Fusible on back of blocks
 

I saw a video by Jenny Doan about a crumb quilt, so I set about making one to diminish my scrap bin. I have almost enough blocks done to make a quilt, so before I put it together, I have a question for the LAers out there
Because there are so many seam lines, I thought about putting light weight fusible on the backs of the blocks, to help stabilize it. So, my question is: if I do that, will it cause any issues with getting quilted? Too dense for the needle to go through? Gumming up the needle? Making it too heavy?
One other question I just thought of: do I use the batting as usual?

I think it's a great idea & it will help the seams from pulling apart. They even make something like this for machine embroidery. As far as thickness, T-shirt quilts have a backing on them and I've never had an issue quilting through all the layers. If you're concerned, you might try a thinner batting.

It could create a lump where the seams are. Test it first.

Many show quilt makers put fusible on the back of the quilt tops.

Thank you for your replies. Sometimes, I think something would work, but doesn't turn out like I thought it would. Good to know that my thinking on this are actually workable

I've put stabilizer behind clothing for memory quilts and it wasn't a problem. I used Shape Flex, which is a woven stabilizer.

I have used ultra light weight fusible as the foundation for string and crazy quilt blocks. My LA'r has never complained.

If I were doing a test block I’d try French fuse interfacing. Extremely light and easily quilted.

Thank you for your replies. I had not heard of Shape Flex, or the French Fuse, so at least now I have an idea of what to look for.

Totally agree!!!
Better to speak with your LA'er before you do it, so there are no regrets later!

Just for clarification, are we talking about fusible interfacing? I immediately thought Wonder Under, which is a fusible used for appliqué. Probabaly, because that’s what I’m working with now ;-).