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Gumax® sliding door lock

Easily lock your glass sliding doors

The Gumax® sliding door lock protects your veranda and belongings against unwanted opening. Thanks to its integrated design, the lock is barely noticeable and your glass sliding doors retain their sleek appearance. The lock has been tested against drilling and cylinder extraction, allowing you to secure your veranda with confidence.

Gumax® sliding door lock with a keyed cylinder, fitted in the lower cassette of a glass sliding door

The benefits of a lock

Comparison between the Gumax® sliding door lock and other locks
FeatureGumax® sliding door lockOther suppliers
Door followers included Yes, via the set with door followers No
Tested Yes, in accordance with EN 1303:2015 against drill and cylinder extraction Often not specified 
Integrated design Yes, recessed into the cassette of the glass sliding doors No, usually surface-mounted
Choice of different cylinder sets Yes No
Number of keys 5 Usually 2

How does the lock work?

With the supplied door followers, all glass panels are linked together. When you slide one panel, the other panels automatically move along with it. Separate door followers can easily be ordered individually.

When the glass sliding doors are fully closed, this connection allows you to lock the entire sliding door system with a single lock.

As standard, one sliding door system can be operated from the outside using a key. The remaining sliding door systems can easily be secured from the inside with the sliding lock.

Lock multiple sliding door systems with one key

One sliding door system comes with a keyed lock as standard, allowing you to open and close it from the outside. Secure the remaining sliding door systems from the inside with the supplied sliding lock.

Would you like to lock more than one sliding door system from the outside? Order a cylinder set. All cylinders within a set operate with the same key.

The keys supplied with the cylinders cannot be duplicated by third parties. The manufacturer does not supply replacement or duplicate keys either. We therefore recommend storing the keys in a safe place.

  • 2 sliding door systems: set of 2 cylinders
  • 3 sliding door systems: set of 3 cylinders
  • 4 sliding door systems: set of 4 cylinders
Sliding lock on the inside of a glass sliding door, with the rail system and a door follower on the post

Calculate your price

Choose your product, your veranda type and the side(s) you want to fit with a lock. The number of sliding door systems you want to lock from the outside with a key determines how many cylinders you need. 

  1. Step 1 of 4 · Product
  2. Step 2 of 4 · Your veranda
  3. Step 3 of 4 · Walls
  4. Step 4 of 4 · Calculation

Step 1: choose the product

Would you like a lock with or without door followers?

Choose a product

Good to know

Does one wall already have door followers, and would you like to lock all the walls? Contact our customer service team for a suitable combination.

Install the glass sliding door lock in three steps

Replace the cassettes

Replace the cassette of the first and last sliding panel with the supplied lock cassettes.

Install the door followers

Install the door followers on the glass sliding panels, matching your rail system.

Check operation

Check that all panels move together and that the lock closes properly.

That is all it takes to easily install a lock on your glass sliding doors.

Installation manual

All steps with illustrations

Experience the lock in person

See the lock in one of the following showrooms:

Eindhoven NL

UddelNL

VenloNL

LeicesterUK

CrailsheimDE

HeidelbergDE

IngolstadtDE

Frequently asked questions


Easily lock your glass sliding doors