Not lots of growers have the space for all that my fellow weather growers! There are 2 other ways to silent your centrifugal fans besides ducting and boxing (there loud) get 2 bungees and hang it of the ceiling...it works. After that.... tape the ducts and tape the fan around. You can also cover all walls with cardboard like a music studio. Good luck. It works for me and I live in a duplex house and my neighbor does not have the slighest idea of what I'm doing.