Alternating Tread Stair Calculator

Industrial stairway with platform footprint.
Alternating tread stair calculator. The idea behind them is your foot only uses half of the stair so you can cut the other half out to allow more step up room between treads that would otherwise overlap the space savings of a ladder but will full treads and a reasonable rise. Alternating tread ladder with platform. For convenience and flexibility this stair stringer calculator comes in two forms the automatic and manual. For a 9 floor to floor height there would be 14 risers of 7 714.
The steeper the angle the larger the rise. Total area for all treads and rises 79 92ft 8 88y to calculate and display upper floor opening and stair head room enter upper floor thickness check the show head room check box and drag the head slider to calculate and animate diagram head room and floor opening. Industrial stairway crossover footprint 2 industrial stairs connected by a platform. Start with this and adjust the angle of the carriage from there.
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. I ve done alternating tread stairs before also called ship ladders. Alternating tread stair design adjust the riser height to the space between floors. Alternating tread ladder crossover 2 alternating tread ladders connected by a platform industrial stairway calculate space requirements at various heights and angles.
This is a great option for people who dont have too much space in their offices or house for a regular long stair. This free stair calculator determines stair parameters such as rise total run and angle stringer length based on height run tread and headroom requirement. Its a little bit dificult to make the ma.