1.Bunk Bed &Loft Bed & Platform Bed Frame: This adjustable mental bed frame allows you to adjust it into a bunk bed, loft bed and platform bed. It flexible and multi-purpose. If you have any question about this bed frame, please feel free to contact us via our official email: csr@merax.com 2.Metal Bed Frame Dimensions: The lower full size platform bed frame is 78.1’’*56’’*11.8’’(L*W*H). The upper twin size loft bed is 78.1’’*41.4’’*52.7’’(L*W*H). Weight Capacity of the upper bed is 250LBS and lower bed is 350LBS. This multifunctional bed frame is perfect for kids and adults. 3.Super Storage Capacity: 11.8 inches high storage space under the platform bed frame full size to store all your essentials without cluttering the room. 4.No Box Spring Needed: This twin over full size bed frame is designed with heavy duty steel Slats support, so it does not require a box spring or any other additional foundations. 5.Quick Assembly: Metal bed frame twin full features reinforced construction that can bear heavy weights with no noise or no squeaking. The instructional manual is included.