This storage building features a special lid designed to prevent rainwater from accumulating. The durable weather-resistant resin construction helps protect the contents inside and is lockable (lock not included). Weather strips on all door edges seal out rain and snow. Double-walled resin interlocking panels assemble quickly and easily, and are designed to accommodate wood or metal shelves (shelves not included). Heavy-duty floors feature an angled ramp and support up to 1300lbs.