Alternating tread ladder with platform.
Alternating tread stair dimensions.
Handrail graspability to be either type i or ii with a minimum 1 1 2 inch clearance from a wall.
Start with this and adjust the angle of the carriage from there.
Industrial stairway crossover footprint 2 industrial stairs connected by a platform.
Adjust the riser height to the space between floors.
Alternating tread stair quote.
Alternating tread ladder crossover 2 alternating tread ladders connected by a platform industrial stairway calculate space requirements at various heights and angles.
Installation instructions view step by step instructions on how to install alternating tread stairs.
Minimum tread width 22 in 56 cm minimum tread depth 9 5 in 24 cm maximum riser height 9 5 in 24 cm.
Handrail height to be placed a minimum 34 inches to 38 inches.
For a crossover enter a quantity of two stairs and choose the option for a crossover platform in the next section.
Alternating tread step design offers a shorter span than traditional steps.
Get measuring guidelines product dimensions and connection details for alternating tread stairs.
Welded steel construction with bolt on handrails.
Features handrail on each side of unit dual safety chain at the top of the stair and formed steel steps with raised surfaces for better traction.
Specify the type alternating tread stair stair height and options.
Minimum and maximum heights apply.
3d cad model generator.
Alternating tread stairs aluminum 68.
For a 9 floor to floor height there would be 14 risers of 7 714.
Baked in powder coat finish for added toughness.
The change in elevation as shown on the drawings between the upper finished floor surface where the top landing will be attached and the lower finished floor surface where.
But with an alternating tread stair the difference in height between the right and left treads is the unit rise using the guidelines of commercially built alternating tread stairs i try to get the unit rise between 6 1 2 in.
Alternating tread stair design.
Alternating tread stair angle.
56 or 68 degrees from horizontal as specified in the drawings.
The steeper the angle the larger the rise.