Originally Posted by
SusanSusan33
i was trying to figure out the layout for my daughters full sized bed and was thinking 3x4 or 4x5. Do you have the measurement of the 3x5 layout without the borders? Floating the inner border confuses me too. I have a Craftsy class on borders and there is a formula but I think until I actually do it (like on a sample) I won't quite get it.
If you plan to use the borders Bonnie designed, each side of your quilt needs to end up a multiple of 8 inches, including the inner border. That's because the repeat of the border design is 8 inches (one each of the two slightly different broken dishes units).
Each of the main quilt blocks finishes at 12 inches, and the green sashing strips finish at 3 inches. So if you have 3 blocks wide, that's 3x12=36 for the blocks, plus 4x3=12 for the sashing, so 48 inches before adding an inner border. The next multiple of 8 is 56 inches. So you'd need 8 inches of additional width in this case, so 4 inches of inner border on each side.
If you have 4 blocks wide, that's 4x12=48 for the blocks, plus 5x3=15 for the sashing, for a total of 63 inches. You could either add one more inch to get 64 inches, meaning a 1/2 inch finished border, or you'd need to add 9 inches, by using a 4 1/2 inch finished border.
If I were making a 3x4 block quilt, I think I'd add a 4 inch finished border down the long sides, and 4 1/2 inch on the short sides. Then the outer border should work out all around, and the slight difference in inner border width won't be very noticeable at all.