A slatted-rail bunk with a weathered gray finish that fits a beach-house room as well as a plain kid's room, and it is certified to the federal bunk bed safety standards. This includes guardrails on the upper bunk, a five-step angled ladder, slat sets for each bed, and a hanging bunk tray that clips to the top rail for a book or water bottle. Night and Day's Brushed Driftwood finish is hand-rubbed with a light texture you can feel. Use mattresses up to 6 inches thick so the top guardrail stays at least 5 inches above the mattress. Twin over twin measures 81.5 inches long, 42.8 inches wide and 67.2 inches tall. Twin over full widens the base to 58.1 inches. Plan for an 8-foot ceiling and keep the ladder side clear.