90% Red oak panels, sides, top, and shelves made from red oak laminated plywood with matching red oak banding. Face material solid red oak 3/4 x 1 1/2 inches. Not material I would normally use but was a rescue job for a family member. Overall dimennsions approximately 35x24x12. Shelves are arranged in an asymetrical spacing with the bottom space being slightly large than the middle and the top space being slightly smaller. This was to allow for differentt sized books to fit without having to add moveable shelving and the associated hardware.