Step 3 · Measure Each Tread's Width

Next up is the width. Measure across the tread from side to side, keeping your tape measure parallel to the back of the stair. If walls enclose both sides of your staircase, measure from wall to wall. If you have an open side with balusters, measure the full width of the wooden step itself. To achieve that classic, high-end designer look, we recommend ordering your treads about 2 inches narrower than your total stair width. This creates a beautiful 1-inch border of exposed wood on either side, a design choice that truly elevates your staircase.