Making Wood Stair Treads
If you're planning on making your own wood stair treads, you're going to need a few tools. The wood stair treads in the picture below were cut out of oriented strand board and will be used for a stairway with three steps. It's not difficult to make your own wood stair treads, but you're going to need a saw, tape measure, Straight edge and the pencil.
Using Building Blueprints
The first thing you will need to do is locate the building floor plans
or a stairway section. After you've found it, the engineer or architect
should have called out for or provided you with at least one
providing you with more information about the stairway, including which
type of materials to use, for the stair treads.
On the detail, it should specify, what type of building materials, will be required. For example, the last set of stairs that I built for a room addition, called out for 3/4" plywood. The contractor I was working for, upgraded and we installed 1 - 1/8" plywood instead, making the stairway, a little sturdier.
Working Without Blueprints Or Building PlansI can't really advise you on what type of stair treads you should be installing, because I don't know anything about your stairway. However, you can look around your neighborhood or contact a structural engineer for more information.