...BigT...vac tables are for setting up cheaply constructed walls & ceilings using wood and Styrofoam insulation...then gluing them all together in one big panel...they are mainly for huge panels which are obsolete now as the trucking/trailer industry found out over just a short 5 years....they de-laminate in moisture and crack/split open-I have repaired too many with my un-patented process called "MASS SUCTION"[which is really a HVAC TOOL] and a rubber suction cup from a glass delivery van+ epoxy glue thinned down-injected with a needle ....it is a messy process that gives a perfect repair that lasts till the next crack[4 inches away] gets water in it and the whole process starts over again....it has been largely been left to rot by the wayside as the panels only last for a few years at most-[if you keep them inside away from the weather/water ;>
]..... most guys are building panels on board with a steel/aluminum cage-finished on the inside and out that can be repaired-won't rot and split open-allow for a certain amount of movement and can be insulated very cheaply[pink stuff or styrofoam].....Essex Trailers were a good example.....geofkaye