Durable Build: Floor bunk bed is built with durable engineered wood and color-matched hardware to balance sturdy construction with sleek style. Each bunk has wooden slats and a metal support bar that contribute to a 400 lb. weight capacity per bed. Safe for All Ages: This twin over twin bunk bed for kids stands 49” tall with 14" guardrails and a bottom bunk that sits 2” off the ground, making it safe for younger kids. Flexible Design: Ladder can be installed on either end of this twin bunk bed for kids which gives you the best fit for your space. Easy Assembly: Montessori bunk bed is easy to put together with necessary tools, hardware, and instructions included. Dimensions: This small bunk bed for small room measures 87.75” L x 42” W x 49.25” H and features 29.75" of headspace between bunks. Short bunk bed for kids is compatible with standard twin-size mattresses between 5 and 8 inches thick.