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Half Square Triangle from strips

1 - 3 inch unit from 44 inch fabric bolt width

There are several methods to make half square triangles. Following are instructions to make half square triangles from strips. To calculate how large to cut strips, add ¹/₂ inch seam allowance to what you want finished unit size to be. Below calculations are made using this formula.

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Unit size	1" 1-1/2" 2" 2-1/2" 3" 3-1/2" 4" 4-1/2" 5"
Number of units	1 2 3 4 5 6 7 8 9 10 20 30 40 50 60 70 80 90 100
Fabric bolt width	Fat Quarter 40 44 60