Hi back again,
This month I would like to talk about fold up stairs. Not the rickety kind that is basically a ladder. Fold up attic stairs can be very convenient package, in that they achieve a lot. Trap door, fold down stairs & inexpensive. They are usually of a specific width to fit a joist opening, so can be quite narrow.
What I want to talk about is a fold down stair system that can be of substantial width (36″- 48″), that has structural integrity. A proper stairs, that also fold up.
At Z-DesignLab we designed the stairs & perfected its operation in the field and I have to say it works great, ticking all the design box criteria.
The stairs is hinged on one of the top threads, so this is the pivot point. By using 4 pulleys, a counter weight and a wire ripe, the stairs folds up and down effortlessly.
We have made a video that shows it all.
All the best for now,