Product Dimensions: L*W*H=80.7''*76.4''*42.1'', maximum weight capacity: 900 lbs, efficiently packaged and comes in ONE box. Assembly instruction vedio is available if needed Underneath Storage & Space-Saving: Lift-up design allows large underneath space to get used. Suitable for space-eating and low usage-frequency belongings such as suitcases, storage bags, and boxes for out-season bedding and clothes, keep your belongings out of the landfill and keep rooms tidy Lifting Mechanism Design: With hydraulic lifting mechanism technology, you are able to pop up the platform effortlessly. No worries about the mattress sliding with the protective device back the frame