In my sewing room in my house, I had the luxury of a table that held a top my ex made from a 4x8 foot plywood sheet. I would use the big clamps (have my own "clean" set) that are used in woodworking, etc- you can get them at Home Depot. Placed the backing on table, smoothed out and clamped, them same with batting and topper. I pin everything rather than glue-baste and I have not had any issues with wrinkles or pleats.