I have spray basted on the floor and on tables. By far the easiest for me is using my design wall. My wall is 8ft wide and about 7 ft tall (in the lower level). I can pin the backing up as I am getting started, but the batting on my design wall holds it pretty good. I use plastic painters tarp on the floor. It hasn't been a problem for me. Also I run a small fan on low. I got it together quickly like that. It was a quilt that was about 60 X 72, that took me quite a while to quilt. The spray held very good while quilting. From now on, I will spray baste on my design wall, versus pins or hand basting. Such a time saver.