My cutting table is 36 x 72". I make a lot of large quilts and I also use it for sandwiching my quilts. I have an ironing pad on top of some old kitchen cabinets that is 20 x 60". I am fortunate to have a sewing room that is roughly 20 x 20 ft. with one area for laundry which is handy for pre-washing my fabric. I have also worked on a card table so I don't know what the adequate size would be.