Styrofoam Cornice Board

Add 1 5 inches and mark that width on the foam insulation board with a pen.

Styrofoam cornice board.

Juvale foam board arts and crafts supplies 12 x 4 x 1 in 12 pack 4 3 out of 5 stars 138. Get it as soon as thu oct 1. Our window was 35 wide. Measure the width of the window from the outside edges of the trim and then add 4 2 allowance per side cut front of board to desired length window trim width 4.

Now if you hang curtains under your board you need to figure for the rod. Measure the outside width of the window including the frame or wood trim around it. We used a 2 curtain rod. Determine how long you want your boards to be.

Cut 2 side pieces 5 wide each. Cut two more smaller pieces of the styrofoam panel for the sides of your cornice board. Measure for your width. Building the cornice board.

Determine how tall you d like the. We then had to determine how far past the window we wanted the. Then hot glue the outer short edges of your long piece and press the shorter pieces to it like in the picture above. All you have to do is select your fabric measure your window we cut specifically to your window size no cutting down necessary when you receive your foam cornice all you do is tuck the fabric into the grooves and mount it to the wall.

This measurement will depend on how far you would like your cornice board to come out from the wall i cut mine to be about 5 inches wide.