I use 4 2x4s, lay them out like a picture frame, hold the overlapped corners together with C-clamps (screw types). To keep them square (90 degree angles) line them up with the floor tiles in my kitchen. Then I raise them at an angle to the wall because most walls are 8ft. tall. It is a little cumbersome, but I can do it alone, but with help it is easier. The quilt layers get stretched separately and fastened with push pins or safety pins into the backing. 2x4s come in different lengths from 8 ft to 'do it in the garage'. Then pin or baste away.