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Chicago Metallic® Drywall Grid Systems are heavy-duty, available in non-fire rated and fire rated construction and are built using HDG 40 steel. This drywall grid features seismically compliant stab-end cross tees and demountable hook-end cross tees, as well as 8” OC pre-notched main runners for custom forming on-site. Chicago Metallic™ Grid Systems are third party certified to meet ASTM standards and listed with ICCES Evaluation Services, reference report ESR-2631 for further details.

Performance Properties:
-Heavy duty acoustical grid design features (660/670) stab-end and (640/650) hook-end cross tee options
-Fire rated suspension system components are designed with expansion reliefs, making it suitable for fire-rated ceiling assemblies
-Eliminates the need for traditional framing and reduces onsite labor
-Sustainable: Minimum 25% recycled content, 100% locally recyclable
-Chicago Metallic® suspension systems meet a Class-A flame spread rating in accordance with ASTM standard E1264-08

Material

ASTM C 635 Heavy Duty (HD) furring runner classification; commercial quality steel, G40 hot-dip galvanized body and knurled face cap, 1-3/8" width, 1-1/2" height. Also complies with ASTM C 645 and ASTM C 754.
Note: A metallurgist should be consulted regarding the suitability of this product for the environmental conditions in which it is being installed.

Application Areas

Hospitals, hospitality, retail, ​lobbies, department stores, ​galleries, and residential high rise.
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Product Performance

Load Bearing Expand to view deflection table
 Component Load Test Data and Material
Main Tee Length Allowable Load per ASTM C635
Hanger Spacing
4' 6'
Furring Tees Length
Cross Tee Length
Furring Channel Length
1274.01Z 48" 17.0
634.00C 48" 8.2
640.00C 144" HD
644.00C 48" 14.3
650.00C 144" HD
654.00C 48" 14.3
664.00C 48" 14.3
674.00C 48" 14.3
677.00C 72" 5.24

To convert data into lb/ft2, divide on center spacing of component into lb/ft.
Note: 677 has an allowable load of 7.61 based on L/240 span deflection.

 Membrane Loading
Component Combination MR/CT
Hanger Wire / Cross tee Spacing
48"/24" 32"/16"
640.00C / 644.00C 6.9 10.4
640.00C / 644.00C / 1274.01H 5.5 6.2
640.00C / 664.00C 6.9 10.4
640.00C / 664.00C / 1274.01H 5.5 6.2
640.00C / 677.00C 2.62 3.93

Membrane loading is not applicable when these components are used in a fire rated assembly. Consult UL Fire Resistance ​Directory for installation details.

Fire Rated Assemblies Hanger Positions for Fire Rated Situations
This illustrates hanger positions for single fixtures in a field and are covered in the table. Refer to specific design numbers for allowable number of fixtures per square footage of ceiling area.
Non-Fire Rated Assemblies Hanger Positions for Non-Fire Rated Situations
This illustrates hanger positions for single fixtures in a field. Provide extra hangers for tandem fixtures.
Environment Materials and Resources (MR)
-Waste Management Planning
-Interiors Life Cycle Impact Reduction
-Environmental Product Declarations
-Sourcing of Raw Materials
-Material Ingredients
-Waste Management
Indoor Environmental Quality (EQ)
-Low-Emitting Materials
-Interior Lighting
-Acoustic Performance
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 Component Load Test Data and Material
Main Tee Length Allowable Load per ASTM C635
Hanger Spacing
4' 6'
Furring Tees Length
Cross Tee Length
Furring Channel Length
1274.01Z 48" 17.0
634.00C 48" 8.2
640.00C 144" HD
644.00C 48" 14.3
650.00C 144" HD
654.00C 48" 14.3
664.00C 48" 14.3
674.00C 48" 14.3
677.00C 72" 5.24

To convert data into lb/ft2, divide on center spacing of component into lb/ft.
Note: 677 has an allowable load of 7.61 based on L/240 span deflection.

