lookin at what, 32 sq ft of growing space unless u make it into 2 grow rooms(shelving)which then u now have 64 sq ft of growing space.optimum lumens per sq ft with auto CO2 setup is 3000 lumens.3000 X 64 is 192,000 lumens yur going to need or 96,000 lumens at 32 sq ft.i would definitely go with Mylar for yur reflection.4 6"inch pots per sq ft X 32 = 128 1 gallon pots or 256 1 gallon pots with cuttings in each pot already in flower.if u do the screen method u should be able to yield at least 1/2 oz per pot or 2 0z.' s per sq ft which would be 64 0z.'s at 32 or 128 0z.'s at 64 sq ft.U should be able to turn this at least every 3 months or sooner. so 4 crops a year at 128 0z.'s per crop(or 7 lb.'s at 32 sq ft and 14 lb.'s at 64 sq ft) X 4 equals 28 or 56 lb.'s a year!now that's serious PWNDAGE!