This setting triangle calculator finds fabric requirements and cutting instructions for side and corner setting triangles.
When blocks are set on-point, the rows require side and corner setting triangles. In the image above the side triangles are yellow and the corner triangles are blue.
IMPORTANT NOTE: This calculator takes finished block sizes in whole numbers only. Use the next highest whole number for your calculations. Example: If your block finishes at 13.5″ then enter 14″. Trim the triangles after sewing all the rows together.
Setting Triangle Calculator
NOTE: Although we take great care to get the information, numbers and calculations right, we are not responsible for errors on this platform. It is strongly suggested you make test cuts and test piecing before cutting your entire project.
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Happy quilting!
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