I ve done alternating tread stairs before also called ship ladders.
Alternating tread ladder plans.
You can save at least the half of the space without the problems of having smaller steps.
This is a great option for people who dont have too much space in their offices or house for a regular long stair.
Industrial stairway crossover footprint.
Is on the code makes no mention of alternating tread depths riser heights width overhead.
Industrial stairway with platform footprint.
Stair slope of either 56 or 68 degrees requires a smaller overall footprint than a standard stair.
Alternating tread ladder crossover 2 alternating tread ladders connected by a platform industrial stairway calculate space requirements at various heights and angles.
The steeper the angle the larger the rise.
Its a little bit dificult to make the ma.
As i can provide slipresistant stair inc bim content alternating tread each of your spiral and can have standard rise and.
The unused half tread is removed to provide more tread depth for improved safety and comfort.
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.