I will use this container for my generator. I plan to cut holes in the left side to bring in air with the help of a small fan. On the left side a single hole to attach an exhaust from the generator . The generator is only 3500 watts and is 18x18x24 should this not work as I hope I will let you know! The Rubbermaid container is approximately 20x20x39 ID. The medium deck Box W/seat.