Made of 2 layers of 3/4 inch pine plywood glued and screwed together. I have to say, glue really makes a huge difference (as does wood filler ). The tricky part comes tomorrow when I attempt to stain it. It's turned out nice so far, and I don't want to ruin it with a bad stain job. (I will be practicing on some leftover ply) Do any of you guys have any preference on whether to use a rag or brush? I've read several articles on staining pine tonight, but I'm still a little nervous, and would love to hear any tips you might have.