This metal twin over twin loft bed with desk and shelves looks great while providing a practical sleep + store + study solution in any space.Built to last, the combo twin Loft bed with desk and shelves offers a classic look that will never go out of style and you’ll enjoy for years to come.- 2 Bunk Beds in 1: This twin-over-twin bunk bed features one twin size loft bed with desk and bookcase and one twin platform bed for accommodating your kids or any overnight sleepers. - Superior Quality: Manufactured from commercial grade steel, the upper loft bed features a stable foundation.- Strong + Stable: High, Top bed weight capability: 250lbs , Down bed weight capability: 250lbs, safely holds kids to adults. metal slats and support bar for added reinforcement.Description:Material: Steel +MDFSize: Twin over twinColour: BlackNumbers of slat (top/down): 21/21Function: Bunk bed/ Loft bed & platform bedDecoration: With shelves and deskNumbers of package: 2Spring box: No needAssembly required: YesDimensions:Top bunk bed: 38.9'' x 74.8''(inner size)Down platform bed:38.9''x 74.8''(inner size)Total height: 66.9”Top bed weight capability: 250lbsDown bed weight capability: 250lbsTop bed recommended mattress thickness: 6”Down bed recommended mattress thickness: 8~10”