Alternating tread stairs
Carbon steel, stainless steel, and aluminum alternating tread stairs are an OSHA-compliant, space-saving solution when a standard stair is not feasible.
The alternating tread stair design

Standard stair
Each foot normally uses only about half of each tread, stepping out and over the unused section.

Ship stair
The unused half tread becomes an obstacle by reducing the usable depth of the tread below.

Alternating tread stair
The unused half tread is removed to provide more tread depth for improved safety and comfort.
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Stair slope of either 56 or 68 degrees requires a smaller overall footprint than a standard stair |
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Designed to be used as a stair with users facing the direction of travel when climbing up and down |
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Code-compliant handrails meet OSHA requirements for fall protection and improve ease of use |
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Built-in cushioned central stringer protects users and reduces the risk of trips and falls |
MAXIMUM SAFETY IN MINIMUM SPACE
The alternating tread stair design

Standard stair
Each foot normally uses only about half of each tread, stepping out and over the unused section.

Ship stair
The unused half tread becomes an obstacle by reducing the usable depth of the tread below.

Alternating tread stair
The unused half tread is removed to provide more tread depth for improved safety and comfort.

![]() |
Stair slope of either 56 or 68 degrees requires a smaller overall footprint than a standard stair |
![]() |
Designed to be used as a stair with users facing the direction of travel when climbing up and down |
![]() |
Code-compliant handrails meet OSHA requirements for fall protection and improve ease of use |
![]() |
Built-in cushioned central stringer protects users and reduces the risk of trips and falls |
MAXIMUM SAFETY, MINIMUM SPACE
Types of alternating tread stairs

Carbon steel, powder coat finish
✔ NEW! Optional non-slip finish
✔ Standard or custom colors
✔ 56 or 68 degree

Carbon steel, galvanized finish
✔ Ideal for outdoor use
✔ Hot dip galvanized finish
✔ 56 or 68 degree

Stainless steel, natural finish
✔ Easy to clean
✔ Grade 304 stainless steel
✔ 56 or 68 degree

Aluminum, natural finish
✔ Lightweight
✔ Resists corrosion
✔ 68 degree only
Types of alternating tread stairs

Carbon steel, powder coat finish
✔ Ideal for indoor use
✔ Standard or custom colors
✔ 56 or 68 degree

Carbon steel, galvanized finish
✔ Ideal for outdoor use
✔ Hot dip galvanized finish
✔ 56 or 68 degree

Stainless steel, natural finish
✔ Easy to clean
✔ Grade 304 stainless steel
✔ 56 or 68 degree

Aluminum, natural finish
✔ Lightweight
✔ Resists corrosion
✔ 68 degree only
Types of alternating tread stairs

Carbon steel, powder coat finish
✔ Ideal for indoor use
✔ Standard or custom colors
✔ 56 or 68 degree

Carbon steel, galvanized finish
✔ Ideal for outdoor use
✔ Hot dip galvanized finish
✔ 56 or 68 degree

Stainless steel, natural finish
✔ Easy to clean
✔ Grade 304 stainless steel
✔ 56 or 68 degree

Aluminum, natural finish
✔ Lightweight
✔ Resists corrosion
✔ 68 degree only
Types of alternating tread stairs

Carbon steel, powder coat finish
✔ Ideal for indoor use
✔ Standard or custom colors
✔ 56 or 68 degree

Carbon steel, galvanized finish
✔ Ideal for outdoor use
✔ Hot dip galvanized finish
✔ 56 or 68 degree

Stainless steel, natural finish
✔ Easy to clean
✔ Grade 304 stainless steel
✔ 56 or 68 degree

Aluminum, natural finish
✔ Lightweight
✔ Resists corrosion
✔ 68 degree only
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Customer testimonials
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Lapeyre Stair has been a great resource for our business. Their team has helped us design a safer, more cost-effective access and walkway system for our products. Their design expertise, response times, and expedited fabrication lead times have helped us meet demanding customer schedules while freeing up resources to focus on our core business of manufacturing world class water treatment systems. | „ | |
Ecologix Systems |


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We decided to switch to the alternating tread stair from caged ladders to access our equipment because it provides a safer, easier, and more efficient means of access to the equipment for our clients. The team at Lapeyre Stair has been great to work with. They are very responsive and their quick turnarounds on drawings and fabrication schedules have met the demands of our fast-paced projects. | „ | |
Silent Aire |



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We have used alternating tread stairs from Lapeyre Stair for years and are finding new places to install them all the time. They are safer and easier to climb than a ladder and, when you run out of room for a long set of stairs, they are a great alternative. Customer Service has always been great; they are very patient and helpful; and my orders are correct when they arrive and include all the parts. Alternating tread stairs are easy to install and assemble. I just measure the height of the platform and decide what degree I want. Customer Service quickly responds with a print for approval, we issue a PO, and the order is produced. |
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Vincent Incardona, Georgia Pacific |


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We extensively use alternating tread stairs from Lapeyre Stair instead of ladders in our plant because they are safer and easier to use. Working with Lapeyre Stair is easy and convenient. We just give them the height and the angle we need and they return with a drawings and quote. We ok the layout, provide a PO number, and the order arrives in two to three weeks. Lapeyre Stair is a pleasure to work with. | „ | |
Joe Steiner, General Mills |