A maximum weight capacity of 220 lbs is the headline number here, and it is unusually high for a wooden bed of this size. It comes from how the frame is joined: nails combined with a mortise structure, where the timbers interlock into one another before being fastened rather than relying on fasteners alone to hold a butt joint together. That is what keeps a 47.5 by 17 by 20 in frame firm under a full load of wet soil. Inside, the bed runs 44.5 by 14.5 by 7.5 in, ample growing space for herbs, fruits, vegetables and whatever else the season calls for, laid out as one long run rather than divided up. Drainage holes provide both drainage and ventilation, letting water pass out of the base while air reaches the underside of the root zone. Solid fir wood gives the structure its durability and stability. The surface is left untreated and sanded smooth, which matters for anyone growing food: there is no coating or preservative in contact with soil that vegetables will root into, and nothing to flake into the bed over time. Installation is fast and follows simple steps. At 19.8 lbs the bed is light to position. Because the box is self-contained and needs no ground beneath it, it works as a planter solution on a deck or balcony as readily as indoors or out in the open. Specification: Overall Dimensions: 47.5" x 17" x 20" (L x W x H); Inner bed size: 44.5" x 14.5" x 7.5" (L x W x H); Max Load Capacity: 220 lbs; Net Weight: 19.8 lbs; Box Qty: 1; Package includes: 1 x Raised garden bed 1 x Instruction