Simple stairs have just two components. The flat board that your foot steps on is called a tread. The treads connect to side stringers and sometimes to one that is in the middle of the stairs. The ...

A simple machine is a tool that helps us do work. They use clever shapes to help us move, lift, cut and other types of work. Learn more about the inclined plane, the pulley, the lever, the wheel and ...

I feel it’s important for you to understand the structure of a set of stairs before you get out your saw and framing square.