As previously mentioned these will usually be fitted with a multi point locking system but the other type of locks are a top and bottom or a central rail key operated lock.
Central rail key operated lock patio door.
This is a rim locking system that bolts the patio door.
This is a multi point locking system that s fitted to the central rail where the doors overlap.
Central rail key operated lock for patio or french doors this is fitted to the central rail on patio doors and gives the doors multi lock points photographs courtesy of ppm locksmiths cardiff and yale.
Open onto garden or into conservatory.
The top or bottom lock will have the most basic level of security of the three.
Sliding patio doors can be vulnerable as they can be lifted off their runners.
This is the most basic patio door lock.
Sliding patio doors may be referred to specifically in a policy as the lock requirements will slightly differ from that of a standard door.
It offers greater security to basic key operated locks.
Patio and french doors.
A key operated multi point locking system this is a rim locking system that bolts the patio door into the frame and offers a much higher level of.
If your french doors are wooden a lock should always be fitted at 90 degrees to the grain of the wood.
It s usually used along with one of the other types of locks.
Central rail key operated lock.
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The central rail key operated locking system is a locking system that s fitted to the central rail where the doors overlap.
Central rail key operated lock.
Key operated multi point locking system.
A central rail key operated lock this is a multi point locking system that is fitted to the central rail that holds the doors.