How to Fit a Pocket Door: The Ultimate Space-Saving Solution

Pocket doors are a smart way to save space, but the first time I fitted one, it definitely wasn’t the straightforward job I expected. I was retrofitting it into an existing wall and only discovered halfway through that there were electrical cables running exactly where the pocket needed to go. Add to that a section of flooring that had to be lifted and replaced to get the frame sitting right, and what should have been a tidy weekend job quickly turned into a much bigger project. It worked out in the end, but it taught me exactly where pocket doors shine and where they can cause headaches.

That said, pocket doors are still an excellent solution for tight spaces where a traditional swinging door just isn’t practical. In the right situation, they’re well within reach of a competent DIYer. With basic tools, careful planning, and the right system, installing a pocket door can be very achievable, especially when you’re building a new partition wall from scratch.

I’ve since fitted pocket doors in en-suites, pantries, and utility rooms where every millimetre counts, and when they’re planned in from the start, the process is far smoother than retrofitting into an existing wall. That’s exactly what this guide focuses on. Installing a pocket door during a renovation or as part of a new internal stud wall is often easier than it looks.

Fitting a pocket door into an existing wall is a different story. Hidden plumbing, electrical wiring, and structural elements can turn a simple idea into a complex job, or even make it unworkable. I’ll cover that scenario in a separate guide so you know what to look out for before opening up a wall.

The good news is that modern pocket door systems and framing kits have made the process far more straightforward than it used to be. In simple terms, the job involves building your stud wall around the pocket door frame, fixing it securely in place, and finishing it off with plasterboard and trim.

In this article, I’ll walk you through the step by step process of fitting a pocket door, from planning and preparation through to the finishing touches, so you can decide whether it’s the right solution for your space and your skill level.

To help demonstrate the process, I’ve created a number of diagrams which give a good visual representation of the job I completed.

Planning Your Pocket Door Installation (New Partition Wall Only)

After fitting a few pocket doors, I’ve learned that the planning stage is where most of the success or frustration is decided. When you’re working with a new partition wall, you’ve got the advantage of starting with a blank slate, which makes things far simpler than trying to work around existing walls and surprises hidden inside them.

Choose the Right Location

The first thing I always do is decide exactly where the pocket door will sit. Remember, the door has to slide fully into the wall, so you need uninterrupted wall space beside the opening. As a rule, that space needs to be at least the same width as the door itself. If you cut corners here, you’ll feel it later when the door won’t fully open or close properly.

Select a Suitable Pocket Door Kit

Pocket door kits come in standard sizes to suit common door widths, and most are designed to work with 125mm stud walls or deeper. I’ve learned the hard way to double check the manufacturer’s specifications before buying. Make sure the kit suits both the door you plan to use and the wall you’re building. Some systems include a complete metal frame, while others expect you to build part of the timber framing yourself, so it’s worth knowing exactly what you’re getting before you start.

Design the Stud Wall to Suit

Because the door slides into a hollow cavity, the stud wall has to be designed around it rather than treated like a normal wall. That means making sure the wall is thick enough to house both the doorway and the pocket, usually 95mm or more. It also needs to be a non load bearing wall, as pocket doors should never be installed in structural walls. Just as importantly, the pocket area must be kept completely clear. No insulation, no electrical cables, and no plumbing. I’ve seen how quickly things get complicated when that rule is ignored.

Plan Ahead for Finishes and Fixtures

Finally, I always think about how the wall will look once everything is finished. Decide whether the door will sit flush or use architrave, and plan ahead for things like light switches or power sockets so they don’t end up where the pocket needs to be. Most pocket door kits include a jamb kit to neatly finish the opening, but it’s still worth visualising the final result before you start building.

Framing the Stud Wall and Fitting the Pocket Door (~120mm Thick Wall)

When building a new partition wall to house a pocket door, precision is key—especially when you’re working to a specific wall thickness. In this case, your total wall thickness will be approximately 120mm, made up of:

• 89mm timber studs
• 2 x 12.5mm plasterboard (one layer per side)
• Approx. 3mm skim plaster each side

This is a standard thickness for many pocket door kits, but always double-check the kit’s specifications before you begin.

Step-by-Step Pocket Door Framing and Installation

1. Mark Out the Wall Position

Start by marking the exact position of your new wall on the floor, ceiling, and adjacent walls. Use a spirit level or laser level to ensure everything is square and plumb.

2. Cut and Fix the Floor and Ceiling Plates

• Cut two lengths of 89mm x 38mm timber (CLS is commonly used).
• Fix one to the floor and one directly above it on the ceiling to form your base and head plates.
• Use a suitable fixing method depending on your floor/ceiling type (screws and plugs for masonry, wood screws for timber joists).

3. Plan for the Pocket Door Opening

• Your pocket door kit will specify the rough opening size, which is usually twice the door width plus an allowance for the frame and clearances. For example, a 762mm (2’6”) door often needs an opening of around 1560mm–1600mm wide.
• Mark this out carefully on your floor and head plates.
• Don’t forget to allow for header height, which includes the door height, any track system, and the floor finish. Pocket door kits will specify this in the instruction manual.

