What do you call the plate behind a door knob
David Perry
Updated on May 25, 2026
Trim: Sometimes called a rose, the trim is a decorative plate attached to the door under the knob or lever.
What is the plate on a door called?
A strike plate is the metal piece attached to the door jamb. As the door closes, the latch mechanism strikes the plate mounted to the jamb and the strike plate catches the mechanism and holds the door closed. Strike plates are generally the same finish as the door knob set and mount to the jamb with screws provided.
What is a strike plate on a door?
Strike Plate This is the plate the latch-tongue, or deadbolt-tongue will connect with. It should sit flush with the door jamb. Any passage or privacy set needs to have a strike plate for the door to latch. Additionally, deadbolts need a strike plate to properly lock.
What are the names of the parts of a door knob?
- Knobs and Handles. The common door lock will have two knobs or handles—one on the inside of the door and one on the outside. …
- Rosette. The rose or rosette is typically a round plate that serves two functions. …
- Lock Cylinder. …
- Spindle. …
- Latch Assembly and Spring Bolt. …
- Deadlocking Plunger. …
- Strike Plate.
What is a door sash?
A sash is a moveable piece of glass that is used in a window or door. Several sashes are typically joined together to make a frame of glass panels. … A sash can also be used in cabinetry to create unique cabinet doors.
What is a mortise plate?
A mortise refers to the pocket cut into the door where the lock is fitted. … Strike plate–the metal plate affixed to the door jamb with a hole for the bolt of the lock to slide into, keeping the door closed. A skeleton key to operate the locking and unlocking functions of the lock body.
What is a door mullion?
Mullion. A mullion resembles a stile. It is the vertical component that separates two panels located in the middle of the door between the rails.
What is a Jimmy plate?
The Jimmy Plate is designed to work in conjunction with the BOLT BUDDY. Many commercial doors have hollow steel frames. … with the door in a closed position the frame and door will be interconnected thus helping to prevent the frame from being crushed and pulled away from the extended deadbolt.What are the parts of a door frame?
- Door frame. The door frame is the entire framework supporting the door, including the sill, jamb and head. …
- Sill. The door sill is the very bottom part of the door frame that rests on the floor.
- Jamb/door jam. …
- Head. …
- Panel. …
- Astragal. …
- Fixed panel. …
- Door sweep.
Latch guards are metal plates that cover exposed latches and keep them from being tampered with. In order to gain forced access, a latch may be cut or pryed; but a latch guard can keep this from happening.
Article first time published onWhat is a door latch?
Door latches are a type of mechanical hardware used to fasten doors and keep them shut. A door latch uses a fastener attached to two ordinarily separated surfaces, most often the door and the frame, to prevent the door from swinging while still allowing normal operation when the latch is released.
What are door frames called?
Door casings and linings are commonly called door frames, but these are actually used for exterior doors.
What is a door header?
A header is a beam that spans the opening for a doorway, window, skylight, or stairway. … Now, the word header refers to a beam-like support in wood-frame construction. The header spans an opening for a window or door, or it is a cut-out in the roof or floor for a skylight, chimney, or staircase.
What is door hinge?
Hinges are the hardware used to attach a door to its frame, and are the pivot point for opening and closing the door. Whether you are replacing an old door or hanging a new one, hinges are an important part of the structure.
What is a horizontal mullion called?
A mullion is a vertical element that forms a division between units of a window or screen, or is used decoratively. … Horizontal elements separating the head of a door from a window above are both a head jamb and horizontal mullion and are called transoms.
What is a transom door?
Transoms are stationary sections of glass placed above an entry door and its sidelights. They allow natural light to stream into your entryway. With two styles available to choose from, you can add design interest with a rectangular transom or elliptical transom.
What is a mullion insert?
Actually, the name of this cabinet insert design is Mullion (or Muntin), which it’s basically an accent glass door with narrow strips of wood that divide the individual panes of glass – or the grids that divide your glass kitchen cabinet!
What is a door Mortice?
A mortice latch is the bolt that holds the door in it’s closed position and is operated by a spindle which passes through the door and is in turn operated by a pair of door knobs or handles.
What is a door Mortiser?
By Walter Westerman. A mortise is a hollow gap made on an object like a door or lock to fit in hardware. When created on a door, it enables the hinge to fit snugly. Moreover, to install the locks, you need to mortise a part of the door frame. At some point, you might need to mortise a door before it can close well.
What is a mortise knob?
A mortise lockset is designed for doors using mortise locks, where a box lock is installed into a deep pocket or ‘mortise’ in the edge of the door. Our crystal knob mortise lock sets are available in a variety of classic designs and include backplate, door knob, box lock and all the hardware you need.
What are the parts of a door hinge?
Most hinges consist of three basic parts: leafs, a knuckle and a pin. Leafs are the rectangular-shaped plates on the sides of a hinge. A knuckle is a cyldrical-shaped tube that’s created when the leafs are joined together. A pin is a solid metal rod that’s inserted through the knuckle to interlock the leafs.
What is trim around doors called?
Casing: Trim used around door and window openings. Exterior casing trims the exterior of windows and doors.
What is the piece at the bottom of a door called?
The piece at the bottom of a door is called a sill. Door sills help prevent air and water from getting in your home. What is a door stile? A door stile is a vertical section on the outside edge of a door panel. They help to frame your door panel.
Do you have to recess a strike plate?
To install a door strike plate, you must first mark the location of the plate on the door jamb. Next, a hole must be drilled in the jamb to accept the door lock bolt. A mortise, or recess, must be made in the door jamb to accept the strike plate. The mortise needs to be as deep as the strike plate is thick.
What is a reinforcer plate?
Reinforcers or door wrap around plates are three-sided metal plates that encase and strengthen the door around the latch, which is a door’s most vulnerable area. … recess into the door edge so the reinforcer fits flush.
What is a door latch guard?
Door latch guards prevent unauthorized access to the latch bolt on a lock set, which helps deter break-ins and avoid repairs. They are commonly used with mortise and cylindrical lock sets and can be installed in both left- and right-facing applications.
What is a door pry shield?
The Pry Shield is 12″ inches long and 1-1/4″ inches wide. Guards your door locks to prevent pry attacks. Mounts on your existing door jamb outside of your door. … Comes with 3, 2-1/2-Inch tamper resistant screws one-way screws.
What is a door bolt?
Definition of door bolt : a sliding bolt for locking a door.
What is a throw bolt?
Resolution: “Bolt Projection” or “Bolt Throw” is a distance from the edge of the door, at the bolt center line, to the farthest point on the bolt in the projected position. Applies to a deadbolt and latchbolt.
What is the gap between door and frame called?
Gap tolerance is another term for the clearances between the door and frame. Interior door dimensions remain the same of 1/8-inch around the sides and top and 1/2-inch to 3/4-inch at the bottom. This terminology is helpful for your project specifics.
What is a door surround?
An ornamental border encircling the sides and top of a door frame.
