The ultimate space saver for small rooms, the triple metal bunk bed will be the best addition for your sweet big family. Stacking three beds securely, the easy access guardrails keep your kids snug and secure, while the two built-in ladders offer easy access. With space-saving design and sturdy construction, this bed will provide great experience. Speciffication: Material: Steel Size: Twin over twin over twin Numbers of slat(upper/middle/down): 12/12/12 Function:Bunk bed Numbers of package: 2 Spring box: No need Assembly required: Yes Product Warranty: 1 Year Dimensions: Bed: 41.3'' x 78'' Total height: 78.7'' Top bed weight capability: 400lb Middle bed weight capability: 400lb Down bed weight capability: 400lb Top bed recommended mattress thickness: 6'' Middle bed recommended mattress thickness: 6''-8'' Down bed recommended mattress thickness: 8''-10'' Notes: 1. Manual measurement has been used, there may be some reasonable error. 2. Photo may slightly different from actual item in terms of color due to the lighting during photo shooting or the monitor's display.