A few years ago I made a lap quilt for a friend, using standard dimensions. However, she is quite tall and wanted to use it on her single bed as a topper. So, I removed all the binding, the top and bottom borders (including the quilting). Created piano keys borders which I attached to the top and bottom only (luckily still had the leftovers), attached more backing, inserted additional batting and the original borders and finished it off as usual. A real bonus for her was that I made new binding and atttached it much more nicely than I had originally.