When a fire-door inspection fails, the finding is often excessive clearance -- a gap at the head, jambs, meeting edge, or floor past NFPA 80. Smoke and fire can pass that opening, and the assembly stays out of compliance until the gap is closed. NGP GapGuard kits do that on the existing rated door and frame -- without replacing them.

Shop by where the gap is: Frame Solutions for head and jambs, Door Solutions for the top, meeting edge, and bottom, or Fire Door Accessories for leftover hardware preps, fire caulk, and the shims that put the latch back into the strike.