Chicago Metallic® GRG Access Doors are an alternative to bulky metal doors and are made from glass reinforced gypsum, simply attach to framing and tape and finish the same as conventional drywall. Access doors allow for planed plenum access through a finished drywall ceiling to easily inspect and maintain mechanical systems. These access doors are available in 9”, 12”, 18”, 24” and 30" squares to accommodate small to large openings. These access doors meet Class A for flame spread, per ASTM standard E1264.
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