Backing size.
I made a large quilt that I want to put on our queen size bed as a spread and that will also cover both the mattress and box spring. I am going to add a 12"panel to the backing so I need to know how much fabric I would need. I am open to the wide (106") fabric and I would add the 12" piece down the middle or use regular size width fabric, also using the 12" panel. I don't know how much fabric I would need. I have an idea by using my figures but would like what some of your ideas would be. Right now the top measures 110 inches wide and 98 inches top to bottom. The extra 12" panel would go top to bottom and it is the same piecing and pattern as the quilt top. I know that is large but it has to be that for the size I want. I am 78 and my mind just doesn't work as good as it used to. Will appreciate any help. And guess what - I am going to FMQ it so that should be interesting. I have machine quilted large queens so what's a few more inches!!!?