This is a simple arch valance with a center box pleat that shows a contrast fabric.The valance width can be 36" or up to 60" wide. It is 21" deep at the sides and 12" near the center. 1" of the middle (contrast) pleat is exposed. It is 11 1/2" deep there. The middle pleat will sew into the valance and become part of it. The jabot is 6" wide at the board line x 36" deep. Alterations instructions for the depth of the valance and jabot are included.