White and Blue Damask Wallpaper Blue DS29710 Contempo Damask Wallpaper is prepasted and has 21 inches pattern repeat. Collection name: Stripes & Damasks 2 Size of each double roll is 20.5 inches x 33 feet. Each double roll covers about 56 square feet / 5.2 square meters. . Please order the number of single rolls that you will need, but you must order in multiples of two (even numbers) only. only.