How to Assemble a Chair Rail
- 1). Measure the lengths of the walls in the room. Mark the measurements down for future reference. Purchase chair rail molding in the lengths you measured, plus an extra 96 inches for future repairs or in case of a mistake in cutting during installation.
- 2). Measure and mark the lengths of molding for each wall of the room. The ends of the molding will join together at a 90-degree angle. Therefore, the ends that meet in a corner need to be cut at a 45-degree angle with the long points on the side that goes against the wall so that they form a 90-degree angle. Indicate the angled cuts on the lengths of molding when marking the measurements.
- 3). Cut each length of molding on the miter saw. Adjust the miter saw to make the 45-degree end cuts on the sections that require a mitered end.
- 4). Sand the cuts lightly with fine-grit sandpaper so that the ends fit together perfectly.
- 5). Measure up from the floor to the top of the back of the chairs that are in the room. This is the height at which you should locate the chair rail on the wall. Measure up and mark each wall.
- 6). Place the line level across a wall. Line up the molding with the laser line of the level. Drive finish nails through the molding into the wall every 6 to 8 inches. Continue to assemble the molding together along the remaining walls in the same manner.
- 7). Set the nails into the surface of the wood approximately 1/16-inch deep using a nail set and hammer. Fill the nail holes with wood putty using a putty knife. Allow the putty to dry and sand it flush with the surface of the molding.
- 8). Fill in the joints in the corners with painter's caulk. Wipe away the excess with a damp rag. Allow the caulk to dry.
- 9). Tape along the top and bottom edges of the molding with painter's tape to protect the wall while you prime and paint the molding.
Prime and paint the chair rail molding. Allow the paint to dry. Remove the painter's tape.