Fire Door Extension

fire-door-extension

  • UL listed as a Miscellaneous Fire Door Accessory
  • UL tested and listed to allow for excessive clearances up to 2″ on steel and wood doors
  • UL fire-rated for up to 90 minutes
  • Does not increase or decrease your fire door assembly’s existing fire rating
  • Tested under NFPA-252 with hose stream,  ANSI/UL 10B with hose stream,  UL 10C,  CAN/ULC S104-10
  • This is a handed product; RH, LH, and, for steel doors with no bevel, non-handed.
  • Easy installation; does not require removal of the door.
  • Each UL labeled Crown Fire Door Extension, $225.

--- All products patent pending in the U.S. and Canada ---

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. All Crown accessories are fire-rated for up to 90 minutes. Applying these products does not increase or decrease the fire door assembly's existing fire rating.
No other products are UL approved, with a 90-minute rating, specifically for excessive clearances.