We got garage lower cabinets that are prefinished, need assembly. The are all drawers. They're 35" tall, 18" deep and 2' wide. Set them side by side = 6' length. Got a piece of melemite covered plywood 2' wide and 8' long. Had it cut to 74" long. It sits on top of the cabinets. Then use olfa 70" long cutting mat (it's in 2 pieces).
This means cutting surface and storage units.