Squaring HeartStrings Blocks

HeartStrings blocks are pieced on a 10 inch foundation block and are squared to 9.5 inches after the foundation is covered with strings.

squaring Heartstrings blocks

I square my blocks from the back.

squaring Heartstrings blocks-1

I will be trimming from all 4 sides of the block so for my first cut, I’m going to cut about 1/4 inch off the foundation from the top and the right side. Notice that the diagonal line on my ruler is running down my center strip.

squaring Heartstrings blocks-2

Before I cut, I double check that my foundation extends beyond the 9.5 marks on the bottom and the left side of the block.

squaring Heartstrings blocks-4

I trim up the right side and across the top.

squaring Heartstrings blocks-5

I flip my block around.

squaring Heartstrings blocks-6

And using the ruler to measure exactly 9.5 inches, I trim the remaining two sides.

squaring Heartstrings blocks-7

squaring Heartstrings blocks-8

Here’s my 9.5 inch block.


5 thoughts on “Squaring HeartStrings Blocks

  1. Linda Susie

    Thanks I just looked up the directions with the help of Sue Franks in MN
    I have some old sheets I plan on cutting up and sending to her for foundations for the back of your blocks…. I just hate throwing away clothes or sheets if I can find a use for them..


  2. Karen Hansen

    I hae several relatives who want to make string blocks for Quilts of Valor. They do not have anyone to make the quilt. Where can they send the blocks? Our group is making a whole quilt. Where do we send blocks to? Where do we send tops? Where do we send completed quilts. I could not find any addresses on your site except for a place to send backing fabric donations. Thanks, Our beginner quilt group has really enjoyed learning to make a whole quilt by this method. Thanks for your wonderful patterns! Karen Hansen momhansen@yahoo.com


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