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02-12-2013, 03:51 AM
#1
Senior Member

Join Date: Jan 2011
Location: Allegan, MI
Posts: 717

I am trying to figure out how much fabric that I need to buy for a quilt backing that 115 X 115? The fabric is only 42".
02-12-2013, 04:07 AM
#2
Senior Member

Join Date: Sep 2011
Location: Grapeland, Texas
Posts: 573

I figure about 8 3/4 yards.
02-12-2013, 04:30 AM
#3
Junior Member

Join Date: Jul 2010
Posts: 175

Using my Robert Kaufman app, it says 9 5/8 yds. That's with no allowance for overage. Allowing for 3" of overage on each side, 10 1/8 yds.
02-12-2013, 05:01 AM
#4
Super Member

Join Date: Aug 2010
Location: Delmarva Peninsula
Posts: 1,151

13 2/3 yards which is what my Quilter's Fabricalc came up with. I find this calc to be very generous with the backing.
02-12-2013, 05:31 AM
#5
Senior Member

Join Date: Oct 2012
Location: Middle TN
Posts: 943

To get the length you need add the extra fabric around the edge of your top, usually 4" for hand/domestic quilting. 6-8" LA.
DSM--- 115+4=119. Width: Divide 119/40=~3 (you will loose almost 2 inches in selvage/seams) for # repeats of fabric. Length: divide 119/36 = 3.33 or 3 1/3. Next multiply length x width. 3*3 1/3= 10 yards.
LA---115+8=123. W: 123/40=~3.02. L:123/36=~3.42. WxL=3.02x3.42= 10.33, I would round to 10 1/2 yds.
02-12-2013, 05:56 AM
#6
Senior Member

Join Date: Jul 2010
Posts: 321

I calculated the same as giquilt, so I would definitely get at least 10.5 yards--and if the binding is going to be made out of the backing material, I would get an extra 3/4 yards for that.
02-12-2013, 06:17 AM
#7
Super Member

Join Date: Jul 2010
Posts: 2,707

I would figure 40" useable. That would mean 3 widths. Then you need 115 x 3 for the length. That is 345 inches, divided by 12 inches which gives you just under 30 feet divided by 3 feet to the yard is 10 yards. Is my math right??
02-12-2013, 07:04 AM
#8
Super Member

Join Date: Jul 2009
Location: Southwest Kansas
Posts: 4,820

You take the length you need and divide it by 36. I'd add 10 inches to your length to allow enough extra for quilting. So that's 125 divided by 36. That's 3.4. So I'd round up to 3.5 yards length. You'll need three widths of fabric to cover 115 inches but it won't be quite 10 inches extra.

The two base number are always 36 inches in a yard and 40 inches of useable fabric width.
02-12-2013, 07:40 AM
#9
Super Member

Join Date: Dec 2010
Location: Iowa City, IA.
Posts: 1,075

I agreed with SissorQueen. I sell fabric almost everyday.
02-12-2013, 07:50 AM
#10
Super Member

Join Date: Nov 2008
Location: Duluth/ Superior, WI
Posts: 1,032

You will need 10.5 yards cut into 3 equals lengths of 3.5 yard each.
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