3 point locking system for french doors

We all want to protect our home and the loved ones within, and unfortunately, most standard locking systems don’t make the cut.

The Trilennium® 3500 Multi-Point Locking System provides you with unmatched security and peace of mind with your double door system. This locking system provides five total locking points including three deadbolts and two additional locking points at the frame header and sill. Designed for active door panels, the multi-point locking system runs the entire length of the door stile delivering maximum strength and security within the Trilennium® Lock Series. Once all Trilennium® bolts are engaged, you have a deadbolt system that cannot be compromised.

The innovative I-Beam technology delivers the patented strength of a solid steel construction in one easy to use, easy to install locking system. It not only increases the strength and precision of the lock but when Trilennium® is installed it actually strengthens the door edge and prevents warping over the life of the panel.

When protecting your home and locking your entryway door, there is no room for error. With the Trilennium® Multi-Point Locking System, strength quality and reliable performance are guaranteed. There is just no comparison.

The most common lock for an exterior entry door is a standard deadbolt, but it’s not the only option. Some vendors we work with also offer doors with multipoint locking systems. 

In this post, we’ll explain what a multipoint lock is and answer frequently asked questions. By the end, you’ll know what a multipoint lock is and have a good idea of whether this locking system is the right choice for your doors. 

What’s a multipoint lock?

Multipoint locking systems provide an added layer of security to your front and back doors. Multipoint locks extend most, if not, the full height of the door and have multiple locking points along the edge of the door.

3 point locking system for french doors

Close-up and side view of the multipoint locking system on a hinged entry door. Credit: confused.com(↗)

The extra locking points strengthen your home’s security by providing a tighter seal along the length of the door, top-to-bottom. This compression also makes the door more weathertight than a standard door, which makes it more energy efficient.

With a standard locking system, your primary lock is in the center, usually a single deadbolt. In that case, the top and bottom of the door don’t have integrated locks which leaves the door more vulnerable to a break-in.

In the video below, you can see an example of a multipoint lock on a Milgard Ultra hinged door. Kyle, our Sales Manager, and product expert, demonstrates how the multipoint lock operates. The multipoint lock on this french door has a deadbolt in the center and a hook near the top and another near the bottom of the door. 

What type of doors have multipoint locks?

  • Entry doors
  • French doors
  • Sliding glass doors

The multipoint lock in the video above was installed on french doors, locking systems for single entry doors operate similarly. Sliding doors, however, operate differently and require a different multipoint lock.

Take a look at Milgard’s multipoint locking system for sliding patio doors in the video below. You’ll see how Milgard has designed a multipoint locking system that provides up to five locking points.

Can you install multipoint locks on any doors?

Multipoint locks can be installed on hinged doors and sliding doors but they require different systems. Whether or not you can install the multipoint lock after fabrication will depend on the door manufacturer. 

Ask your contractor what doors are available with factory-installed multipoint locks. Factory-installations will reduce the work and should protect the warranty on your door as modifications tend to void them.

Where to buy doors with multipoint locks?

Contact a local window and door supplier; their experts should be able to suggest a product that meets your needs.

Andersen, Milgard, and ProVia all offer doors with multipoint locking systems.

You can explore door options by clicking the links below.

Andersen Doors
Milgard Doors
ProVia Doors

You can also visit big box stores like Lowe’s or Home Depot – they have a wide range of products in their showrooms.

Are multipoint locks more expensive than traditional locks?

Yes, multipoint locks are more expensive than deadbolt applications; they provide added security and keep large doors from warping, for some homeowners these benefits are worth the additional expense. 

Do many of our customers choose multipoint locks?

“As an option, not usually. They are standard on Milgard and Andersen hinged doors and are required on ProVia 8’ tall fiberglass doors (not required on 8’ steel doors). Our customers either buy them because they come standard or because they are required to.”
- Kyle Strouse, Brennan Enterprises

The comfort of knowing your home is secure is priceless, that’s why we invest in security systems and cameras↗. While not everyone chooses multipoint locking systems, they’re certainly worth the consideration.

North Texas Homeowners: Interested in doors with multipoint locks for your home? Get a free quote when you schedule an in-home consultation with a member of our team. Give us a call at 817-860-9767 or submit this form to have one of our representatives reach out to you.

What is a three point locking system for French doors?

Whereas in single-point locking, the door on a cabinet locks only at the point where the key is turned, halfway up the edge of the door, three-point locking enables the top and bottom of the door to be simultaneously secured.

What kind of lock can you put on French doors?

A single cylinder mechanical deadbolt will do, but some homeowners prefer to install a double cylinder deadbolt for even more security with glass doors. As smart homes become more popular, homeowners are also turning to smart locks on French doors. Beneath your preferred deadbolt, you may choose a keyed knob or lever.