There are two sizes of mortice locks: 21/2 and 3. If you are installing a mortice lock to a door with a narrow frame, or any door for that matter, it’s very important to know what size lock you need. The size of the mortice lock refers to how far the keyhole will be from the edge of the door.
How do I know which Mortice lock I need?
If the lock is still in the door it is possible to measure from the front plate of the lock to the centre of the keyhole. If the measurement is 45mm, you need a 64mm (2.5″) mortice lock. If the measurement is 57mm, you need a 76mm (3″) mortice lock.
Are all 3 lever locks the same size?
There are many different case depths but the most common sizes are 64mm and 76mm. This is the metric equivalent to 2.5″ and 3″ lock cases from back in the imperial days.
What are the common sizes for a rebated Mortice lock?
Rebate kits come in three standard sizes, 13mm, 19mm and 25mm, with the most common being 13mm, this measurement is determined by the overlap between the two doors.
How do I know what size my door lock is?
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.
What is a 5 point Mortice lock?
Five lever mortice deadlock
The five lever mortice deadlock is a type of door lock commonly fitted to wooden doors.It works by inserting and turning the key to move the five levers into the correct position, allowing the bolt to be locked or unlocked.
What is backset size on a mortice lock?
Almost ALL domestic mortice locks and tubular latches are supplied with either a 44mm or 57mm backset length. These equate to case sizes of 2.1/2″ or 3″ in imperial measurements. Commercial (DIN) lockcases are 60mm backset.
What is the difference between 3 lever and 5 Lever Mortice locks?
What is the difference between a 3 lever and 5 lever lock? The difference between a 3 lever lock and a 5 lever lock is that a 3 lever lock is less secure because it has fewer levers which increases the risk of key duplication. Also, a 3 lever lock will NOT be BS3621 approved due to the poor security of the lock.
Is a Yale lock a mortice lock?
The Yale range of mortice locks that meet all applications and security needs. A mortice lock is set inside the door itself to ensure a flush finish rather than being surface mounted.The most secure 5 lever mortice lock is one which is Kitemarked to British Standard BS 3621.
What is rebated door?
A rebated door pair is where you have two single doors that have had the lip removed from the edges of the door. So where you’d normally see a gap between a pair of doors, removing the lip allows these doors to interlock instead.Rebated doors are usually thicker than standard doors, which makes them better insulators.
What is a rebate kit?
A Rebate Kit is an ironmongery accessory that is used to allow a lock or latch mechanism to be fitted correctly on a pair of double opening rebated doors.When used externally, it also ensures that the doors are fully sealed for much better protection against the weather, wind, and water penetration.
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 is a bathroom Mortice lock?
They are generally used for the bathroom but can be used on any internal door to stop entrance.
What is a mortise deadlock?
Mortice deadlocks are the simplest. They only have a keyhole and a locking bolt that goes back and forth. A mortice sashlock, on the other hand, features a handle-operated latch mechanism. This means you can open and close the door without having to use the key, but can still lock the door when you leave the building.
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.
How do I know if my door lock conforms to BS3621?
One way to check your front or back door locks are conforming to BS3621 is to look for the British Standard Kitemark (BSI) on the faceplate of the lock. The faceplate of the lock is viewable when you open the door; you should also see the specific standard number e.g. BS3621 stamped on the plate.
How do I measure my backset?
Backset: A backset is the distance from the center of the cross bore, to the edge of the door. To determine the correct backset measurement for your door, you need to measure the distance from the edge of the door to the center of your cross bore.
What is the difference between a rim cylinder and a mortise cylinder?
The main difference between the two cylinders is the tailpieces and how they fit into the lock. Mortise cylinders have a threaded exterior and a cam. And rim cylinders have bolts and a stem that projects out into the door.This knowledge will benefit you when you are looking to service or replace your locks.
What is the diameter of a mortise cylinder?
29.37 mm
Mortise Cylinder Features
Body: Brass, 1-5/32″ (29.37 mm) diameter.
Are lock cylinders standard size?
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Single or half Euro Cylinder locks typically range from 40mm to 50mm, whilst Euro Cylinders range from 60mm up to 120mm as standard, equal lengths from the central cam. For example, an 80mm length standard Euro Profile Cylinder lock will measure 40mm either side of the operating cam.
Are mortise locks more secure?
Mortise locks are one of the most secure forms of residential hardware available today. What makes mortise locks so much more secure than their cylinder counterparts? A pocket cut into the short edge of the door, allows a longer and thicker mortise box to slide into the door itself, providing superior protection.
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