have had good luck with finding a straight hollow core door and plopping it on top of the table,then I apply a layer of Formica to one side. now perfect for plan drawing, other side gets layer of ceiling tile - Celotex sheet, etc - for pinning parts to. don't forget clear plastic sheet when glueing. double duty and can be stood in the corner when not used. mine is 4 years old with quite a few planes built on it and still usable. dick