Okay, I truly understand the back. I took two 42" by 25" tables and put them up on the risers side-by-side and walla!!! Wonderful, no more crawling on the floor. I put the pinned quilt on the tables and started from the middle and worked my way out. Today was the first day I tried it and no MORE FLOOR!! The quilt slid nicely and I could baste it very nicely. You can find the tables out there on sale for $25-$35. Nice heavy-duty plastic tops and light-weight to move where ever I need them. They also hold a sewing machine very well.