A door stop is the thin strip of moulding that runs around the inside of a door frame. The door closes against it, which keeps the door sitting flush in the frame and covers the gap between the door edge and the frame.

The Colonial profile has a traditional rounded step, 7/16 in x 1-3/16 in. Made from finger joint pine (solid pine wood joined from shorter sections), factory primed white and ready to paint. Pine is a little tougher than MDF and holds nails well. Sold in 14 ft lengths.

How much do you need? A standard door frame takes about 17 ft of door stop: one length for each side and one across the top. Two 14 ft lengths cover one door with plenty left over.