For an O table. I made rectangles of 2x4s 4 feet long and around 36 inches high. I made 3 of these and added anchor point on the inside. They get tied together with with 4 2x4s 8 feet long. I drilled holes in The 2x4 and the anchor points and used boots to hold them together. Each of the 3 frames had 2 casters one in the front and one in the back. The whole thing made 4 foot by 8 foot frame that could move so I could push it against the wall yet move it out to get to the back, if needed. The top was a 6x10 frame made of 2x4s and topped with plywood I think was 19/32. It was HEAVY. But I could stand on it and for a couple years put the Christmas tree on it with a Christmas layout.