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03/19/2012

How much will your knitting shrink?

Pieces knitted in stockinette stitch will shrink more in length than in width during felting. To calculate how much your piece will shrink, knit a good-sized swatch and use this table to “do the math.”

1. Measure the stitch gauge, length and width of the swatch, then felt it.Width (example)

8 in. (20 cm)

2.5 st = 1 in. (2.5 cm)

 

Length (example)

8 in. (20 cm)

2. Measure the swatch after felting.Divide the measurement after felting by the measurement before felting.7 in. (17.5 cm)7 / 8 = .875
(17.5/20 = .875)
6 in. (15 cm)6 / 8 = .75
(15/20 = .75)
3. Divide the finished size by the result. This is the length and width your piece should bebefore felting.24 / .875 = 27.5 in.
(61 / .875 = 70 cm)
36 / .75 = 48 in.
(92 / .75 = 123 cm)
4. Multiply the width result by the gauge from your swatch. (For metric, divide by 2.54.) This is the number of stitches to cast on.27.5 x 2.5 = 68 st
(70 x 2.5 / 2.54 = 68 st)

 

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3 Comments
  1. very nice

  2. Great comment. If anyone else has some tips we will add them above.

  3. One possible modification, because felted fabric gets funky on the edges:

    knit a swatch larger than your desired measurement swatch, say perhaps an inch bigger on each side. (for example 10″ x 10″)

    Loosely run sewing thread through a box of a given size. (For example 8×8)

    Then felt and measure as you discussed. This allows for a more accurate measurement, without the distortion the edges will cause.

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