Specifications include, but are not limited to: 1. 5’ X 10’ (Usable Dimensions 60” X 120”) Composed of two 5’ X 5’ Platforms 2. Engineering: • Platforms sections shall be designed to 2018 International Residential Code (IRC) with a minimum uniform live load of 40 pounds per square foot (PSF) and concentrated minimum vertical load of 300 pounds. 3. Material: • Platform sections shall be constructed using 6000 series aluminum alloy with 6061-T6 or 6005-T5 used for structural components. 4. Design and Fabrication: • Platform surface is to be continuous, that is no gaps greater than ¼”, and shall have an extruded slip resistant surface, knurled to make slip resistance bi-directional. • Platforms shall be constructed of interlocking 1.125" x 6" treads welded to side rails. • Platforms shall be designed for variable height adjustment. 5. Weight: 163.2 pounds without handrails 6. Weight Capacity: 1,000 pounds minimum. 7. Outer Dimensions: 65.5” X 131” 8. Width to Outside of Support Feet: 65.75” X 131.5” 9. Includes five 5’ Guards 10. Includes five 5’ X 1.5” X 2” Barriers/Curbs 11. Includes step closure for 5’ PF with 56” step 12. Upper Handrail Height: 34” to 38” SUPPORT LEG ASSEMBLIES 1. Length: 60” to 68” 2. Engineering: • All support assemblies shall be designed to support the steps and platform sections as specified. • Support assemblies shall be designed to hold the support tubes and legs vertical in all locations. • Support tubes and legs shall have a minimum wall thickness of .094”. 3. Materials: • Support assemblies shall be constructed of aluminum alloys 60D5-T5 or 6061-T6 with polymer feet. • All fasteners shall be grade 5 strength or higher with zinc plated or zinc chromate finish.
