【No Box Srping Needed】：The twin floor bed for kids is a value conscious choice as it does not require a box spring or foundation. The 7 pcs plywood slats and center support bar of the each floor bed offer the needed support and can withstand daily wear and tear. Note: The slats are removable. 【with Fence and Door】：The four guardrail of the montessori floor bed are not truncated, so our twin floor bed is more stable than a regular floor bed. There is a small door that can be opened and closed, which increases the interest of the montessori floor bed and creates a more safety sleeping space. Fence Hight: 21.5". Note: The Door is removable. 【Sturdy Structure】：Made of high-quality pine wood, this children's bunk bed has a very sturdy bed frame that won't sway. 【Multi-function】：You can use it as a bed, or a child's play space, reading place and so on; Use your imagination to design your own fun space.