★This bed is "customer assembled furniture"★ For "customer-assembled furniture," we ask that customers unpack, assemble, and install the product themselves. France Bed Multi-Las Super Spring Mattress Included ■ Overwhelmingly sturdy design The bed is creaky and uncomfortable... It's hard to find a sturdy bed that you can use for a long time... Eliminate all those worries at once! It is extremely sturdy and provides excellent support for your body, so you can use it for a long time! ■Rugged design with a load capacity of 600 kg A 30-minute vertical load test in accordance with JIS standards was conducted on the center of the floor at a domestic testing institution. It has a sturdy design that has passed a test of 11,768N (about 1,200kg)! ●Sturdy floorboards The floorboards are wider than ordinary slats, and have 12 bars to provide firm support for your body. ●Can also be used with a futon. Usually, beds cannot be used with futons because the floor board is easily subjected to weight. However, this product's box structure and slats are made to be highly durable, so you can use it with a futon without worry.