FREQUENTLY ASKED QUESTIONS ABOUT USING CATS TEMPLATES
Updated: 10/13/07
FIGURING YARDAGE FOR EXACT YIELDS
If you hate math, please don’t read any farther!
Another method to figure yardages follows.
To figure custom fabric requirements two formulas apply:
1.) Desired number half-square triangles divided by 2 = number of grid squares needed.
2.) Finished size half-square triangle + 1¼” = grid square size. No grid will be drawn, but you’ll be thinking in grids.
For example, 12 two-inch half square triangles are desired.
1.) Divide 12 by 2 to see that 6 squares are needed.
2.) 2” + 1¼” = 3¼” square size. Think in grids instead of long skinny rows. (2 squares by 3 squares = 6 squares is better than 1 square by 6 squares = 6 squares). Cut the fabric 6½” x 9¾”.
Let’s try one more example.
We’ll go for a strange number like 27 desired 1½” finished units. 27 isn’t evenly divisible by 2, so we’ll round up to 28 units as a goal.
1.) 28 divided by 2 = 14 squares needed.
2.) 1½” finished size + 1¼” = 2¾” size grid squares needed.
I could cut a grid size of 2 by 7 for 14 squares, or I could make a few extra and cut a grid size of 3 by 5 for 15 squares. Personally, I’d make the 3 x 5 size because I know it will be more time efficient and making a few extra units is never a bad idea. The 2 x 7 size multiplied by 2¾” size squares would be cut 5½” x 19¼”, and the 3 x 5 grid size would be cut 8¼” x 13¾”.
For further information: Adapting Other Patterns
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