Steel Top and Side Gap
If your steel fire door has a gap larger than 1/8 inch, (+/- 1/16th), it is not code compliant. For both top and vertical gaps up to 1/2 inch, use the Crown Fire Door Stop System.
Steel Vertical/Latch Gap
For fire door gaps up to 1/2 inch on the latch side, use the Fire Door Stop Vertical System. For true smoke seal, use the Crown Fire Door Stop System. If latch engagement is an issue, add the Crown Latch Protector.
Steel Top Gap
Excessive clearances at the top of your steel fire door may be remedied using only the Fire Door Stop Top System. For true smoke seal use the Crown Fire Door Stop System.
Steel Center Gap
Excessive clearances of up to 1", at the center of paired steel doors, can be eliminated using our Vertical Extension. Choose the product that matches your door and hardware type.
Steel Excessive Undercut
For gaps of up to 2 inches at the bottom of your steel or wood fire door, use our fully adjustable Crown Fire Door Extension.