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Thread: Quilt Math

  1. #11
    joan_quilts's Avatar
    Join Date
    Aug 2010
    Close to Breezewood, PA
    I have a friend who does my quilt math for me! LOL I can figure it out, but it sure is nice to get help.

  2. #12
    Super Member tjradj's Avatar
    Join Date
    Sep 2010
    London, Ontario, Canada
    Blog Entries
    I just buy the extra yardage. What I don't use goes into the stash. That way I don't have to stress out over things.
    I quilt to de-stress. So why would I make it stressful?

  3. #13
    Member ClydeneC's Avatar
    Join Date
    Nov 2010
    Austin, TX
    Quote Originally Posted by Holice
    To continue with math

    Say you want to do a 12" 9 patch for a queen quilt.
    Quilt is 96"x108" There will be a total of 72 blocks in the quilt. 96" divided by 12" and 108" divided by 12 = 72

    Each 9 patch block contains 9 squares finished at 4". So cut will be 4.5"
    4.5"x4.5" = 20.25 square inches.

    20.25 x 9 = 182.25 square inches each block
    182.25 x 72 blocks is 13122 total square inches.
    1512 square inches in a yd of fabric

    13122 divided by 1512 = 8.67 total yds.
    Now, assume you want to use two colors in your blocks then the 8.67 divided by 2 is 4.33 or little over 4 and 1/3 yd of each color. But add a half yard for miscuts.

    Calculating for binding.
    Measure around quilt = 408" width of fabric is 42"
    Divide 42 into 408 = 9.7 strips (make it 10 strips)
    If each strip is cut 2.5" then 2.5 x 10 is 25 inches of fabric for the binding.

    I woke up and couldn't sleep
    THANK YOU!!!! for your wonderful directions! I believe I can now do the math. Thank you again and I sure do appreciate the help.

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