Alternating tread staircases are used in small spaces because they are some of the best ways to add square footage short of using a ladder.
Alternating stair tread design.
Designed to be used as a stair with users facing the direction of travel when climbing up and down.
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.
The steeper the angle the larger the rise.
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.
Stair slope of either 56 or 68 degrees requires a smaller overall footprint than a standard stair.
You can save at least the half of the space without the problems of having smaller steps.
An alternating stairs design though will allow you to climb down facing forward which is impossible to do with a ladder.
For spatial frugality nothing short of a ladder can compete with the alternate tread stair.
It s as if the staircase had been compressed from front to back.
It can also be incorporated with designs and features that will make it a lot neater.
This is a great option for people who dont have too much space in their offices or house for a regular long stair.