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General Information:
Aluminum Alternating Tread Stair is an alternative to a traditional ships stair. Compared to conventional stair treads, these stairs allow the user to descend face-forward giving a clear view of the floor below. Designed with tubular side rails to provide maximum structural integrity while keeping the overall stair weight to a minimum. These stairs are built to project conditions and shipped to the job site completely assembled ready for installation. For alternating tread ladders accessing a roof, consider combining extend a rail ladder 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.
Standard Features:
All components shall be aluminum alloy 6000 (6005-T5 typical)
Stringers are 3" x 2" x 1/8" aluminum tubular siderails and a 10" x 1/4" center stringer
Treads are aluminum bar grating
Available in either 56° or 68° angle of incline
1000 pound load capacity
Optional 42" handrail extension (walk-thru) for accessing platform, landings, or other elevated work surfaces. Width of 24" for roof hatch access, 28" for walk-thru models.
Mill Finish is standard; anodized or powder coated are optional finishes
