Step 2 · Step 2: Measure Tread Depth for a Flawless Fit

For each stair, place the end of your tape measure firmly against the riser at the back. Extend the tape straight across the flat surface until you reach the outermost edge of the tread's nosing. It's critical to keep the tape measure perfectly flat and level for an accurate reading. Be sure you are measuring the bare wood, not on top of old carpet or leftover adhesive, as this can throw off your dimensions and prevent a perfect fit. Record the depth for each step as you go.