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GRG Access Doors

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Information

GRG Access Doors made from glass reinforced gypsum are designed specifically for use with drywall suspension ceilings. An alternate to bulky metal doors, GRG Access Doors are taped and finished to integrate with the drywall ceiling with the minimum of visible lines. Doors are available in opening sizes of 9”, 12”, 18” and 24”squares to accommodate small to large access openings, CMC Access Doors meet Class A flame spread rating in accordance with ASTM Standard E 1264-08.

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• Installs and finishes in the same manner as drywall.
• Simply provide framing support for the exterior edges of the panel.
• Attaches with drywall screws.
• Taping and finishing is the same as conventional drywall finishing techniques.

Technical Requirements:
1. Size Requirements
Panels are defined by the opening size. Rough opening dimensions are an additional 6" added onto the opening size. Standard access panels are push-out type. Custom sizes are available.
2. Fasteners and Attachments
Panels are installed with standard supplies; screws are to be #6 bugleheads and joints use standard tape and joint compound. The panel has an edge thickness to accommodate 5/8" drywall, so shimming may be required if adjacent material is not 5/8" drywall.
3. Finishing (by installer)
Use same method as drywall.
4. Framing, Studs or Blocking
Substrate material is determined by job site conditions. The panel does not require regular framing, but can be connected to adjacent drywall using blocks or studs. The weight of the panel is 2 lbs./sq. ft.
5. Physical Properties
Shell Thickness: 1/8" to 3/16"
Fuel Contribution (ASTM E 84-80): 0
Flame Spread (ASTM E 84-80: 0
Smoke Index (ASTM E 84-80): 0
Combustion (ASTM E 84-80): Non-Combustible

Product Number Opening Pieces (Per Carton) Weight (Per Carton)
GRG Drywall Access Door and Frame
8501.00 9" x 9" 2* 10
8502.00 12" x 12" 2* 14
8503.00 18" x 18" 2* 18
8504.00 24" x 24" 2* 32
8505.00 30" x 30" 2* 44

*Includes Door and Frame.

GRG Access Doors

  • Installs and finishes in the same manner as drywall.
  • Simply provide framing support for the exterior edges of the panel.
  • Attaches with drywall screws.
  • Taping and finishing is the same as conventional drywall finishing techniques.
  • Flame Spread Rating / Class-A flame spread rating in accordance with ASTM standard E1264-08.

Think Green

According to the EPA, building related construction and demolition accounts for 26 percent of all non-industrial waste. This is why the use of environmentally responsible building materials is a critical component of the U.S. Green Building Council’s LEED certification process.

Chicago Metallic provides the following information for use in achieving LEED Green Building Rating System credits for the specification of Chicago Metallic products.

LEED Materials and Resources

MR Credit 4.1, 4.2: Recycled Content
Chicago Metallic Brand Ceiling Suspension Systems and Metal Ceilings are manufactured with the following recycled material content:

  • Material Total Recycled Type Content, % (by weight)
  • HRCmax Suspension Systems - Steel Minimum 25%
  • Standard Suspension Systems and Metal Ceilings - Steel Minimum 25%
  • Standard Suspension Systems and Metal Ceilings - Aluminum 100%

The post-consumer and post-industrial recycled contents are not reported due to the number of U.S. and international suppliers of the steel and aluminum materials used in manufacture. Contact Chicago Metallic for product and project specific LEED NC values.

LEED Letter

For a project specific LEED letter, please contact Chicago Metallic Customer Services at:
cmc-customerservice@chicagometallic.com

The Chicago Metallic Customer Service Team will provide your requested letter via email.

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Chicago Metallic Corporation 4849 South Austin Ave., Chicago, IL 60638 TEL 708-563-4600 USA & CANADA TEL 800.323.7164

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