Features 【Space-Saving Bunk Bed with Storage Shelves】Ideal for small spaces, this twin-over-twin bunk bed features three handy shelves under the lower bunk—perfect for storing books, decor, and bedtime essentials while keeping the room organized. 【Safety-First Design】Equipped with full-length guardrails on the upper bunk and a secure slat system to keep mattresses firmly in place. Offers peace of mind and comfortable rest—recommended mattress thickness not exceeding 6 inches. 【Sturdy & Reliable Build】Reinforced guardrails and individually crafted, quality-tested wood shelves ensure lasting stability and safety. Smooth finishes and robust construction prevent accidents and support daily use. 【Flexible Ladder & Layout】Maximizes floor space with a vertical design perfect for shared rooms or guest use. The ladder can be installed on either side, adapting to your room's layout and needs. 【Easy Assembly with 2-Box Delivery】Includes clear instructions and all necessary tools for straightforward setup. Delivered in two secure boxes for convenient handling and hassle-free installation. Specification Material:Solid wood+MDF Size:Twin over Twin Color:Natural/White Overall Product Dimension:94.5''L x 42.5''W x 63.7''H Each Bed Dimension:75.2''x 39.3'' Total Height:63.7'' Recommend Mattress Thickness of Each Bed:4-6'' Overall Product Weight:145lbs Each Bed Weight Capacity:400lbs Numbers of Package:2 Spring Box:No need Assembly Required:Yes