How to Make a Wood Valance or Cornice Board

 In addition to adding personality to your home, window coverings can provide privacy, accent your interior decoration and insulate from cold or heat. Like valances, cornice boards can hide curtain rods and hardware and coordinate with your curtains. Wood cornice boards can be covered with fabric to match your curtains, stained and sealed or painted.

Source

Things You'll Need

Tape measure

1- by 6-inch board

Pencil

Back saw

Wood glue

Nail gun

Finish nails

Nail setter

Hammer

Decorative trim

Crown molding

Miter box

Wood putty

Sandpaper

Latex paint additive

Paint

Paint brush

 

Make Your Cornice

Step 1

Use your tape measure to determine the width of your window frame. Add 2 inches to your measurement so your finished cornice extends past your window casing. Use your pencil to mark the length on your 1- by 6-inch board. Two lengths of 1- by 6-inch planks fit the width of your window and two pieces of 1- by 6-inch lumber are 4 inches long.

Step 2

Hold your 1- by 6-inch board firmly. Place the fine teeth of your back saw at a 45 degree angle and make several short, quick cuts. Cut smooth straight lines. Check your cut pieces to see that your measurements are correct.

Step 3

Glue your short pieces to the back side of each end on one long 1-by 6-inch board. Press the ends together and hold in place. Load 1 1/2 inch finish nails into your nail gun and nail the ends together to form a bracket shape. Fasten your second long board to the top. Glue and nail 2- by 4-inch wood blocks in each upper corner at the back of your cornice board. If your cornice is long enough to cover a custom window attach a 2-by 4-inch block at the center back. Place your nail setter on the head of nails that didn't set below the surface of your wood. Carefully hit the nail setter with your hammer and sink the nail.

Step 4

Measure the short length of your trim. Place your short piece of trim in the miter box and cut one bevel angle and one straight edge. Check the long piece of trim and use your pencil to mark the beveled angle. Cut your second piece of short trim and beveled edge. Finish cutting the front end. Glue and nail in place keeping your edges flush. Measure and repeat the steps using the crown molding. Set nail pops with your nail setter and hammer.

Step 5

Use the spatula to fill the nail holes with wood putty and allow it to dry. Sand your cornice board with coarse sandpaper to take down any rough edges, flaws and excess wood putty. Use fine paper to sand to a smooth, soft finish. Do not sand your ornate style of trim and molding.

Step 6

Mix sixteen ounces of paint additive to one gallon of water based paint. Mix well. Paint your cornice board without fear of brush marks. Allow to dry and hang your cornice board over your window.

Tips

Remember the long side of your 45 degree angle cuts are always on top.

Stain and seal your cornice board and let the natural wood show.

Cover the cornice with fabric then add natural or painted wood trim and molding.

Warnings

Never point a loaded nail gun at yourself or another person.

Keep electric tools away from water.

Reference

Window and Door Campanies: How To Build A Wood Window Valance [http://www.windowanddoorcompanies.com/window/how-to-build-a-wood-window-valance]

Resource

Handy Ma'am: How to Make a Wood Window Cornice With Shelf [http://www.pbs.org/wttw/handymaamtv/handyProject402c.htm]

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