I found a lady on Youtube who made her own and then I sort of copied it. I got a 2" thick piece and a 1" piece. Hubby showed me how to use skill saw (really easy) to cut around an opening I had traced for my machine. Really light weight and so easy to assemble and disassemble when I need the guest room foe company. I love having a flat surface to sew on. i use it all the time, not just for quilting. Mine turned out to be about 4'X5. But the sheets are the size of plywood so you can make it whatever you can use. I covered mine with thick plastic (vinal) from Joanns. Otherwise, fabric catches on the rough edges. Hopes this helps.