Trim Stair Risers with Mitered Corners

What happens here

Begin trimming the stair risers with mitered corners. The host explains that the stair stringers were framed to allow for a nearly flush fit, leaving just a tiny bit of overhang to accommodate minor adjustments and ensure a clean outside corner. To create the mitered joint, first drill a pilot hole, then drive a screw partway to hold the mitered piece in place. Then, drill a second pilot hole through the mitered piece into the adjacent board and drive another screw to pull the joint tight. This technique helps achieve a perfectly tight mitered corner.

Goal: Install mitered trim on stair risers for a finished, professional look.