drywall penetrations in hmf

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F-Series frames are available without returns: Fire Rated frames must have welded corners. Frames must include weled in wood or steel stud anchors. Installation requirements: Frames must be...
Wallboard must penetrate a minimum of ½” into the hollow metal frame, based on NFPA Pamphlet 80, (page 80-2, figure A.4.6.3.1) .