Filler plates are hardware used in doors and frames to cover pre-drilled holes for locks and hinges. They can be used to fill incorrectly drilled holes, cover old cutouts, and improve appearance, noise reduction, privacy, security, and protection from moisture and air infiltration. Filler plates come in different shapes, sizes, and finishes, and are made of steel or aluminum.
A filler plate is a piece of hardware used in a door or door frame. Most door and frame manufacturers create cutouts in these components at the factory, which makes it easier for builders to install the hardware once the units are in place. Instead of using special tools to cut holes for locks and hinges, the installer simply installs these hardware devices into the pre-drilled holes created at the factory. In the event that one of these holes is not required, a blanking plate can be used to hide the hole from view and improve the appearance of the door or frame.
Filler plates are used in a variety of applications. They can be used to fill an incorrectly drilled hole or hinge prep area, whether created in the field or at the factory. These plates are also useful for covering up old cutouts when old hardware is being replaced. In some buildings it is possible to use a filler plate on doors designed for future use. This allows the building owner to simply remove the plates and install the hardware once he is ready to use that section of the building.
By covering holes and cutouts in the door and frame, a filler plate can have a significant impact on the appearance of these units. The plates also block noise from passing through these openings and enhance privacy. When a filler plate is used on an exterior door, it can improve security and protect the building interior from moisture and air infiltration.
Each hardware manufacturer typically produces its own line of filler plates, designed to fit the cutouts of that particular line of hardware. Most make separate filler plates for hinges, latches, and lock openings on the door, as well as plates designed to fit latch and latch cutouts on the frame. The filler plate can be round or rectangular, depending on the shape and design of the hardware. Most come with screws designed to fit holes in the plate as well as those in the door or frame.
A filler plate can be made of cold rolled or galvanized steel. Those used on aluminum doors can also be made from aluminum, so they blend better with the surrounding surface. Most come in a number of finishes to match the door or any nearby hardware, although these plates can also be painted to hide their appearance.
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