Stair stringer is made generally in the construction industry for roof rafters and the floor joist to 16 inches at the center and we can also use these measures while constructing a new set of stairs and find out how much stringer we really need to use.
If you have stairs that 48 inch and 16 inch you divide you are on the central measurement to 48 inches, you will find that you need to use to stringer stairs. If your ladder is between 30 and 36 inches you will need Stair stringer, how much stringer stairs you really need will be determined by the thickness of your stair treads. If you will be using 4 x 12 stair treads, there is a good chance that you only need one stair stringers at each end of the ladder, if your household is less than 40 inches.
12 Photos Gallery of: Stair Stringer with a Framing Square
If you will be using 2 x 12 stair treads, you can space your stringer 24 inches on center. The thickness of the tread stair stringer staircase will affect the amount you really need, but you cannot go wrong with the original 16 inch on center measurement, unless you are going to use the stair treads are less than 1 inch thick. Always check with a professional building first, before you build a ladder to verify the number Stair stringer you really need.