Wood Center Gap

Vertical Fire Door Extension for Paired Egress Wood Doors

Vertical Fire Door Extension for Paired Egress Wood Doors

  • UL listed for up to 60 Minutes on Wood Composite Doors.
  • UL Listed for excessive clearances Up to 1″ between doors.
  • Does not increase or decrease your fire door assembly’s existing fire rating.
  • Tested Under NFPA-252, ANSI/UL 108 with Hose Stream, UL 10C, CAN/ULC S104-10
  • Easy Installation; Does not require removal of doors.
  • Concealed vertical rod hardware requires two 5″ extensions.
  • US Patent Nos. 9,151,106 & 9,518,422
  • Canadian Patent Nos. 2,846,726 & 2,939,255

Vertical Fire Door Extension for Paired Wood Doors

Vertical Fire Door Extension for Paired Wood Doors

  • UL listed for up to 60 Minutes on Wood Composite Doors.
  • UL Listed for excessive clearances Up to 1″ between doors.
  • Does not increase or decrease your fire door assembly’s existing fire rating.
  • Tested Under NFPA-252, ANSI/UL 108 with Hose Stream, UL 10C, CAN/ULC S104-10
  • This is a handed product; LH/RH Active Doors, LH/RH In-Active Doors.
  • Easy Installation; Does not require removal of doors.
  • US Patent Nos. 9,151,106 & 9,518,422
  • Canadian Patent Nos. 2,846,726 & 2,939,255

Vertical Fire Door Extension for Wood Double Egress Doors

Vertical Fire Door Extension for Wood Double Egress Doors

  • UL listed for up to 60 Minutes on Wood Composite Doors.
  • UL Listed for excessive clearances Up to 1″ between doors.
  • Does not increase or decrease your fire door assembly’s existing fire rating.
  • Tested Under NFPA-252, ANSI/UL 108 with Hose Stream, UL 10C, CAN/ULC S104-10
  • This is a handed product; LH/RH Active Doors, LH/RH In-Active Doors.
  • Easy Installation; Does not require removal of doors.
  • 2-5/8″ Standard Widths, 5″ available for concealed vertical rod hardware.
  • US Patent Nos. 9,151,106 & 9,518,422
  • Canadian Patent Nos. 2,846,726 & 2,939,255

--- All Products US Patent Nos. 9,151,106 & 9,518,422 | Canadian Patent Nos. 2,846,726 & 2,939,255 ---

THE CROWN FIRE DOOR STOP SYSTEM IS TESTED AND LISTED WITH UL!

The Crown Fire Door Stop System is UL approved for excessive clearances on wood and steel fire doors.The Crown Fire Door Extension has been UL approved to correct excessive undercuts on wood and steel fire doors. Applying these products does not increase or decrease the fire door assembly’s existing fire rating.

Crown is the ORIGINAL, UL-listed, 90-minute wood door solution and the ONLY 180-minute steel door solution for excessive clearances and gaps.