Is the Alternating Tread Stair Safe?
How Safe are Ladders?
Comparing the Alternating Tread Stair
Ever since the Original Lapeyre Alternating Tread Stair set the standard for industrial access and efficiency in 1981, our commitment to improving workplace safety and compliance continues to lead the industry.
A Virginia Tech study concluded that alternating tread stairs have a clear advantage.
Ladders are consistently one of OSHA's top ten most cited violations for general industry.Â
What do the reports conclude?
Ships Ladders Have Issues with Balance
The Lapeyre Alternating Tread Stair is superior to the traditional ship’s ladder with respect to balance and a tendency to rotate away or towards the ladder/stairs. – Saturn Ergonomics Consulting, LLC, Auburn University, September, 2022.
Ships Ladders Cause Missteps
“In summary, the users’ subjective data and the objectively measured frequency of missteps consistenly and clearly demonstrate the comfort and safety advantage of the Lapeyre Alternating Tread Stair over the conventional ship’s ladder.” – Huan Factors Engineering Laboratory, Virginia Polytechnic Institute and State University, July 1988.
Caged Ladders do not Protect Workers
Studies have shown that cages do not protect workers. Employers should consider replacing caged ladders with alternative means of fall protection. Optimally, employers should consider replacing ladders with stairways whenever possible.
Even OSHA has said it’s Time to Eliminate Ladders
In a 2017 update, OSHA stated, “Employers should provide stairs for regular or routine operational use including access to equipment.”
Still not sure? Contact a stair expert to learn about testing one in your facility.
Cited Sources
Still Using Ladders?
Don't just take our word for it
Our standard product designs incorporate interchangeable components that are pre-engineered to comply with applicable codes and standards.
Testimonials
Alternating Tread Stair Specifications
To ensure complete compliance with OSHA and IBC standards, alternating tread stairs are built to exact, vertical heights measured from where the top landing of the stair attaches to the upper, finished floor to the lower, finished floor where the foot of the stair will be secured.