The twin over twin bunk bed is an optimal space utilization for kid's room. The large bookcase and open storage shelves are designed to meet your daily storage needs, keeping kid's room to have a clean appearance. It is the selected natural material that makes the bunk bed stand out. Solid wood frame and slatted support play an important role in the stability and durability of the bed. The high guardrails perfectly provide protection for your kids while 3-step ladder provides easy access to the upper bed. Thanks to convertible design, you can install the ladder and bookcase either on the left or right based on your needs. Just bring this space-saving bunk bed home!FeaturesComes in 2 boxes and you may receive them on different days The bookcase and open shelves can well suit storage needs The shelf in the bookcase can be adjusted to 3 heightsSpecifications:Color: White Material: Pine Wood, Plywood,Engineered Wood, MDF Overall Dimension: 94" x 44" x 50.5" (W x D x H) Dimension of Bookcase: 41.5" x 14.5" x 37.5" (W x D x H) Dimension of Open Shelf: 15" x 14" x 11" (W x D x H) Recommended Mattress Size: Twin(not included) Recommended Mattress Thickness: 6" Height of Guardrails: 13" Net Weight: 146.5 lbs Weight Capacity of Upper Bed: 350 lbs Weight Capacity of Ladder: 200 lbs Weight Capacity of Shelf: 33 lbs Package Includes: 1 x Bunk Bed 1 x Instruction