How do I know what size lock cylinder I have?

Author: Ellen Gaylord  |  Last update: Wednesday, August 30, 2023

To measure your euro cylinder lock you simply need to measure from the centre screw hole to the outside edges. This will give you two sizes which makes up the size of your door lock. The two sizes should equal the overall length of the cylinder. An example would be a 40/40 would be 80mm in total length.

What is the standard lock cylinder size?

Different types of cylinder locks come in different sizes, in increments of 5mm. The size you need depends on the thickness of your door, with the most common Euro cylinder size being between 60mm and 120mm for full Euro cylinder locks.

Are all lock cylinders compatible?

However, not all the cylinders can be fitted on all the locks. The locks to be applied often have cylinders different from those to be inserted and in this latter case the cylinder must have an outer profile which is compatible with the housing present on the lock.

What size cylinder lock for a 44mm door?

For example: If you have a door that is 44mm thick and your handle back plate is 10mm deep, the total length needed is 64mm (44+10+10mm). In this situation you would then normally use a 70mm cylinder which would allow for a small protrusion of the cylinder of 3mm on either side of the door.

Are all 3 lever locks the same size?

3 lever locks are generally available in two standard case depth sizes: 2.5 inches (64mm) and 3 inches (76mm).

How to measure a Euro cylinder

Are door lock cylinders interchangeable?

In simple terms, a door cylinder is that part of the lock which accommodates the key. Most door cylinders are interchangeable. That just means you can usually swap them without having to actually alter the door lock. It's the part of a door that can mean the difference between a break-in or not.

What is the most common lock cylinder?

The euro cylinder lock is one of the most commonly used lock profiles by locksmiths and architectural ironmongers since it is so easy to install, modify with additional security measures, or replace; it is seen in both domestic and commercial properties, offering protection and security for a variety of premises and ...

Can you just replace the lock cylinder?

In order to change your lock, you can replace your entire lock, or you can replace just the cylinder. Again, you can take just the cylinder to a locksmith to be rekeyed, also.

Can you replace a lock cylinder without a key?

Use pliers or a screwdriver to remove the ignition cylinder once it is loose. It is important to note that removing the ignition cylinder without a key can be a difficult and time-consuming process, and should only be attempted by experienced professionals or those with advanced mechanical skills.

How are cylinders measured?

If the cylinder is disassembled, measure either the inside diameter of the cylinder tubing or the actual piston diameter. If the cylinder is still assembled or installed, the bore diameter can be measured by using the outside diameter of the cylinder and subtracting the thickness of both tubing walls.

What is the difference between a lock cylinder and a lock barrel?

Cylinder – A complete assembled barrel and shell, including pins (tumblers), springs, etc. Cylinders come in various shapes and sizes, predominately round or oval. Barrel – The part of the lock that is turned by the key. The broach or keyway is cut into the barrel to hold the key in position.

What does the number on lock cylinder mean?

The number stamped into the face of the lock (by the keyhole) does not necessarily indicate the lock type, but normally indicates information on the key that will work that lock - however we can supply some precut keys for certain lock codes, or manufacturers.

What size is a deadbolt cylinder?

The Deadbolt Lock (Cylinder, Round Cylinder) has a diameter of 2.48” (63 mm), front depth of . 53” (13.5 mm), and latch depth of 1.18” (30 mm). The Deadbolt Lock (Cylinder, Round Cylinder) is a common door lock consisting of a cylindrical profile and housing a standard round cylinder.

How much does it cost to replace a door lock cylinder?

The average cost for a Door Lock Cylinder Replacement is between $218 and $234.

Why are double cylinder locks illegal?

In the U.S., there is no single comprehensive law against dual-cylinder deadbolts. Individual cities and states have local property and fire codes that may prohibit the use of dual-cylinder deadbolts. The code may prohibit the use of dual-cylinder deadbolts in some buildings and allow them in others.

Are cylinder locks easy to pick?

Since the pins are hidden inside the lock, it's fairly difficult for most people to move the plug without the correct key. But, with a lot of practice, it is possible to solve the puzzle by other means. In the next section, we'll see how a locksmith goes about picking this sort of lock.

What are the lock cylinder formats?

The list of options is a long one: mortise, rim, key in knob, key in lever, deadbolt, and profile. But don't let this throw you – it's pretty easy to distinguish each of the types of cylinders.

Are cylinder locks easy to break?

The most common door lock is the euro cylinder. Unfortunately, it has never been easier to break into a property with a standard euro cylinder lock. By simply purchasing basic hand tools from any DIY store a euro lock cylinder can be snapped in just 5-10 seconds.

What is the difference between a 1 cylinder and 2 cylinder lock?

Single and double cylinder locks are typically used for different situations: Double-cylinder locks operate with a key on both sides of the deadbolt. Single-cylinder locks can be locked from the inside by a thumb turn.

Are Schlage and Kwikset cylinders interchangeable?

You can change about 90% of the Schalge lock cylinders from Schlage to Kwikset, and about 10% of the Kwikset lock cylinders are able to be changed at all.

Do cylinder locks have master keys?

As a solution to this, it is possible to construct cylinder locks so that multiple locks can be operated by a single key commonly known as a “Master Key”. It's further possible to have multiple locking cylinder groups and multiple master keys all part of a suite of locking cylinders – we call this a Master Key System.

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