If you think of security products like a football team, there’s no question that locks are the all-pro quarterbacks, the main attraction. Nonlocking door hardware, such as levers and hinges, tend to be like linemen and noticed only when they fail.
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Then, there are other products that are like taxi squad players — they don’t even come into play until necessary, but they can save the day. The public might never have even heard of these products or acknowledge their existence, but pros in the industry know them well.
“Probably anybody with a lockshop is going to have some of these in stock,” says Jeff Loss, AHC, CSI, who is the owner and president of D.A. Loss Associates, a manufacturer’s representative.
Locksmith Ledger recently spoke with Loss about three of these ancillary door hardware products — door wraps, latch guards and remodeler plates— and what locksmiths and security pros should know about their use and ordering them.
All are aimed at upgrading a door. Latch guards, or lock guards, are meant to protect locks or strikes on exterior doors from attack, while door wraps, or wrap plates, are aimed at extending the life of a door not quite ready for replacement. Remodeler plates have improved appearance as their primary function in covering up previous installation work when swapping out hardware.
Several manufacturersmake these products, and Loss says any builders hardware distributor and most security wholesalers carry them.
Door Wraps
Locksmith Ledger: When would I want to use a door wrap?
Jeff Loss:Typically, a door wrap is used to mount a new lock, hinge or strike onto a door where the door wrap serves to reinforce a damaged door or provide new hole locations for that lock.
LL: What door types would allow for the use of a door wrap?
Loss:Typically, any flush wood or metal door or any door that has a stile width of 6 inches or more. Door wraps can be 1–6-1/2 inches in width, so the door and existing hardware conditions have to be taken into consideration. You have to see whether the door is worth saving or, if you have a stile-and-rail door, the door wrap that you would use to accommodate whatever lock you wanted to use wouldn’t fit on the door stile any longer. The locksmith has to look at how much room is on that door where the lock is and make sure that whatever door wrap they use will fit on that stile and that something else isn’t in the way. Typically, door wraps are going to go on a flush door — your basic wood or hollow metal door.LL: What different types of door wraps are available?
Loss:There are a number of different types depending on the door dimensions, such as the stile width and thickness; door materials, such as wood or metal; lock type, such as cylindrical or mortise; and the hole spacings for the various lock brands and types.Door wrap models always are being developed to accommodate the various manufacturers’ new push-button and electronic lock offerings. There also are door wraps that accommodate the strike for a pair of doors as well as door wraps for hinges.
LL: Are there special considerations for electronic locks with respect to wraps?
Loss: No. It’s just a different size lock. A standard cylindrical lock will have a 2-1/8-inch hole for the lock and then a couple of holes for the through bolts. When you have a keypad lock or a battery card lock, then the lock is 6 inches high or whatever it is, and more holes are in the door to accommodate the mounting holes or the wires.
LL: When ordering, what do locksmiths have to know about door wraps?
Loss:The four things you must consider:
- Door material
- Door-stile width, thickness, etc.
- Type of lock — the manufacturer and model you want to mount
- Finish
Most door wraps probably are for cylindrical locks. Cylindrical lock through-bolt spacings can be different among manufacturers, but most cylindrical locks will have a 2-1/8-inch hole through the bore in the face of the door. They’re going to have the latchbolt hole. That’s all kind of universal. The above considerations also apply to mortise locks, but in mortise, spacings are different between the cylinder and trim and whether you use a rose behind the lever or a full escutcheon plate. You’re just going to have more mortise lock types of door wraps.
LL: What finishes apply to door wraps?
Loss: Standard finishes include 630 brushed stainless, powder-coat black and dark brown. Other architectural finishes, such as US10, 4 and 3, also are available.
LL: What codes pertain to door wraps?
Loss:There is no fire rating for a door wrap, and there’s no UL listing. The requirements for fire-rated doors can be somewhat of a gray area, so, when in doubt, contact the [Authority Having Jurisdiction]. In my career,however, I’ve never run into a fire-rated door where a door wrap couldn’t be used because of the rating.
Latch Guards
LL: What applications would be best suited for latch guards?Loss: Any out-swinging exterior door that has a mortise or cylindrical lock is a good candidate for a latch guard. It’s a good rule of thumb if you want as a building owner to feel more secure. In the specification work that we do, a latch guard is always part of the hardware package for these types of doors.
