TriLatch Gate Latch: How to Adjust and Troubleshoot

If your TriLatch has stopped catching every time the gate swings shut, the latch itself is usually fine. Gates move over time — poles settle, brackets shift, hinges loosen — and the latch is simply the first place you notice it. In most cases this is an adjustment rather than a replacement part.

Work through the checks below in order. They run from the most common cause to the least.

Know which TriLatch you have

There are two versions of the TriLatch and they are not identical, so it is worth a quick look before you start. Check the striker body on the gate:

• SL-50-TRI-90 (introduced 2023/2024) — the striker body has an alignment marker on it.
• SL-50-TRI-90L (older style) — no alignment marker.

If your fence went in during 2023/24 or earlier, there is a good chance you have the 90L. The two versions also take different keys, so the same check tells you which one to order if you ever need a spare.

How the TriLatch is meant to operate

Opening it takes two actions at once: press the red release button and lift the knob at the same time. That combination is deliberate. It is what helps make the latch difficult for a small child to work while staying easy for an adult.

On closing, rare-earth magnets pull the gate the last of the way in and seat the latch. So if the gate is swinging shut but not latching, those magnets are not getting close enough to do their job — which points straight back to alignment.

Check the gate before you touch the latch

A latch that will not catch is often reporting a problem somewhere else on the fence. Run through these first:

• Fence sections are still connected to one another
• Fence poles are fully seated in their deck sleeves
• Wall attachments are secure
• Termination points are secure
• Both gate trusses are seated in the deck
• The fence is attached to the gate truss
• The rectangular bracket is square and tight
• The gate hinges are still holding tension

It is common for one of these to be the real cause. Reseating a pole or tightening a bracket often brings the latch back into line without adjusting the latch at all.

Adjusting the latch

The TriLatch adjusts both vertically and horizontally, and on the newer 90 latch the alignment marker on the striker body is your reference point. The video below walks through the adjustment on an All-Safe gate.

One thing to watch for: on some installations a molding screw sits where the striker body needs to go. Our full gate adjustment guide covers that, along with every other adjustment point on the gate.

Common problems and where to look

The gate closes but the latch does not catch. The striker and latch are out of line vertically or horizontally, or the gate is not swinging fully closed. Run the gate checks above, then bring the striker back into line with the latch.

It catches sometimes, but not always. Something is moving — a pole lifting slightly, a bracket working loose, or seasonal movement in the deck. Reseat the poles and retighten the bracket rather than adjusting the latch to compensate for it.

The gate stops short of closing. Look at hinge tension first, then check that nothing is catching along the swing path.

It will not release when you press and lift. The latch may simply be locked. Confirm it is unlocked, then try again.

Still not latching?

If you have been through all of this and it still will not catch, use the chat button on this page to send us a message, or call the office at 800-786-8110. It helps if you can tell us which version of the latch you have and what the gate is doing when it fails to latch.