2022 Jan BOM - 24 inch Half Square Triangle Block

01/10/2022 9:22 AM | Anonymous

Previously posted by Em Komiskey on stlmqg.blogspot.com

Welcome to Month One of the St. Louis Modern Quilt Guild 2022 Block of the Month Sampler!

Remember to post your block to Instagram with the hashtag #stlmqgbom before the February meeting to be entered to win this month's prize. If you don't use Instagram, you may email a photo to the guild email. 

We are starting off with a big, easy 24-inch half square triangle block. Before you begin, consider how you will arrange your half square triangles, as that may affect whether you use a single or multiple fabrics for your half square triangles within your block. In a 4x4 grid, there are 72 possible combinations for symmetric blocks made with half square triangles. You can see them in the following image generated by plover.com.



Cut (8) 7-inch squares from background fabric

Cut (8) 7-inch squares from foreground fabric. Individual color choices will depend on your choice of block design. 


Standard half square triangle construction. 

If you are new to half square triangles, check out this video from Melanie Ham for directions on how to make them. 

Place one background fabric square and one foreground fabric square right sides together. Draw a diagonal line from corner to corner on one side. Sew ΒΌ inch on each side of your drawn line. Cut the block apart on the diagonal line. 

Repeat with your remaining blocks. 

Press half square triangles open. 

TRIM each of 16 HSTs to 6.5 inches. 

Assemble according to your chosen block design. 

St. Louis Modern Quilt Guild is a 501(c)3 non-profit organization. 216 Parkland Ave, St. Louis, MO 63122

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