Frequent question: Are door locks standard size?

How do I know what size door lock I need?

Measure from the outside edge of the door (including furniture) to the centre of your door. This is dimension A and is called the External Size to Centre. Next, measure from the inside edge of your door (including furniture) to the centre of your door to find dimension B, the Internal Size to Centre.

Are all door locks same size?

Whilst not all locks follow the same template, nine times out of ten, other measurements can be correctly assumed based on the case depth. There are many different case depths but the most common sizes are 64mm and 76mm.

Are door knobs all standard size?

To have the door function properly, you will have to make sure that the door knob you buy is the correct size for your door. The standard size for a door knob diameter is either 2 3/8 inches or 2 3/4 inches and these knobs will usually fit doors that are anywhere between 1 3/8 inches to 1 3/4 inches thick.

What are the 7 types of locks?

The Many Different Types of Locks

  • Padlocks. One of the most common lock types around, padlocks are also among the most recognizable locks on the planet. …
  • Deadbolts. …
  • Knob Locks. …
  • Lever Handle Locks. …
  • Cam Locks. …
  • Rim/Mortise Locks. …
  • Euro Profile Cylinders. …
  • Wall Mounted Locks.
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Are front door handles standard size?

The most common are 2 3/8 inches and 2 3/4 inches, but some hardware can fit multiple backsets. Make sure the hardware you select fits your door. For more help, see Determine the Backset of Your Door. Notice the latch or bolt configuration.

Are there different size deadbolt locks?

Yes. Most deadbolts will fit in the same hole configuration for a standard doorknob. There are some oddball sizes that won’t, but the standard doorknob and standard deadbolt fit in the same holes. You will have to modify the door strike plate and hole behind to fit the bolt.