Don-jo BF135PC Hole Filler Plate Prime Coat Finish

Product Description

The DON-JO BF135PC is a hole filler plate designed to cover and conceal oversized or misdrilled holes in doors and door frames. Manufactured by Don-Jo, a supplier of architectural hardware for the door and lock industry, this plate measures 3.63 inches by 3.63 inches and is sold with a prime coat finish ready for field painting to match the surrounding surface. At 0.4 pounds, it is a lightweight, low-profile solution for repair and renovation work. Licensed locksmiths, door hardware installers, and general contractors reach for this plate when an existing hole or cutout no longer aligns with new hardware or must be closed out entirely.

This filler plate is suited for residential and light commercial door applications where an unwanted hole needs to be covered cleanly before new hardware is installed or a door is returned to service. Typical scenarios include replacing a cylindrical lockset with a mortise unit, relocating a viewer or knocker, or patching a cutout left behind after hardware removal during a renovation. The prime coat finish allows the installer to paint or coat the plate on-site to blend with the door surface.

Key Features

• Covers holes up to 3.63 inches in diameter or width
• Prime coat finish accepts field-applied paint for a finished appearance
• Compact square profile at 3.63 inches by 3.63 inches fits standard door face layouts
• Lightweight construction at 0.4 pounds minimizes added mass to the door
• Sold individually, with case quantity of 10 units available for contractors stocking multiple repairs

Compatibility

Designed as an OEM-style replacement and repair plate for standard residential and light commercial doors where existing holes or cutouts require coverage prior to new hardware installation.

Installation Notes

Installation is typically performed by a licensed locksmith, door hardware technician, or qualified general contractor. Before installing, confirm the door is fully closed and secured to prevent movement during fastening. The prime coat finish should be painted prior to or immediately after mounting to prevent surface oxidation. Follow applicable building and fire codes when installing on rated door assemblies, as coverage plates on fire-rated doors may require listed or labeled hardware.