Double Stringer Stairs. Pros recommend a width of 16 between stringers but depending on the stairs and the thickness of the tread that figure could be slightly higher. Double stringer stairs are designed with two pieces of steel to support the treads. Double stringer floating stairs consistent performers.
A stairway staircase stairwell flight of stairs or simply stairs is a construction designed to bridge a large vertical distance by dividing it into smaller vertical distances called steps stairs may be straight round or may consist of two or more straight pieces connected at angles. For example a stair that is 60 wide might have two 2 x 6 steel tube stringers set apart 32 inches leaving 6 of overhang for the treads on each of the outer edges.
As for the length of the stringers take the total height the stairs need to be and square that value.
These double stringers are an excellent traditional staircase replacement option for modern rustic and any other decor style. For example a stair that is 60 wide might have two 2 x 6 steel tube stringers set apart 32 inches leaving 6 of overhang for the treads on each of the outer edges. A stairway staircase stairwell flight of stairs or simply stairs is a construction designed to bridge a large vertical distance by dividing it into smaller vertical distances called steps stairs may be straight round or may consist of two or more straight pieces connected at angles. But this happens less often.