What kind of lock goes on a bathroom door?

Most bathroom doors use a bathroom lock with a thumb turn and emergency release, allowing privacy from the inside while still providing access in case of emergency. Popular options are mortice bathroom locks, which are fitted inside the door, and magnetic bathroom locks, which offer a silent close. Some bathrooms also use sashlocks, which combine both a latch and a lock in one.

How do you measure a bathroom door lock?

In the UK, the most common bathroom lock sizes are 64mm and 76mm. You would start with the case size which is the distance from the faceplate edge to the back of the lock case. You should also check the backset measurement, which is the distance from the edge of the door to the centre of the keyhole or thumb turn. Measuring correctly is essential for your new lock to fit neatly into your door.

What is a bathroom mortice lock?

A bathroom mortice lock is a type of lock fitted into a pocket or mortice, cut into the edge of the door. Usually it comes with a latch operated by a handle and a bolt thats engaged using a thumb turn on the inside. Mortice locks are one of the most popular choices for bathroom doors in the UK thanks to their neat finish and reliability.

Do bathroom locks need to be fire rated?

If your bathroom door is part of a fire door assembly, then yes you'll need a CE marked and fire rated bathroom lock. For standard non-fire doors, a regular bathroom lock is sufficient. Always check building regulations if you're replacing hardware on a fire-rated door.

Can you put a lock on a bathroom door without drilling?

Yes in some cases, you can fit a surface mounted bathroom lock or a privacy bolt, which attaches directly to the inside surface of the door without needing a mortice. However, these are usually only used temporarily.