This white twin over twin metal bunk bed adds modern style and comfort to any bedroom while saving space. Crafted with a strong steel metal structure, it ensures durability, stability, quiet noise-free use, and large bearing capacity, plus safe stairs for easy upper bunk access. No box spring is needed—it works with all mattress types including memory foam. The package includes clear instructions, all parts and tools for hassle-free assembly. Weight limit: 250/350 Lbs. Assembled dimensions: 78.00"L x 41.75"W x 65.25"H product weight: 77.44 lbs. Delivered as 1 set in 1 carton (package size: 81.10"L x 14.57"W x 5.90"H, 88.00 lbs).