Alternating tread step design offers a shorter span than traditional steps.
Alternating tread stair cad details.
Most building codes will allow this type of stair into lofts of 250 sf or smaller.
The unused half tread is removed to provide more tread depth for improved safety and comfort.
Here are some suggestions about how to build this type of design.
Precision s aluminum alternating tread stair is an alternative to a traditional ships stair.
Stair slope of either 56 or 68 degrees requires a smaller overall footprint than a standard stair.
Baked in powder coat finish for added toughness.
Architectural resources and product information for stair treads including cad drawings specs bim 3d models brochures and more free to download.
Manufacturers of alternating tread stairs browse companies that make alternating tread stairs and view and download their free cad details revit bim files specifications and other content relating to alternating tread stairs as well as other product information formated for the architectural community.
Welded steel construction with bolt on handrails.
Sketch problem 6 8 04 this type of stair saves lots of space and can have standard rise and run dimensions to meet code.
Technical resources get measuring guidelines product dimensions and connection details for alternating tread stairs.
However it is quite steep and a bit scary to go down head first most people turn around like you would on a ladder.
These stairs allow the user to descend face forward giving a clear view of the floor below.
Product information learn more about the benefits of using alternating tread stairs.