What’s the difference between a single lock and a triple lock?

September 20th, 2019

When selecting your security screen door hardware, it’s important to know what the difference is between a single lock and triple lock and what impact each has on a security door.

• A single lock is has one locking point at the centre of one side of the door.
• A triple lock has three locking points connected to an internal rod, one at the top, one in the middle, and one at the bottom. All three locking points are engaged when the key is turned.

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Which lock should I use on my security door?

It is important to note that a single lock does not meet Australian Standard AS 5039-2008: Security Screen Doors and Security Window Grilles and using a single lock will turn any security door into a barrier door, otherwise known as a safety door. Therefore, to maintain the integrity of your security screen door, it is essential to use a triple lock.

Triple locks are significantly more secure as opposed to a single lock for the simple reason that it locks at three points on the door jamb and can’t be levered at the top or bottom.

All three locking points are activated by either turning the snib, or by using a key. By turning the key you are able to deadlock the door. We explain the safest way to lock your security screen door in our blog Door Lock Safety Tips. 

CommandeX’s range of Security Screen Doors are custom made and fitted to any door style and size. With the option of two security screen door systems, you can be confident in finding a security screen door to suit your home, security needs and budget. Click here to view our range of patented security screen doors.