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Call out size

Greenhouse Windows - By Tru-Frame ...Windows | FAQ | Dealer Locator | About Us | Contact Us Greenhouse Window Installation Instructions Installation Guidelines For New Construction Frame rough opening equal to window call out size. Rough opening should be plumb, square, and sill should be level. For stucco applications furring strips of at least 3/8" thick, should be used around... See #1 1: http://www.greenhousewindows.com [c861823]