A pocket door is brilliant for saving space, but without any damping it can be a little unruly. Push it too hard and it bangs into the jamb when it closes, or disappears too far into the wall when it opens. A soft close mechanism fixes that by catching the door in the last part of its travel and easing it gently into place.

This guide explains how soft close pocket doors work, the difference between single and two-way systems, why door weight matters so much, and what to check before you buy a kit or add a closer to an existing door.

What is a soft close pocket door?

A soft close pocket door is a sliding pocket door fitted with a damper, usually hidden inside the overhead track. As the door approaches the end of its travel, a bracket on the door (often called an activator or trigger) engages the damper. The damper then slows the door and draws it smoothly to a stop, rather than letting it hit the frame.

Because the whole mechanism sits in the track above the door, you can’t see it once the door is installed. The door looks exactly the same as any other pocket door. It just behaves better.

How a soft close mechanism works

Most pocket door soft closers use the same basic principle:

The damper unit sits in the track. It’s attached to, or travels with, one of the runners that carry the door.
An activator is fixed in a set position. As the door slides, the damper meets the activator at a point you choose during installation.
A spring and damper take over. The spring pulls the door the last few centimetres, while the damper controls the speed so it doesn’t snap shut.

Some closers work only in the closing direction. Others work in both directions, so the door is also eased to a stop when it’s slid back into the pocket. Manufacturers usually describe these as bi-directional or two-way closers.

Single soft close vs bi-directional soft close

A single soft close mechanism stops the door slamming into the jamb when you close it. That’s the direction where a bang is most noticeable, so it’s the most common upgrade.

A bi-directional closer also controls the opening stroke. That helps stop the door being pushed too far into the pocket, where the handle edge could end up out of reach. Eclisse, for example, describes its BIAS DS accessory as braking the door in both the opening and closing phases, with the same level of braking in each direction.

Soft close vs anti-slam

These terms are sometimes used interchangeably, but they aren’t always the same thing. Eclisse explains that a standard soft close brings the door to a gentle close when you slide it normally, but the door can still be slammed into the post if enough force is used. Its anti-slam version is designed to control the door even when it’s pushed hard.

If you have children, or the door is in a busy area such as a kitchen or hallway, it’s worth asking whether a closer is designed to cope with a forceful push as well as a normal one.

Door weight: the most important spec

Every soft close mechanism has a working weight range, and it matters more than almost anything else. If the door is too light, the damper may resist it so strongly that the door doesn’t close properly. If it’s too heavy, the closer may slow it down but not bring it fully home.

Here are some real examples to show how much the limits vary:

Our pocket soft close kit is supplied with a light closer for doors up to 30kg and a heavy closer for doors from 30kg to 45kg. Doors must be heavier than 25kg, and above that weight range the mechanism will slow the door but may not fully close it. It’s compatible only with Rocket Door Frame pockets.
Our soft close for doors up to 100kg also needs a door heavier than 25kg.
Eclisse states that its BIAS DS bi-directional closer gives its soft close effect on doors up to 70kg, with the anti-slam function effective up to 100kg.

So before you choose a closer, find out what your door actually weighs. The door manufacturer will usually publish it. A hollow-core door and a solid-core or fire door of the same size can weigh very different amounts.

Buying a kit with soft close included

The simplest route is to choose a pocket door kit that comes with soft close as standard, so the frame, track and damper are designed to work together.

Our pocket door kit with soft close is a good example. It’s supplied with a soft close for doors up to 40kg, takes doors up to 914 x 2032mm and 25 to 45mm thick, and an additional soft close for heavier doors up to 100kg is available separately. It’s well suited to en-suites, closets and room dividers.

If you need a particular stud size or finished wall thickness, have a look at the full range of pocket door kits. Our pocket door wall thickness guide explains how to match the frame to your wall.

Adding soft close to an existing pocket door

Many pocket doors can be upgraded with a soft closer after installation, but it depends on the system.

Check compatibility first. Soft closers are usually designed for one manufacturer’s track. A closer made for one brand of frame is unlikely to fit another. The Rocket Door Frame soft close we sell, for instance, is only compatible with Rocket pockets.
Expect to remove the track. Retrofit instructions, such as those Eclisse publishes for its closers, typically involve taking the track out of the pocket, removing the existing door stops, fitting the damper to a runner and positioning the activation brackets.
Think about access. On most modern kits the track can be removed through the opening without opening up the wall. On older or unbranded systems that isn’t always the case, so check before you buy.

If you’re unsure which frame you have, look for a brand name on the track or runners, or get in touch with a photo and we’ll help you identify it.

Double pocket doors

On a double pocket door, where two leaves meet in the middle, each leaf needs its own soft closer. Both Eclisse and our own product listings note that two closers are needed for double doors. Factor that into the budget from the start.

Soft close on fire-rated pocket doors

FD30 pocket door kits are tested as complete assemblies, so any accessory added to them has to be covered by the kit’s fire test evidence. Our pocket soft close listing states that the 30 to 45kg closer is FD30 compatible for use with Rocket FD30 kits. Never add a third-party closer to a fire-rated pocket door unless the kit manufacturer confirms it’s allowed. Our guide to FD30 pocket doors covers the wider rules.

Setting up and adjusting a soft closer

A few practical tips once the closer is in:

Get the activator position right. Most systems give a formula or measurement for where the bracket should sit. If it’s in the wrong place, the door may stop short or bounce.
Hang and level the door first. A door that isn’t level, or that rubs on the floor guide, will fight the damper.
Clean the track. Building dust and debris in the track are a common cause of poor sliding. Clean it before you finish and after any decorating.
Test with a normal push and a firm push. The door should close fully and quietly in both cases, within the closer’s design limits.

Frequently asked questions

Can I add soft close to any pocket door?

Not always. Soft closers are usually made for a specific manufacturer’s track, so check that the closer is compatible with your frame before you buy. Many branded systems can be upgraded after installation.

Why won’t my soft close pocket door close fully?

The most common reasons are a door that’s outside the closer’s weight range, an activator in the wrong position, or debris in the track. Check the door weight against the closer’s specification first.

Do double pocket doors need two soft closers?

Yes. Each leaf needs its own closer, so a double pocket door needs two.

Is soft close the same as anti-slam?

Not always. A basic soft close eases the door shut in normal use, while an anti-slam version is designed to control the door even when it’s pushed hard. Check the manufacturer’s description.

Can I use soft close on an FD30 pocket door?

Only if the fire-rated kit’s manufacturer confirms that closer is covered by the kit’s test evidence. Don’t modify a fire-rated pocket door with unapproved parts.

Find the right soft close pocket door kit

Start with the right frame and the right closer for your door’s weight and you’ll have a pocket door that glides shut quietly for years. Browse our pocket door kits and our pocket door handles, locks and soft close accessories, or contact us and we’ll help you match a soft close to your door.