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Thread: half square triangles

  1. #1
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    Help! I followed the directions for half square triangles ie. adding 7/8 " to end square size.
    I needed to end up with 2 1/2 " square. Cut 2 squares at 3 3/8 ". Sewed and cut, ironed. Square ended up 3". What did I do wrong.

  2. #2
    Power Poster
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    After you sew your 3 inch squares to other 3 inch squares, they will end up being 2-1/2 inch finished squares.

    1/4 inch on each side "goes away/disappears" in the seam allowances.

  3. #3
    Super Member TonnieLoree's Avatar
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    I have to agree with bearisgray here. Umm, you will probably step back and get a huge chuckle when the light bulb turns on. Not to worry though. It happens to all of us.

  4. #4
    Super Member Stitchnripper's Avatar
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    You could always trim those 3" ones down to 2" unless you have another use for them.

  5. #5
    Power Poster amma's Avatar
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    If you want a 2" finished square, you would cut them at 2 7/8". Sewn together they will be 2 1/2" :D:D:D

  6. #6
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    What size "finished" square are you trying to make?

  7. #7
    Super Member QuiltnLady1's Avatar
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    Since I always overcut, I cut 3" squares to get 2" finished HST. Before I go to the next step I trim them to 2 1/2". If your blocks are supposed to be 2" finished, then trim what you have to 2 1/2" and you will be fine.

  8. #8
    Super Member patchsamkim's Avatar
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    Whatever you want your FINISHED size to be, add 7/8" to that measurement...example..if you want your squares to be 2" finished, cut size would be 2-7/8"...after sewing the triangles, the unit will measure 2-1/2", but after sewn into block, then it will be 2". Hope that helps.

  9. #9
    Power Poster QuiltE's Avatar
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    When it is just about right sized, it's too fiddly to shave that wee bit., so I always add a full inch! ... easier to trim with that little bit more.

  10. #10
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    Needed 2 1/2 " finished square prior to sewing block pieces together.

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