So I decided to build two grow boxes from the ground up. I have a spare room on a different floor in my huse so I figured why not. Got some wood, a staple gun, some black/white growhouse plastic, some wood screws, lights, exhaust fans with carbon filters and anything else might need (I think). So away I go framing the first box.... And the boxes are 48x48 and 75 inches tall. I have a single 600w hps for each and the exhaust fans are 4 inch inline with carbon filters.