Well, I only need a little bit of wood (20" x 30" x 3/4") to build a speaker box. The other one is built from leftover birch ply (home depot) from my dad's bookcase project. I don't want to buy a 4x8 sheet of anything, so I thought maybe I'll go with quarter sheet of particle board for $5. Also, I saw some pine panels that could work also and for cheap. Either way, I'll probably end up covering it up w/ a laminate. So are pine panels okay?