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1525 10th Avenue South #2  Great Falls, MT 59405
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Established 1998, Veteran Owned and Operated by 8 veterans
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Authorized National Handi Quilter Dealer Since 2006
Authorized Janome and Brother Dealer Since 2004


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First you must measure your quilt top.  If your quilt top is a “standard” size, then you can use this handy chart.  If it falls somewhere in between, then follow the instructions below the chart. 

Wide Quilt Backing Estimator 

Quilt Size 

Quilt Dims. (Inches) 

108”/118” Wide Fabric 

44” Wide Fabric 

Baby 

30” x 40” 

1-¼ - 1-½ yards 

1-¼ - 1-½ yards 

Crib 

40” x 60” 

1-½ yards 

4 – 5 yards 

Throw 

60” x 70” 

2-¼ yards 

6 yards 

Twin 

72” x 92” 

2-½ yards 

6 yards 

Full 

86” x 92” 

2-¾ yards 

6 yards 

Queen 

92” x 96” 

3 yards 

9 yards 

King 

100” Square 

3-¼ yards of 116”/118” 

9-¾ yards 

How to Figure the Amount of Wide Quilt Backing to Order

1.  Measure the width (W) and length (L) of your completed quilt top.  For example:  60” W x 72” L 

2.  Add the number of extra inches required by your longarm quilter (usually 3” on each side for a total of 6”).  Prewashing means less shrinking and crinkles. As you probably know, fabric shrinks when it's been washed and dried. If you wash your quilt AFTER you've sewn it together, the fabrics will most likely shrink and have an unwanted crinkle effect that you weren't expecting.  We also suggest adding 1/8 - ¼ yard for shrinkage if you plan to pre-wash you're backing. *

60” + 8” + 5” = 73” W 

72” + 8” + 5” = 85” L 

3.  You will need a wide back that measures at least 73” x 85”.  Most of our wide backs are 108” wide, which can be used for the length of the quilt.

4.  Divide the measurement for the width of your quilt by 36” to figure the amount of yardage to order: 

73” ÷ 36” = 1.89 yards of 108” fabric.  

We sell by the ¼ yard, so you would need to order 2 yards.  That will give you a piece that measures 72” x 108”.  Remember; it is better to have too much than not enough! 

Helpful Hints:

  • While it is your personal choice, we recommend pre-washing your wide back in cold water and drying in a cool dryer as wide quilt backing shrinks at a higher rate in the width than regular quilting cottons.  If your quilt top is larger than 97” long and you plan to pre-wash, add ¼ yard to the calculated yardage above. 
  • If you have a very large quilt top, make sure to carefully calculate your yardage required

 
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CONTACT US

jw@bigskyquilts.com

406 727 1757
      1525 10th Ave S  #2
       Great Falls, MT 59405

                 OPEN
 Thursday, Friday, Saturday 10-5:30

                CLOSED
Sunday, Monday, Tuesday, Wednesday

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LITTLE ABOUT US

Big Sky Quilts stocks all the fabrics, notions, kits, patterns, and batting materials you need to make beautiful quilts. Need a sewing machine? We have those too, along with an onsite repair department and professional long arm quilters to help you finish your projects. Our store features a friendly environment where you'll enjoy a wide range of fun, informative classes, plenty of creative inspiration, and the best customer service around!