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Product Performance

Load BearingExpand to view deflection table
 Component Load Test Data and Material
Main TeeLengthAllowable Load per ASTM C635
Hanger Spacing
4'6'
Furring TeesLength
Cross TeeLength
Furring ChannelLength
1274.01Z48"17.0
634.00C48"8.2
640.00C144"HD
644.00C48"14.3
650.00C144"HD
654.00C48"14.3
664.00C48"14.3
674.00C48"14.3
677.00C72"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 / 644.00C6.910.4
640.00C / 644.00C / 1274.01H5.56.2
640.00C / 664.00C6.910.4
640.00C / 664.00C / 1274.01H5.56.2
640.00C / 677.00C2.623.93
650.00C / 654.00C6.67.7
650.00C / 654.00C / 1274.01Z5.56.2
650.00C / 674.00C6.67.7
650.00C / 674.00C / 1274.01Z5.56.2
650.00C/677.00C2.623.93

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 AssembliesHanger 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 AssembliesHanger Positions for Non-Fire Rated Situations
This illustrates hanger positions for single fixtures in a field. Provide extra hangers for tandem fixtures.
EnvironmentMaterials 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 TeeLengthAllowable Load per ASTM C635
Hanger Spacing
4'6'
Furring TeesLength
Cross TeeLength
Furring ChannelLength
1274.01Z48"17.0
634.00C48"8.2
640.00C144"HD
644.00C48"14.3
650.00C144"HD
654.00C48"14.3
664.00C48"14.3
674.00C48"14.3
677.00C72"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 / 644.00C6.910.4
640.00C / 644.00C / 1274.01H5.56.2
640.00C / 664.00C6.910.4
640.00C / 664.00C / 1274.01H5.56.2
640.00C / 677.00C2.623.93
650.00C / 654.00C6.67.7
650.00C / 654.00C / 1274.01Z5.56.2
650.00C / 674.00C6.67.7
650.00C / 674.00C / 1274.01Z5.56.2
650.00C/677.00C2.623.93

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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Sample Order Form: Chicago Metallic Drywall Grid
Sample Order Form: Chicago Metallic Drywall Grid

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