This Black Twin Over Full Metal Bunk Bed adds modern style and comfort to any bedroom while saving space (note: not convertible, to be used stacked only). 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. It features 13 inches of under-bed storage space, perfect for stowing extra odds and ends. No box spring is needed, compatible with all mattress types. The package includes clear instructions, all parts and tools for hassle-free assembly. Assembled: 78.70"L x 56.30"W x 65.00"H weighs 93.50 lbs.