Yep, sandwiching is a pain. I am no longer, due to knee surgery able to be on the floor. So I made my own stretching frame. I bought framing boards in various sizes, stapled muslin strips, with an overhang. Four are the same size,(8ft) which will hold a standard size bed quilt. Two are 6ft in length. Using c-clamps I can adjust the length and width to sandwich any quilt from a standard size to a table runner. Anything bigger or for show, goes to the longarmer.