ladder installation.
1.4 DELIVERY, STORAGE, AND HANDLING
A. Store products in manufacturer's unopened packaging until ready for installation.
B. Store ladder until installation inside under cover. If stored outside, under a tarp or suitable cover.
1.5 WARRANTY
A. Limited Warranty: One year against defective material and workmanship, covering parts only, no labor or freight. Defective parts, if deemed so by the manufacturer, will be replaced at no charge, freight excluded, upon inspection at manufacturer's plant which warrants same.
PART 2 PRODUCTS
2.1 MANUFACTURERS
A. Acceptable Manufacturer: Precision Ladders, LLC, which is located at: P. O. Box 2279 ; Morristown, TN 37816-2279; Toll Free Tel: 800-225-7814; Tel: 423-586-2265; Fax: 423-586-2091; Web: www.PrecisionLadders.com
B. Requests for substitutions will be considered in accordance with provisions of Section 01 60 00.
2.2 ALUMINUM ALTERNATING TREAD LADDER
A. Aluminum Alternating Tread Ladder and Components: Ladder, mounting brackets and handrails on both sides.
1. Model: Model AT Aluminum Alternating Tread Ladder as manufactured by Precision Ladders, LLC.
2. Capacity: Unit shall support a 1000 lb (227 kg) total load without failure.
3. Ladder Side Stringers: 3 inch by 2 inch by 1/8 inch (76 mm by 51 mm by 3 mm) extruded 6005-T5 aluminum tubing. Pitch: 56 or 68 degrees.
4. Ladder Center Stringer: 10 inch by 1/4 inch (254 mm by 6 mm) extruded 6005-T5 aluminum flat bar. Note: Neoprene trim adhered to front edge of center stringer to protect climber.
5. Ladder Treads: 1 inch aluminum Bar Grating, 9 13/16” (249 mm) deep by 9 7/8”(250 mm) wide on hatch-access models (11 7/8” (302 mm) wide on Walk-thru models).
6. Ladder Mounting Brackets: 5 inch by 1/4 inch (127 mm by 6 mm) aluminum flat bar
7. Handrails: 1-1/4 inches (32 mm) Schedule 40, 6005-T5 aluminum pipe provided with internal aluminum fittings.
2.3 FABRICATION
A. Completely fabricate ladder ready for installation before shipment to the site.
B. Completely fabricate handrail components ready for field assembly to ladder before shipment to site.
PART 3 EXECUTION
3.1 EXAMINATION
A. If substrate preparation is the responsibility of another installer, notify Architect of unsatisfactory preparation before proceeding.
B. Examine materials upon arrival at site. Notify the carrier and manufacturer of any damage.
3.2 INSTALLATION
A. Install in accordance with manufacturer's instructions.
3.3 PROTECTION
A. Protect installed products until completion of project.
B. Touch-up, repair or replace damaged products before Substantial Completion.

END OF SECTION


Material main: Aluminium
Material secondary:
Designed in: United States
Manufactured in: United States

BIMobject Category: Construction - Stairs
IFC classification: Stair
UNSPSC name: Stair parts
UNSPSC code: 30161908
Uniclass 1.4 Code: L4322
Uniclass 1.4 Description: Stairs
Uniclass 2.0 Code: EE-30-10
Uniclass 2.0 Description: On-Ground Stairs
Uniclass 2015 Code: EF_35_10
Uniclass 2015 Description: Stairs
NBS Reference Code: 30-10
NBS Reference Description: On-Ground Stairs
CSI MasterFormat 2014 Code: 05 51 00
CSI MasterFormat 2014 Title: Metal Stairs
OmniClass Number: 23-17 23 17
OmniClass Title: Stairs
CSI UniFormat II Code: C2010
CSI UniFormat II Title: Stair Construction
This product is available in:
North America
  • Canada
  • United States

BIMobject SEEK Properties

Construction - Stairs

Name Value
Height 240
Material Aluminum
Width 24

Precision Ladders, LLC

Properties

Name Value
Rung Spacing 8" to 9-1/2"

All BIM objects are real products from real manufacturers confirmed and approved