ORIGINAL: jrcaster
You don't need that kind of precision to build a balsa model airplane. For a building surface that size a hollow core door will be plenty sturdy and precise, not to mention much lighter. You can go as cheap as a couple of saw horses for stands, or build an elaborate structure to hold the door.</p>
This is what I use with a piece of sheet insulation on top. Mine sits on a folding table. When I am through I just put it back in the barn. (I build in the house now other room availible outside.)
Alan