4. Frame the Pocket Area

• Pocket door kits often come with a metal cavity frame that replaces traditional studs in the pocket area.
• Ensure no electrical cables, pipes, or insulation run through the pocket area.
• Secure the pocket frame to the floor and head plates.
• On either side of the pocket, fix vertical studs to frame the door opening.
• Fix a solid timber header across the top of the opening (above the track) if not already provided with the kit. This can be doubled up for added strength.

5. Frame the Rest of the Wall

• Space your studs at 400mm or 600mm centres (depending on plasterboard size and your preference).
• Continue the frame beyond the pocket section as you would with a standard stud wall.
• Add noggins (horizontal bracing) where needed, especially if you’ll be fixing anything like switches or sockets outside the pocket zone.

6. Construct the Pocket Door Track and Frame

• Most pocket door frames are delivered flat-packed. It’s now time to build the frame following the manufacturer’s instructions.
• In our example, the door frame measures 1494x2115mm (WxH)
• Check it is level and fully supported.

7. Install the Pocket Frame in the Wall

• Slide the frame into the opening between the studs, aligning it with the finished floor level and door opening width.
• Fix the pocket frame securely to the floor, head plate, and any surrounding studs using the screws or brackets supplied.
• Make sure everything is level and plumb. A twisted or out-of-square frame will cause your door to bind or not close properly.

8. Fix Plasterboard Over the Pocket

• Fit 12.5mm square edge plasterboard on each side of the wall to cover the framework of the pocket hole door and stud-work framing.
• When fixing plasterboard over the pocket section, use short screws that won’t penetrate into the door cavity—many kits have pre-marked fixing rails.
• Avoid screwing into the sliding track or any part of the door mechanism.

9. Plaster the Wall

• Once boarded, apply joint tape and plaster skim as you would with any stud wall.
• I tend to leave this part to someone with more experience for a tidier job.

Fitting the Pocket Door

Once the wall is plastered and dry, it’s time for the satisfying part, hanging the door.

1. Prepare the Door

• Trim the door to height if necessary (check your kit’s maximum thickness and weight limits).
• Fit any required door hardware now, such as rollers, top hangers and door furniture.

2. Hang the Door on the Track

• Most pocket door kits use a clip-on or hook-on roller system.
• Slide the door into the cavity and attach it to the rollers inside the track.
• Check that it glides smoothly and adjust the height and position using the adjustment bolts if necessary.

3. Fit Door Jambs

• Install the floor guide (usually provided with the kit) at the bottom of the door opening. This keeps the door stable and stops it swinging.
• Fit soft-close mechanisms or door stops if included.

4. Install Architrave and Finishing Trims

• Once the door is fitted and working smoothly, you can add architrave or finishing trims around the opening.
• Be careful not to fix anything that restricts the door’s movement or access to the track (some systems have removable covers for future maintenance).

And that pretty much concludes the installation of these amazing pocket door systems. Hopefully, I’ve provided you with sufficient information to tackle this job yourself.

Tools You’ll Need

To complete this project smoothly, make sure you have the following tools on hand:

• Tape measure – for accurate framing and door sizing
• Pencil & straight edge – for marking cut lines and wall layout
• Spirit level / laser level – essential for keeping everything square and plumb
• Drill/driver – for securing studs, frame, and track
• Screwdriver set – for fitting hardware and making fine adjustments
• Handsaw or circular saw – to cut timber studs and plates
• Plasterboard saw – for trimming boards around the pocket frame
• Utility knife – for scoring plasterboard and trimming
• Plastering tools – including jointing knife, hawk, trowel, and sanding block
• Stud finder (optional) – useful for avoiding services when locating wall positions
• Wood chisel and hammer – for notching or tweaking tight fits if needed
• Step ladder – for ceiling plate and track installation
• Personal protective equipment (PPE) – gloves, goggles, and dust mask

Check your pocket door kit, too. Some include special brackets, fixings, or tools.

Conclusion

Once everything is planned properly, fitting a pocket door into a new partition wall really isn’t as daunting as it might first seem. I’ve always found it to be one of those jobs that’s surprisingly satisfying, especially when you see how much space it frees up once the door slides smoothly into the wall. Take your time, measure carefully, and pay attention to the details, and you’ll be rewarded with a clean, professional result.

I’ve installed plenty of sliding doors over the years, but pocket doors are still my favourite. When they’re done right, they blend seamlessly into a space and solve problems that a standard hinged door never could.

If you’re thinking about fitting a pocket door into an existing wall, that’s a more involved job with a few extra pitfalls to watch out for. I’ll be covering that retrofit scenario in a separate article, so keep an eye out for that if it’s something you’re considering.

Good luck with your build, and enjoy the extra space and flexibility your new pocket door brings.