[QUOTE=DFDubb;513351]IMO build the biggest cage / screen that you can fit even if you don't fill it up with the image. Mine is 18x9.5 and I have about 8 inches on both sides not being used by the image, but I'm glad it's there. I think your getting hung up a bit on the perfect screen size to projector mating combo. Projectors wear out, tech changes, you might find 1 you like better, etc...Your screen is likely a 1 and done deal, do it right
Input much appreciated.