Preparing Backing Fabric
 

I have never made a backing before. I have a quilt 64x52 inches. The pattern called for 4 yds of backing fabric but with no instructions. I think I know what to do but need to ask to make sure. Do I cut the fabric into two 2 yd pieces and seam it together? This probably seems obvious to experienced quilters but not to this beginner.

No... it's always personal preference. You can piece it either horizontally or vertically. I have also seen people use their bigger leftovers from the top for the back. I would consider piecing horizontally. You want 3-4" around all 4 edges of batting and backing. So your backing should be length 70-72" and width of 58-60". Also, feel free to ask at your local quilt shop when you buy the backing.

Usually, it is simpler and cost less if you do a horizontal seam since your width is less length than the height of your quilt.

You can also try the John Flynn method where you probably won't need as much as 4 yards

This is one of the best tutes out there on it by our very own QB member Peggi.

http://www.seamstobeyouandme.com/201...back-tutorial/

There are links within this tute for calculating how much fabric you need.

Don't forget, no matter how you do it, make wider seams and trim off the selvages.

When I piece the back, I use 1/2" seams. Depending on how wide your quilt is, the Flynn method is my preferred method for the back. Here is a link for calculating fabric for the Flynn method of diagonal back seams:
http://www.multi-patch.com/html/diag...calculator.php

I quilt on a long arm. I typically use horizontal seams. When the seam is vertical, eventually, there will be a mound in the center of the quilt and you can't pull the quilt straight from side to side. It wants to skew. If you are quilting on a home sewing machine, then it doesn't matter. The diagonal seam causes no problems with the long arm or home sewing machine.

I tend to over-buy fabrics for all of my quilts - not by a lot but enough to leave room for booboos. When it comes to the backing, I tend to lay out the quilt top flat and then take the backing fabric and fold in the various directions to make sure it fits the way I need. Then I cut/sew as needed. I just don't trust my math and/or brain - I need to see it to be sure.