Slam-to-Lock vs Lift-to-Lock Mortise

Understand the exact locking action required so your door locks every time

Original HubSpot URL: https://learn.simpled.uk/slam-to-lock-vs-lift-to-lock-mortise

Slam-to-lock and lift-to-lock mortises both work with Simpled Slim model handles. The difference is how you lock the door.

Each mortise type requires a specific action. The differences and correct usage are explained clearly below.

The Two Locking Types (Simple Explanation)

  1. Slam-to-Lock Mortise

What you do:

Close the door

That’s it — the door locks automatically

What happens:

The latch engages as soon as the door shuts

No handle movement is required

Think of it like:

A hotel door that locks the moment it closes

  1. Lift-to-Lock Mortise

What you do:

  1. Close the door

  2. Lift the handle up

  3. (Optional) Lock fully using key/app if needed

What happens:

  • Lifting the handle engages the locking mechanism

  • If you do NOT lift the handle, the door may not fully lock

Think of it like:
A door that needs an extra step to secure properly.

How to Tell Which Mortise You Have

Test 1: Close the door

  • If it locks immediately → Slam-to-lock

  • If it does NOT lock or engage the full mechanism → continue

Test 2: Lift the handle

  • If lifting the handle locks the door → Lift-to-lock

  • If nothing happens → check installation or contact support

When to Use Each Type

Slam-to-Lock is best for:

  • Convenience

  • High-traffic doors

  • Situations where automatic locking is required

Lift-to-Lock is best for:

  • Added security

  • Doors where controlled locking is preferred

  • Preventing accidental lockouts

Quick Summary

  • Slam-to-lock = Close door → locked

  • Lift-to-lock = Close door → lift handle → locked

If your door is not locking,try lifting the handle first.

Still Not Working?

If you have followed the correct method and the door still does not lock:

  • Check that the door is fully aligned and closed

  • Confirm the lock is installed correctly

  • Contact support with photos or a short video for faster help

This small difference in operation is one of the most common causes of confusion—but once you know which type you have, the lock will work reliably every time.