There isn t one unifying rule for every kind of material stair treads may be built out of.
Thickness of oak stair treads.
From stair treads stair railing and a complete selection of stair parts surewood lnl has what you need to make your stairs beautiful.
As you may have noted from the sketches and text above typically building codes for stairs specify minimum stair tread thickness 1 if supported by a riser at front or 1 1 2 thick treads if the stairs are open construction without risers but they do not specify a maximum allowable tread thickness.
According to building codes stair tread for wood stairs has to be anywhere from 1 to 1 in thickness.
Retrofit stair treads also known as retreads are made to fit over your existing stairs.
Standard stair treads are a full 1 thick.
Most building codes specify that the minimum thickness of a tread is 1 inch 2 54 cm if supported by a riser along the front.
The body is 3 4 thick.
If the stairs are open construction the stair tread must be a minimum of 1 5 inches 3 8 cm to support the weight.
Oak stair treads oak stair treads are 1 thick x 11 1 2 wide and available in lengths from 36 to 96.
Our retrofit stair treads have a 1 thick bullnose with a 1 1 4 overhang.
Returns are 1 1 4 wide and extends 1 1 2 past back side of the tread.
Our oak retrofit treads are 3 4 thick x 11 1 2 wide and have a 1 nose that overhangs the existing stair structure for remodeling or overlaying a staircase without removing the existing tread.
When it comes to other materials the thickness may differ.
How to install oak stair treads and risers.
What is the proper thickness for stair treads.