Wood NO BOX SPRING NEEDED: Reliable and evenly spaced wood slats are designed to support and extend the life of your mattress without the need for a box spring; NO MATTRESS HEIGHT RESTRICTION: This bed accommodates a wide range of mattress heights and thicknesses. DURABLE DESIGN: Sturdy low profile frame is constructed with solid hardwood and a clean low-VOC finish for longevity AMPLE UNDERBED STORAGE: Provides 12 inches of total height, including 6.02 inches of clearance space beneath the bed, perfect for storing odds and ends EASY TO ASSEMBLE: All parts, tools, and instructions conveniently arrive in 1 box; ASSEMBLED DIMENSIONS: L:84.4" x W:42.6" x H:12.44" WEIGHT CAPACITY: 600 lbs