I made my "big" "big" board out of 1/2 plywood. Covered it with leftover batting and covered with a old cotton sheet. I zig-zaged a draw string around the edges (just like my ironing board) and tightened it up. I put in on a 2x4 table from Sams and away we go. I still take my old big board when I go to retreats. I just like the set up better than ironing on a regular ironing board. I guess I am spoiled.