Install a new living room damaged stair cap

Step-by-step written guide

1. Measure the trim or wood part twice, mark the orientation, and protect surrounding walls, floors, and finished surfaces.
2. Remove damaged material carefully with a pry bar or utility knife so adjacent pieces can be reused or matched.
3. Cut, dry-fit, shim, or sand the replacement until the joints close cleanly and the piece sits level or plumb.
4. Fasten with the correct nails, screws, adhesive, or anchors, then set fasteners below the surface where needed.
5. Fill nail holes, caulk gaps, sand lightly, and finish with primer, paint, stain, or clear coat to match the room.

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