Hidden Ensuite Doors: How to Plan a Concealed Ensuite Door

An ensuite door is one of the best places for a concealed door. From the bedroom, the door can disappear into the wall, painted or papered to match, so the room feels calm and uncluttered rather than lined with architraves. Behind it, the ensuite works exactly as it should.

But an ensuite has demands that a hallway cupboard doesn’t: privacy, steam, ventilation and, often, tiles on one face. This guide explains how to plan a hidden ensuite door that looks seamless and works well every day.

Why a hidden door suits an ensuite

A concealed door has no architrave and no visible frame. The aluminium or timber frame is set into the wall and plastered in, and the hinges are hidden inside the door edge. Once it’s decorated, you see a crisp shadow line rather than a doorway.

That’s ideal for a bedroom, where an ensuite door often sits right next to the bed or a wardrobe wall. A hidden door:

• keeps the bedroom looking like a bedroom, not a corridor of doors
• lets you carry paint, wallpaper or panelling across the wall
• avoids an architrave clashing with fitted wardrobes or a headboard wall

If you’re new to these doors, our guide to hidden door ideas shows the main styles, and jib doors explained covers the terms.

Decide which way the door opens

This is the most important decision, because it controls which side looks flush.

Most concealed hinged doors are flush on one side only: the side the door opens away from, often called the push side. On the other side, you’ll see the frame edges and the door sits slightly recessed.

For an ensuite, that gives you two choices:

• Opens into the ensuite (push from the bedroom). The bedroom face is flush, which is usually the side you want to hide. But the door swings into the ensuite, so you need enough clear space inside for the door to open past the basin, WC or shower.
• Opens into the bedroom (pull from the bedroom). The ensuite face is flush, and the bedroom face shows the frame. This frees up space inside a small ensuite, but the door swings into the bedroom and the hidden effect is weaker from that side.

Most people want the bedroom side flush, so check the ensuite layout early. If the room is too tight for an inward-opening door, a pocket door may suit better. Our guide to pocket doors for bathrooms explains that option, and pocket door vs concealed door compares the two.

Some door sets give you flexibility here. Our Concealed Omega Primed Door Set can be installed left or right, push or pull. With our Bespoke Concealed Door Set, you select left or right and push or pull when you order.

Choose a privacy lock that keeps the look

An ensuite needs a lock you can secure from inside and open from outside in an emergency. The good news is you don’t need a bulky lever and rose that spoils the flush face.

Magnetic latches are the usual partner for concealed doors, and many ranges include bathroom versions. Our concealed magnetic euro latch from AGB comes in versions including a thumb turn (6mm spindle) and a touch version. AGB also offers its Touch magnetic catch with a bathroom lock option, for a push-to-open door that can still be locked.

The Bespoke Concealed Door Set includes a magnetic lock as standard, with a WC lock and a set of handles among the options you can add.

A few tips:

• Check that the thumb turn, emergency release and latch all suit the same spindle size.
• Think about guests. A completely handleless push-to-open door can be confusing for anyone who doesn’t know it’s there.
• Pushing a painted door in the same place will mark it over time, so use a tough, washable paint.

Our concealed door handles guide explains the options in more detail.

Don’t forget ventilation: undercuts and extract fans

Concealed doors look best with tight, even gaps. But an ensuite door still needs to let air move.

In England, Approved Document F (ventilation) says internal doors should allow air to flow through the home by providing a free area equivalent to a 10mm undercut in a 760mm wide door. It says doors should be undercut to 10mm above the floor finish if the floor finish is fitted, or 20mm above the floor surface if it isn’t.

The same guidance sets a minimum intermittent extract rate of 15 litres per second for a bathroom. An ensuite with a shower needs proper extract ventilation, not just a door gap, and the undercut helps replacement air reach the room when the fan runs.

So, when you order a concealed ensuite door:

• Tell your supplier about the ventilation requirement. The Bespoke Concealed Door Set lists a ventilation undercut and ventilation sleeves among its options.
• Plan the finished floor level. The undercut is measured from the finished floor, so know your floor build-up before ordering. Our guide on how to measure for a concealed door explains how.
• Check with your builder or building control body if you’re unsure what’s needed for your project. Wales has its own version of Approved Document F, and Scotland and Northern Ireland have separate rules.

Moisture, paint and tiles

Let the plaster dry first

A concealed frame is plastered in, so there’s always a wet trade nearby. Fit and paint the door only once the plaster has dried out fully. Door makers warn that moisture from drying plaster can affect timber doors.

Paint for a bathroom

The bedroom face can be painted in the same colour and sheen as the bedroom walls. The ensuite face sees steam every day, so use a paint suitable for bathrooms on that side, following the door and paint manufacturers’ guidance. Our guide on how to paint a concealed door covers preparation, priming and matching the wall.

Tiles on the ensuite side

If the ensuite wall is tiled, the tiles add thickness to that face. Tell your supplier the full finished wall thickness, including tiles and adhesive, so the frame suits the wall.

Tiling or cladding the door leaf itself is a different matter. Anything you fix to the leaf adds weight, and concealed hinges have load limits. Check with the hinge and door makers before adding anything heavy. Our concealed door hinges guide explains load ratings.

Sound between bedroom and ensuite

Nobody wants to hear the extractor fan or a late-night shower from bed. A concealed door’s slim gaps, plus the ventilation undercut, mean it won’t be completely soundproof, but you can help:

• Choose a solid-core leaf. The Bespoke Concealed Door Set uses a 56mm thick solid-core primed door slab.
• Ask about seals where they don’t conflict with the hinges or the ventilation requirement.
• Insulate the stud wall around the ensuite with acoustic insulation while the wall is open.

Is an ensuite door a fire door?

In a typical house, an ensuite door off a bedroom isn’t usually a fire door. But fire door rules depend on the layout, for example in loft conversions and homes with floors more than 4.5m above ground. Always check with your building control body. Our guide to FD30 door requirements explains where fire doors are commonly needed, and FD30 concealed doors covers fire-rated flush doors.

Hidden ensuite door checklist

• Decide which face must be flush, and check the ensuite has room for the door to swing
• Choose a privacy lock that suits the latch and handle style
• Allow for the ventilation undercut and confirm the finished floor level
• Give your supplier the full finished wall thickness, including tiles
• Keep added weight on the leaf within the hinge limits
• Plan the paint finish for each face

Frequently asked questions

Can you have a hidden door to an ensuite?

Yes. A concealed or flush to wall door works well for an ensuite. You’ll need a privacy lock, a ventilation undercut and a plan for which side is flush.

Which way should a hidden ensuite door open?

If you want the bedroom side flush, the door usually opens into the ensuite. Check the ensuite has enough clear space for the door to swing. If it doesn’t, consider a pocket door.

Can a concealed door have a bathroom lock?

Yes. Many magnetic latch ranges for concealed doors include bathroom versions with a thumb turn inside and an emergency release outside.

Does a concealed ensuite door need an undercut?

In England, Approved Document F says internal doors should provide a free area equivalent to a 10mm undercut in a 760mm wide door, so plan for this when you order.

Can I tile over a hidden ensuite door?

Be careful. Tiles add a lot of weight and concealed hinges have load limits. Check with the door and hinge makers before fixing anything heavy to the leaf.

Plan your hidden ensuite door

A well-planned hidden ensuite door gives you a calm bedroom and a practical ensuite. Get the opening direction, lock, undercut and wall thickness agreed before the frame goes in, and the rest is decorating.

Browse our concealed doors and concealed door hinges, latches and handles, or ask about a door made to fit your opening through our made-to-measure service. If you’d like help, contact our team.