Sturdy base with hardened bolts for the frame, mixture of good quality and medium to low quality manufactured wood. Slats feel terrible and like they may break at any time with the cheap plastic holders on them. One box arrived and then the rest of it arrived a few days later with no shipping number or idea when it would arrived per the customer support. LOTS of pieces and takes about 2 hours to build. Better quality fasteners and screws than any of the other products I’ve ordered from the same designer.