Building construction Archives

Alternating Tread Stairs (Lapeyre Stairs) 0 (0)

Access systems, Architectural elements, Building code, Building construction, Ergonomic design, Industrial safety equipment, Space-saving architecture, Staircases / alternating tread device, alternating tread stairs, architectural ergonomics, building safety design, compact staircase design, human factors engineering, industrial stair systems, International Residential Code, Lapeyre stairs, loft access, mezzanine access, ship stairs, space saver stairs, steep stairs, vertical circulation systems

Alternating tread stairs—also known as alternating tread devices (ATDs) or, commercially, “Lapeyre stairs”—are steep stair systems designed to occupy significantly less horizontal space than conventional staircases. They achieve this compression by staggering the tread surfaces so that each step supports only one foot, alternating left and right. They are not a novelty. They are a […]

Alternating Tread Stairs (Lapeyre Stairs) 0 (0) Read More »