There are a couple of options there. One is thick plywood and then cover it all with fabric panels, another is to use the plywood as the first layer and then drywall over that. I've seen that done from time to time and the added mass of the plywood is nice, but there is a BIG price jump from say a $5 sheet of 5/8" drywall and a 3/4" sheet if plywood. The cheap plywood has voids in the layers and wants to curl on the edges and corners even after attaching to the studs. Plus drywall is heavy enough, but I can carry a 4x8 sheet of 5/8" drywall (with plenty of effort of course), but a 3/4" sheet of plywood is just dang heavy. I struggled with that when building my seating riser.

So yes, if you can pay the price for the material and the price on your back/arms, it will help. It just takes more efforts all around to cut/trim/etc as well.


Farewell - June 4, 2020