[Sturdy Construction & Secure Guardrail]: This twin over twin bunk bed is made of quality tested steel frame with anti-rust powder coated finish, eliminating excess wobbling. Upper bunk's safety rail is 12.36"-height, high enough to protect from accidently falling off. Able to split: This metal bunk bed can be converted in to two individual beds. A perfect addition for growing teens, allowing them the freedom and space to host friends. The bottom bunk clearance is 12 inches, you can put a storage box under the bed to tidy up the clothes, toys or quilts. 【Essential Accessories】- These items are necessary accessories for family. You can use it for everything from beds to tables. [Overall Dimensions]: 77.4"L x40.9"W x 53.9"H. Weight Capacity:400 lbs for upper bed, 400 lbs for lower bed