Step 3 · Step 3: Measure the Width of Each Tread

Now, let's measure the width. Stretch your tape measure across the front of the tread, from side to side, keeping it parallel to the back riser. If your stairs are between two walls, measure wall-to-wall. If one side is open, measure from the wall to the open edge. To achieve that beautiful, design-conscious border that showcases your wood, we suggest leaving about 1 inch of space on each side. For example, a 36-inch wide stair looks fantastic with a 34-inch wide tread. This is a key part of what makes the finished project look so polished.