Deadbolt locks on the doors should have at least a 1 inch throw and mortise locks are typically stronger than typical bored locks.
Locking devices for french doors.
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Exterior french doors are most commonly used to access outdoor living spaces like a sunroom or patio.
It s made to be tamper resistant with a spring load design to avoid thieves easily picking the lock.
It stays in place using three inch screws a drill and a screwdriver.
A more secure sash jammer that locks from the outside will be slightly more expensive.
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Sash jammers are available as locking and non locking versions they can also be fitted to french doors and upvc windows.
This can be accomplished with a three point locking mechanism which allows the top and bottom to be locked simultaneously or with the use of double cylinder vertical deadbolts which will lock the two doors together.
Locking both the top and bottom of the doors will significantly reduce the weak point in the middle.
The strikemaster ii french and double door reinforcement kit will fit most french and double doors.
Because the passive side of the door is seldom used it is secured into the top and bottom of the door frame.
Price of a sash jammer a sash jammer can cost from 10 you will need to fit 2 to a upvc front door.
Exterior patio french doors with bore holes.
It is powder coated white to match most homeowner s trim or can be painted to match any decor.
The defender security door lock is designed to withstand forces up to 800 pounds to help protect your home from burglars.
Most commonly this is done using flush bolts installed in the edge of the passive door see photo.
Also repairs and strengthens already broken doors and frames.
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It does not require additional locking devices.
Three point locking mechanisms are best for french doors.