Alternating Tread Stair

The product that began Lapeyre Stair, and is still widely used today, the Lapeyre^® Alternating Tread Stair features a unique tread design which provides greater tread depth than vertical ladders or ship's ladders.

The alternating tread stair:

• Allows for comfortable face forward descents at steep angles.
• Includes close fitting handrails which provide support.
• Has a cushioned central stringer which virtually eliminates the possibility of hitting the nosing of a tread.

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. 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 becomes worse. In contrast, the Lapeyre stair removes the unused half of each tread, allowing the foot to reach the next read in a straight, directly line, providing more usable tread depth.

Alternating Tread Stairs are available in powder-coated or galvanized carbon steel, stainless steel, and aluminum, as well as in a mobile version. Common applications include: mezzanine access, roof tops or roof hatches, equipment access, conveyors, catwalks, storage tanks, crossover systems, or just about anywhere you would use a fixed ladder or need steep stairs.