To avoid risk of injury, bed must be installed to wall and floor structure by a professional or qualified person; two people are required for assembly Installation requires attachment to wood studs or masonry, removal of the baseboard, and drilling into the floor (if disassembly is required, holes may be covered with baseboards 0.5 inches or thicker); all necessary hardware is included Dual-mount wall bed mechanism attaches to floor and wall for ease of assembly and maximum stability and durability Do not use this product for children or pets under 50 pounds (22.7 kg); maximum weight supported with mattress is 1000 pounds (453.6 kg) Murphy bed accommodates most standard Queen mattresses (8-12 inches thick, 60-90 lb, 60 x 80 inches, no futons) to let you choose the most comfortable option (mattress not included, do not use with box spring)