Solid wood. VERY heavy. When unboxing the side table I was initially very disappointing with how the cantilevered drawers seems to jiggle and were not locked into place. Made them feel very unstable and worried me that the weight and forceuse over time would wear them down quickly. How can something so solid and heavy be expected to support its own weight Why would the drawers not have legs as well and just be a freestanding unit However, when I got all the brackets installed including the underbelly ones that I almost forgot, it feels much more solid than I would have expected it to and I no longer have any worries. This bed looks amazing and I have no regrets. There is a part where you have to screw the mattress slat support beam into the frame of the bed. Due to the shallow depth of this part of the frame, the screws aren’t very long or deep or they’d go through. They didn’t grab on to the wood for me and spin endlessly. However, it’s not an issue because the bar sits in a nook, the heavy wood slats lay horizontally over this, and the mattress goes on top so it’s a non issue. Not even sure why they have us do that part to be honest. Regardless, it’s ineffective and if necessary for some unrealized reason, they need to have pilot holes with inlays like the rest of the screws because this does not work. Again, not an issue that I can see. Highly recommend.