How to Add Crown Molding and a Valence

How to Add Crown Molding and a Valence

This project adds a 4’ valence above a narrow window and crown molding along the top of a 16’ wall.


5 col

Difficulty: Intermediate

Materials
12” x 5/8” x 4’ Plywood
(2) 12” x 5/8” x 7” Plywood
(2) 6’ Crown molding with 45-degree mitered corners
4’ Crown molding with 45-degree mitered corners
(2) 7 5/8” Crown molding with 45-degree mitered corners
4’ Strip molding with 45-degree mitered corners
(2) 7 5/8” Strip molding with 45-degree mitered corners
(4) 3” L-brackets
Wood glue
Nail gun with 18-gauge 2” brad nails
Drill with a Phillips head bit and #10 star bit
(6) 1¼” Wood screws
(8) ½” Wood screws
(8) 3” #10 Star screws
Safety glasses
Tape measure
Wood putty
Putty knife
Semi-gloss interior paint – color of your choice
Paintbrush
Painters tape
Speed square
Stepladder
4’ level

Instructions

CONSTRUCTING THE VALENCE:

1. Apply a line of wood glue along the front short edge of the 12” x 5/8” x 4’ plywood. Press the 12” edge of the 12” x 5/8” x 7” plywood onto the wood glue. Check with a speed square to ensure the two pieces are at a 90° angle. Secure the pieces together with (3) 1¼” wood screws (See images below)

2. Repeat Step 1 to attach the second 12” x 5/8” x 7” plywood on the opposite end of the 4’ plywood

HANGING THE VALENCE:

3. Attach an L-bracket to the side of the 12” x 5/8” x 7” plywood using (2) ½” wood screws. The protruding part of the L-bracket should be level with the top end of the 7” of wood so it will lay flush against the wall for hanging in later steps (See image below)

4. Repeat Step 3 to attach the second L-bracket on the 12” x 5/8” x 7” plywood on the opposite side

5. Position a stepladder underneath the window where the valence will be hung so you can reach up to the ceiling. Center the valence over the window so the top is flush with the ceiling. There is no need to locate studs since the screws will be drilled into the wood Top Plate that is located along every wall and ceiling edge. Hold a 4’ level along the bottom of the valence to make sure its straight. Use a drill with a #10 star bit to secure the valence to the wall with 3” star screws through the L-brackets on each side (See image below)

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Tip: Sometimes walls and ceilings don’t meet along a perfectly straight line. If this is the case, it’s better to make sure the valence is straight along the bottom edge rather that along the ceiling. Any gap between the top of the valence and ceiling will be covered with crown molding in later steps

6. Place an additional L-bracket inside the valence. Secure it to the 12” x 5/8” x 7” plywood with (2) ½” wood screws and to the wall with (2) 3” star screws. Repeat to secure on the opposite side of the valence (See image below)

HANGING THE CROWN AND STRIP MOLDING:

7. Put on your safety glasses. Hold the 6’ crown molding up to the ceiling between the edge of the valence and the adjacent wall edge. Secure in place using a nail gun with 18-guage 2” brad nails spaced every 4” – 6” along the top and bottom edge of the molding. Repeat on the opposite side of the valence with the second piece of 6’ crown molding (See image below)

8. Hold the 7 5/8” crown molding up to the side of the valence so it’s flush with the ceiling. Secure in place using a nail gun with 18-guage 2” brad nails spaced every 4” – 6” along the top and bottom edge of the molding. Repeat on the opposite side of the valence with the second piece of 7 5/8” crown molding. The 45° mitered corners of the 7 5/8” and 6’ molding will join together to make a 90° angle inside corner. Place the 4’ crown molding against the front of the valence and secure in place using brad nails the same as for the 7 5/8” pieces. The 45° mitered corners of the 7 5/8” and 4’ molding will join together to make 90° angle outside corners (See image below)

9. To add the strip molding to the valence, secure the 7 5/8” molding to the side edge so it’s flush with the bottom of the valence. Secure in place using a using a nail gun with 18-guage 2” brad nails spaced every 4” – 6” along the length. Repeat on the opposite side of the valence. Next, hold the 4’ strip molding up to the front of the valence so it’s ends are lined up with the ends of the 7 5/8” molding. They will meet to make 90° outside corners. Secure in place using brad nails the same as for the 7 5/8” pieces (See image below)

FINISHING TOUCHES:

10. Once all the molding is in place, cover any screw heads or brad nail heads with wood putty. Allow the putty to dry for 2-4 hours

11. Place painters tape around the edge of the valence and crown molding to protect the wall and ceiling either side of it. Paint the valence and crown molding the color of your choice and all to dry for 4-6 hours. Remove painters tape once the paint is dry

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