[QUOTE=merrylouw;7256116]So, Shortcake, the top of a queen size mattress is usually 60 x 80. You need to decide how far you want the sides to drop (like a bedspread). When I add borders, I measure the length (93) and cut the width I need for each side. With 4 yards of fabric, you have enough to cut that length without having to piece it. Does that make sense? 4 yards is 144" in length.
Merrylouw, I understand that I would need to cut two piece 18.5 X 93 for the width but I'm confused about what you mean when you tell me to "remember that only leave about 7" inches". Do you mean that after cutting those two strips I will only have 7" to add to the length? Also, 18 seems like an awfully wide boarder. I'm sorry I'm not understanding but I do appreciate you trying to explain it to me.
Say you want the width to be 100", take 100 - 64 = 36 ÷ 2 = 18". Add 1/2" to each piece for seam allowances. So, you cut two pieces: 18 1/2" x 93". (Just remember that amount, 37", leaves only about 7" from the width of fabric.)