LL: What different types of latch guards are available?
Loss: Basic types include models for mortise locks, cylindrical locks, aluminum door locks and doors that have electric strikes. In case of a strike, the guard is designed to mount over the electric strike housing, which can protrude from the face of the door and frame.Latch guards can have through-bolt mounting or welded studs to accept a bolt from the nonsecure side. Both are going to do the job. I think one looks nicer than the other, but it’s just a preference — two different ways of doing things. Some latch guards also can be ordered with a pin on the frame side that goes into a predrilled hole in the frame. The pin helpsto keep the door and frame from being spread apart by a crowbar.
LL: What do locksmiths have to know about latch guards with respect to ordering?
Loss: Four things, again:
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- The lock type
- Electric strike type, if used
- How much room is on the pull side of the door next to the lock rose or escutcheon. The latch guard has to fit next to or sometimes partially around the rose or escutcheon.
- Finish requirement
LL: What about finishes for latch guards?
Loss:Steel, brushed stainless steel, powder-coat brownand brass-plated steel are the options. Most latch guards are steel or stainless steel.
LL: Do any code considerations apply to latch guards?
Loss:Not to my knowledge.
Remodeler Plates
LL: What applications most likely will require a remodeler plate?
Loss:Any door where a new lock type is mounted to an existing door that doesn’t exactly match the lock being replaced. Remodeler plates are particularly popular for doors where keypad or card locks are being retrofitted, because they tend to cause more scarring than other locks. Many remodeled hotel room doors that have new card locks will have custom remodeler plates provided in architectural finishes.
When it comes to home improvement, door knobs may seem like small and insignificant details, but they play a crucial role in both the functionality and aesthetic appeal of your doors. Understanding the different parts of a door knob set is essential for selecting the right hardware for your home, ensuring smooth operation, and enhancing security. In this guide, we'll break down the essential door knob parts, explain their functions, and help you make informed decisions when choosing the perfect door knob for your needs.
Parts of a Door Knob Set
A door knob set is a collection of components that together form a functional and secure door knob. Understanding these parts is crucial whether you're installing a new door knob, replacing an old one, or troubleshooting issues. Here’s a detailed breakdown of the parts of a door knob:
The knob or lever is the most visible and tactile part of the door knob set. It is the part you grasp to turn and open or close the door. Knobs are typically round, offering a classic appearance, while levers provide a more modern look and are often easier to use, particularly for those with physical limitations or for accessible environments. The choice between a knob or lever often comes down to personal preference and the specific needs of the door’s location.
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Rosette or Escutcheon Plate
The rosette, also known as an escutcheon plate, is the decorative plate that surrounds the knob or lever. It covers the hole in the door and hides the internal mechanism, providing a finished look. Rosettes come in various shapes, sizes, and finishes, allowing you to choose a style that complements your door and the overall decor of your home. Whether you prefer a simple, understated design or an ornate, decorative plate, the rosette plays a significant role in the door knob's aesthetic appeal.
A spindle is a square-shaped metal bar that connects the knobs or levers on either side of the door. When you turn the knob or lever, the spindle rotates, engaging the latch mechanism and allowing the door to open or close. The spindle is a critical component of the door knob assembly, as it transfers the rotational motion from the knob to the latch. Without a functional spindle, the door knob would not be able to operate effectively
The latch mechanism is the part of the door knob set that extends into the door jamb to keep the door closed. It is typically spring-loaded, so it retracts when the knob or lever is turned, allowing the door to open. When released, the latch extends back into the strike plate, securing the door in place. The latch mechanism is crucial for the door's security and proper operation, and it comes in various types depending on the level of security required and the door's function
The strike plate is a metal plate attached to the door jamb. It has a hole or recess into which the latch fits when the door is closed. The strike plate reinforces the area around the latch, protecting the door jamb from damage caused by repeated use. It also ensures that the door remains securely closed. Strike plates are available in various designs and finishes to match the other hardware on the door.
