Save floor space with this white metal Twin XL over Twin XL bunk bed. The powder-coated steel frame includes 40 metal slats, upper-bed guardrails and reinforced lower legs. Plastic slat stoppers help reduce movement noise. Under-bed clearance: 9.8 inches. Weight capacity: upper bed 350 lbs; lower bed 500 lbs. No box spring needed. Assembly required; instructions and numbered parts are included.