You can save at least the half of the space without the problems of having smaller steps.
Alternating stair tread design.
It can also be incorporated with designs and features that will make it a lot neater.
An alternating stairs design though will allow you to climb down facing forward which is impossible to do with a ladder.
Stair slope of either 56 or 68 degrees requires a smaller overall footprint than a standard stair.
The tread depth and the rise from step to step is the same as on a normal stair but because half of each tread is omitted the run is reduced by half.
Designed to be used as a stair with users facing the direction of travel when climbing up and down.
For spatial frugality nothing short of a ladder can compete with the alternate tread stair.
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.
Its a little bit dificult to make the math but is an excellent result and you can make it as elegant as you can do it.
The steeper the angle the larger the rise.
It s as if the staircase had been compressed from front to back.
Alternating tread stairs design offers a shorter span than traditional steps for applications where there is minimal space for installation of a traditional style stair.