We will contact you before producing the shades; you can change the specifications and shape, but the fabric usage is based on the bottom diameter. We require the same amount of fabric if you want one or two shades, so it is best to order COM shades in pairs to maximize your fabric yield!
10" top x 16" bottom x 10" slant - TWO YARDS NEEDED
11.5" top x 18" bottom x 11.5" slant - THREE YARDS NEEDED
13" top x 20" bottom x 13" slant - THREE YARDS NEEDED