Most of the comercially available bass traps are fabric covered. Also, most of what I have found as examples of DIY bass traps are also fabric covered fiberglass. In my basement family room / music room / home theater I would like to install some floor to ceiling DIY bass traps in the wall/wall and wall/ceiling corners. However, as you may be able to guess from my log-in name, I have a fairly big and busy family. I am concerned that something sturdier than cloth covered fiberglass is needed. Instead of coverning the rigid fiberglass with cloth, could I use something like eighth inch plywood? From what I understand of sound wave physics (which isn't a lot) the bass waves should travel through the thin plywood and then the fiberglass behind the plywood would do its magic. The plywood in front of the fiberglass would be more resistant to child induced trauma and less likely to be chewed by the dogs. It would also add the convenience of being able to be finished to match the wall, making it less obtrusive (higher WAF). I understand that the plywood would keep these corner traps from being broad band - since it will reflect back the higher frequencies - but I am only looking for bass trapping from these. I have other things planned for first reflections. Does anyone have any input here? Am I correct in thinking this will work for a bass trap, or am I all wrong?