 Membrane Loading
Component Combination MR/CT
Hanger Wire / Cross tee Spacing
48"/24" 32"/16"
640.00C / 644.00C 6.9 10.4
640.00C / 644.00C / 1274.01H 5.5 6.2
640.00C / 664.00C 6.9 10.4
640.00C / 664.00C / 1274.01H 5.5 6.2
640.00C / 677.00C 2.62 3.93

Membrane loading is not applicable when these components are used in a fire rated assembly. Consult UL Fire Resistance ​Directory for installation details.

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Accessories

148780_r1_ROC_GridDS_EPSFiles_SingleImages_Drywall
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Profiles and Accessories

Cross Tees

Component Length Height Face Width Slot Spacing Fire Rated Seismic Recycled Content Percentage Slotting Class Grid Coupling Type Duty HDG Coating Packaging  
Cross Tees RFN-NA  
Cross Tee_1200.jpg 48" 1-1/2" 15/16" No Slots Fire Rated C, DEF 25% No Slots, HD Stab-End HD G30 See Packaging Dimensions
Cross Tee_Drywall.jpg 48" 7/8" 1-3/8" One Slot at Midpoint C, DEF 25% One Slot at Midpoint Hook-End G40 See Packaging Dimensions
Cross Tee_Drywall.jpg 48" 7/8" 1-3/8" One Slot at Midpoint C, DEF 25% One Slot at Midpoint Stab-End G40 See Packaging Dimensions
Cross Tee_Drywall.jpg 72" 7/8" 1-3/8" 24" OC Fire Rated C, DEF 25% 24" OC Stab-End G40 See Packaging Dimensions
Cross Tee_Drywall.jpg 48" 1-1/2" 1-3/8" Three Slots 12" OC C, DEF 25% Three Slots 12" OC Stab-End G40 See Packaging Dimensions
Cross Tee_Drywall.jpg 48" 1-1/2" 1-3/8" One Slot at Midpoint Fire Rated C, DEF 25% One Slot at Midpoint Stab-End G40 See Packaging Dimensions
Cross Tee_Drywall.jpg 48" 1-1/2" 1-3/8" No Slots Fire Rated C, DEF 25% No Slots Hook-End G40 See Packaging Dimensions

Main Runners

Component Length Height Face Width Slot Spacing Fire Rated Seismic Recycled Content Percentage Slotting Class Duty HDG Coating Packaging  
Main Runners RFN-NA  
Furring Runner_Drywall.jpg 144" 1-1/2" 1-3/8" 8" OC C, DEF 25% 8" OC, HD HD G40 See Packaging Dimensions
Furring Runner_Drywall.jpg 144" 1-1/2" 1-3/8" 8" OC C, DEF 25% 8" OC, HD HD G40 See Packaging Dimensions
Furring Runner_Drywall.jpg 144" 1-1/2" 1-3/8" 8" OC Fire Rated C, DEF 25% 8" OC, HD HD G40 See Packaging Dimensions

Wall Angles & Channels

Component Length Height Face Width Slot Spacing Fire Rated Seismic Recycled Content Percentage Slotting Class HDG Coating Packaging  
Wall Angles RFN-NA  
Cross Channel_Drywall.jpg 48" 7/8" 1-3/8" No Slots Fire Rated C, DEF 25% No Slots G40 See Packaging Dimensions
Wall Track_Drywall.jpg 144" 1-9/16" 1" C, DEF 25% See Packaging Dimensions
Accessories RFN-NA  
Ultility Angle_Drywall.jpg 120" 1-1/2" 1-1/2" C, DEF 25% See Packaging Dimensions
Ultility Angle_Drywall.jpg 120" 1-1/2" 1-1/2" C, DEF 25% See Packaging Dimensions

Accessories RFN-NA  
C, DEF See Packaging Dimensions

Accessories

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Note: 677.00C has an allowable load of 7.61 based on L/240 span deflection
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