Three pieces ship together and can stand apart: an upper twin loft, a lower twin bed, and a 4-tier bookcase that slots wherever the room allows. Stacked, they leave a 58.5-in upper deck with room below for a desk, a chair, or a small sofa in place of the second mattress. Each bed carries 309-lb and every bookcase shelf holds 204-lb. A 12.5-in guardrail and a 15-in entry gap border the top deck, and the included hardware anchors the frame to the wall.