Step 2 · Step 2: Measure the Depth of Each Tread

For each step, place your tape measure firmly against the vertical riser at the back. Extend it straight out over the front edge of the tread, which we call the 'nosing.' It's absolutely critical to keep the tape measure flat against the bare wood surface for an accurate reading. Measuring over old carpet remnants or adhesive will throw off your numbers. Write down the depth for this specific step before moving to the next.