Step 1 · Step 1: Measure for a Perfect Fit

Grab your measuring tape. For each step, you'll need two key measurements: the depth (from the front edge, or 'nosing,' to the riser at the back) and the width (from side to side). Write down the measurements for every single step—small variations are common in homes! Be sure to note any existing trim or molding that could affect how the new tread sits.