Old 05-30-2012, 03:04 PM
  #4  
Holice
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Join Date: Mar 2010
Location: Sturbridge, Ma
Posts: 3,992
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You can use John Flynn's method of diagonal backing. I believe (according to his formula) you would length plus about 1/2 yd. Not sure unless do the calculations. You can find the directions on his web site. Sure saves on backing fabric
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