The faceplate is a metal plate attached to the edge of the door through which the latch extends. The faceplate helps to reinforce the area around the latch, preventing wear and tear on the door and providing a clean, finished look. Faceplates can be rectangular or rounded, depending on the style of the door knob set, and are available in various finishes to match the rest of the hardware.
The shank is the part of the knob or lever that connects to the spindle. It acts as a bridge between the knob and the door, allowing the turning motion of the knob or lever to be transferred to the spindle and, ultimately, to the latch mechanism. The shank is an essential component for the proper operation of the door knob, as it ensures that the rotational force is effectively transmitted.
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Cylinder (for keyed door knobs)
In door knobs with locks, the cylinder is the part where you insert the key. It engages the locking mechanism inside the door, preventing unauthorized access. The cylinder is a vital security feature, and its quality and design can significantly impact the door knob's effectiveness in protecting your home. There are different types of cylinders, including single and double cylinders, each offering varying levels of security.
The mounting plate is installed on the inside of the door and is used to attach the knob or lever securely to the door. It provides stability and ensures that the knob or lever does not loosen over time. The mounting plate is typically hidden by the rosette or escutcheon plate, contributing to the door knob's clean, finished appearance.
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Keyway (for keyed door knobs)
The keyway is the slot where the key is inserted into the cylinder. The design of the keyway is specific to the lock manufacturer, ensuring that only the correct key can operate the lock. The shape and complexity of the keyway contribute to the security of the door knob, with more intricate designs offering higher levels of security.
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Deadbolt (in some door knob sets)
Some door knob sets, particularly those designed for exterior doors, include a deadbolt in addition to the latch mechanism. The deadbolt provides an extra layer of security by extending a solid metal bolt into the door jamb when locked, making it much more difficult to force the door open. Deadbolts can be operated with a key from the outside and a thumb turn from the inside.
Door Knob Parts Diagram
Visual learners often benefit from diagrams, and understanding door knob parts is no exception. A door knob parts diagram can help you see how all these components fit together, giving you a clear picture of how the door knob operates. In a typical diagram, you would see the placement of the spindle, latch, strike plate, and other components, providing a comprehensive view of the entire assembly.
Choosing the Right Door Knob
Choosing the right door knob involves more than just picking a design that matches your décor. Here are a few factors to consider:
- Functionality: Determine the function of the door knob. Is it for a privacy setting, like a bathroom or bedroom, where a locking mechanism is required? Or is it for a hallway or closet where a simple passage knob will suffice?
- Style: Door knobs come in a variety of styles, from traditional to modern. Choose a style that complements the overall aesthetic of your home.
- Finish: The finish of the door knob can significantly impact the look of your door. Common finishes include polished brass, satin nickel, and oil-rubbed bronze.
- Quality: Investing in a high-quality door knob ensures durability and smooth operation over time. Look for reputable brands that offer solid construction and reliable performance.
- Size and Fit: Ensure that the door knob set you choose fits your door’s thickness and that the backset (the distance from the edge of the door to the center of the knob) is compatible with your door.
Conclusion
Understanding the different parts of a door knob is key to making an informed decision when selecting hardware for your home. Whether you're upgrading your door knobs for aesthetic reasons or replacing worn-out parts, knowing how each component functions will help you choose the best option for your needs. At Park Avenue Locks, we offer a wide selection of door locks and hardware, available in both retail and wholesale, to meet all your door knob needs. Visit our site to explore our collection and find the perfect door knob for your home.
Frequently Asked Questions
What is a door knob spindle?
A door knob spindle is a square metal rod that connects the knobs or levers on either side of the door. When you turn the knob, the spindle rotates, engaging the latch mechanism to open or close the door. It’s a crucial part of the door knob assembly that ensures smooth operation.
What is a baluster vs spindle?
A baluster is a vertical support found in a railing system, often used in staircases or balconies. A spindle, in the context of door knobs, is the metal rod that connects the knobs or levers on either side of the door. While both terms involve support or connection, they refer to different components in different contexts
What is a door knob shank?
The door knob shank is the part of the knob that connects to the spindle. It acts as a bridge between the knob and the door, allowing the turning motion of the knob to be transferred to the latch mechanism, which opens or closes the door. The shank is an essential component for the functionality of the door knob.
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