What Are the Different Types of Door Locks?

  • Knob Locks. Knob locks are the most common type of door lock available and the chief security method for most doors. …
  • Cam Locks. Cam locks consist of a fastener with an attached arm, or cam, that rotates to lock. …
  • Deadbolt Locks. …
  • Padlocks. …
  • Mortise Locks. …
  • Keypad Locks. …
  • Smart Locks.

How do I know what lock fits my door?

Choose the Right Lock to Fit Your Door

  1. Backset: The distance between the edge of the door and the center of the lock hole. Usually, the backset measures 2 3/8-inches or 2 3/4-inches.
  2. Cross (or edge) bore: The small hole along the edge of the door frame, usually measuring about 1-inch in diameter.





How do I know what type of lock I have?

How to Identify Key Lock Types

  1. Observe how the lock is fitted. …
  2. Look at the end of the lock bolt. …
  3. Observe how the lock is fitted to the door. …
  4. Observe whether the lock is installed on the surface and latches into a raised fitting mounted to one side of the frame. …
  5. Look at the shape of the lock.


What type of lock is used for a front door?

Deadbolt locks are by far the most popular exterior door lock and they are the most often used locks on exterior doors to residential properties. They are so popular that commercial property owners also use them to ensure security for their businesses or buildings.

Are door locks universal?





Door levers are left-handed, right-handed or universal. To determine what you need, look at the door from outside the house or room. If the hinges are on the left, look for a left-handed or universal lever. If the hinges are on the right, you need a right-handed or universal model.

Are all door locks the same size?

In the United States, there are two common backsets for residential door locks: 2 3/8 inches and 2 3/4 inches. Pack your locks with a 2-3/8-inch or 2-3/4-inch latch, depending on which backset you specify. Dummy sets have no latch and are surface-mounted so you can install a dummy set wherever you choose on the door.

What does 2 lever lock mean?

A 2 lever lock offers key differs between 18 and 20. This means that lock manufacturers make 20 different keys before they can start the process to duplicate the same 20 keys.

What type of lock is on a uPVC door?

What type of lock is on a uPVC Door? You will usually find a multipoint lock with a Euro cylinder on most uPVC doors. Euro Cylinder locks are prone to lock snapping though, please read our guide here on lock snapping.

What kind of door lock is most secure?



Deadbolt door locks

Deadbolt door locks are the most secure type of key lock and are usually used on a home’s exterior door. Available in single- and double-cylinder styles, deadbolts are rated according to their strength from Grade 1 to Grade 3. A Grade 1 is the highest grade and provides the most security.

What is a 3 lever lock?

3 Lever Locks



The three-lever sash lock is designed for internal doors in domestic properties. These locks are best suited for doors needing to be locked for privacy purposes, but where high security is not required – it has fewer levers and therefore key duplication is much easier.

What is mortise lock set?



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. Mortise lock sets are available in a variety of classic designs and include backplate, door knob, box lock and all the hardware you need.

Are all doorknobs universal?

Door knobs are not universal, but there aren’t exponentially increasing options for what you need. You need to consider three things: the backset, the hole diameter (called a cross-bore) where the doorknob goes, and whether it’s for interior or exterior use.

How do I know what size door knob to buy?

Measure the bore hole.



You’ll need to know the bore hole’s diameter to get the right sized knob. Measure across the circular hole at its widest point, i.e. start at the bottom of the hole and pull the tape until you hit the top of the hole. There’s your diameter.

How do I buy a new door knob?

The main measurements you should determine are:

  1. Backset — The distance from the edge of the door to the center of the knob. …
  2. Cross Bore — The hold along the edge of the door frame. …
  3. Door Thickness — This usually ranges from 1 ¼ inches to 3”, with exterior doors frequently being thicker than interior ones.



Do doorknobs have to match bathroom fixtures?

Bathroom faucets do not need to match light fixtures and doorknobs. In fact, by mixing finishes on your bathroom faucets, fixtures and doorknobs, the decor will be intriguing and layered instead of monotonous. However, take care that the finishes compliment each other. Aim for a cohesive style.

Do new door knobs come with keys?

Other Types of Door Knobs



Handlesets: Door handlesets come with a handle and key lock to install on the exterior of a door. They also come with a lever or door knob for the other side of the door and a deadbolt.

Is it easy to change door knobs?

Replacing a doorknob is an easy do-it-yourself project.

How many keys do door locks come with?



Deadbolt lock sets usually come with two keys when you purchase them. Some deadbolts do not include keys because of the manufacturer or lock type. To unlock deadbolt locks, you will need to use a knob or a key.

How do you put a lock on a door?


Quote from Youtube video: So the first thing we're gonna do to install our new deadbolt is insert the latch through the side of the door has the plate connected. And insert the screws with a Phillips screwdriver.

How much does it cost to put a lock on door?

Buying basic locks and installing them yourself runs around $15-$50 per lock, or $60-$200 for four locks on a typical home, depending on the quality and style of the locks. Except to pay at the higher end of the scale if you have all the locks keyed to operate with one key, instead of a separate key for each lock.

How much does door lock cost?

You’ll pay from $40 to $300 to buy a new door lock, depending on design, materials, and whether it’s a simple key-in-knob lock or a high-end lock-and-handle combo with smart technology features. Professional locksmith installation can add another $80 to $200, depending on the complexity of the lock.