Space limitations doesn't permit me to build a large FLAT assembly table. What I use now is my portable outfeed table (actually a heavy metal cabinet on casters with leveling legs), but it isn't quite wide enough to assemble many of my projects. I'm considering building a removable top (torsion box) that can be placed on top to increase it's size AND be as flat as possible. When not in use it will be stored against a wall. I can't leave the box on top of the cabinet to do double duty as an outfeed table because the cabinet is too high for a torsion box to be level with the TS.
Will 1/4" MDF or 1/4" hardboard be thick enough to maintain a rigid structure? I want it as thin as possible so the height of table isn't increased any more than necessary when the torsion box is in place, so what should be a minimum height of the grid? I'm guessing that if the grid is too short it won't provide good rigidity?? The torsion box will be 4'x6' and will be supported by a base table of 26"x45" so there will be 48-26=22/2=11 inches of overhang on the width (each side) and
72-45=27/2=13.5" overhang in length on each end. The heaviest object I'd expect to be built on the table would be under 100 lbs.Requirements: light as possible since it's movable, and thin as possible yet sturdy.
Dave
Dave