However a deadbolt that locks both doors together and single sided deadbolts in the top and bottom of both doors are a good combination for securing both doors.
Single handle french door security lock.
The divide between the pair is a weakness that can be exploited by a potential burglar.
The burglarybuster lock 1 is the solution for all opening outwards french doors including single handled french doors and the burglarybuster lock 3 works on all opening inwards french doors.
Out of all the locking options to secure a french door a single sided deadbolt is the best option.
Security lock door brace security barricade house double safety security protection for blemished door standard doors french doors and barricade all your doors dark bronze.
The defender security painted brass jimmy resistant single cylinder the defender security painted brass jimmy resistant single cylinder entry door deadlock is designed to lock the door to the jamb to prevent a forced entry.
Patlock is an excellent example of home security innovation.
Designed to secure your french doors patlock is simple to fit secure and meets the security standards needed to be a member of the official police crime prevention initiative secured by design.
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Though french doors can be single the majority of french doors are installed in pairs.
When you install them make sure that the cut out on each lock face the doors because it allows to to push then handles in further around the lever barrel push the button on both door locks at the same time and pull apart and the doors are unlocked.
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It consists of a 5 pin tumbler cylinder and includes a tamper proof shutter guard.
To use just slip one half of the lock over your interior door handle lever and the other lock over the other handle lever and push towards each other until it locks.