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Fire Rated System Design - UL G267

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UL G267

Steel Bar Joist

Fire Rating

hour

Restrained‐1 hour


Restrained‐1 hour


STC / Sound Test

N/A

System Thickness

N/A

Fire Rating

Restrained‐1 hour

Unrestrained‐1 hour

System Thickness

N/A

Floor Substrate - Min. 2-1/2 in. (64 mm) thick concrete
Steel Deck - Min. 9/16 in. (14 mm) deep 24 ga. corrugated steel deck
Structural Members - Steel bar joists spaced max. 24 in. (609 mm) OC
Finished Ceiling - Acoustical ceiling tiles
  • Floor Substrate - Min. 2-1/2 in. (64 mm) thick concrete
  • Steel Deck - Min. 9/16 in. (14 mm) deep 24 ga. corrugated steel deck
  • Structural Members - Steel bar joists spaced max. 24 in. (609 mm) OC
  • Ceiling Support - Suspension system
  • Finished Ceiling - Acoustical ceiling tiles
    • Panel Dimensions nom. in. - 24 in. by 24 in. by 3/4 in. [609 x 609 x 19]
    • Panel Dimensions nom. in. - 24 in. by 24 in. by 5/8 in. [609 x 609 x 16]
Remarks
  • Stud size is minimum unless otherwise stated in design.
  • For the most up-to-date information refer to the UL Fire resistance directory G267 ·