How Do I Fit Sliding Wardrobe Doors?

The Process in Brief

To fit sliding wardrobe doors you level and fix the bottom track, fix the top track directly above it, hang the rear door first and then the front door, then adjust the rollers until each door runs true and closes flush. Everything depends on the first ten minutes: if the tracks are not level and precisely parallel, no amount of adjustment afterwards will make the doors run properly.

Most systems come with the tracks cut to length or ready to cut, and the whole job takes two to three hours for a standard opening. You will need a helper for lifting the doors, since panels with mirrors are heavy and awkward to hold at an angle.

What You Will Need

A tape measure, a long spirit level, a drill driver, a hacksaw for trimming aluminium track, wall plugs and screws suited to your wall type, a pencil, and packing shims. A stud detector is useful for timber framed walls and essential in a loft conversion.

Check the contents of the kit against the parts list before starting. A missing anti jump block or roller bracket is far easier to resolve before the doors are in position than after.

Step One: Check the Opening

Measure the width of the opening at floor level, at the middle and at the top. Measure the height on the left, in the centre and on the right. Note the smallest height, because that is the figure the doors must clear.

Check the floor with a spirit level across the full width. Floors in older UK homes often fall by five to ten millimetres, and that fall must be corrected with shims under the bottom track rather than absorbed by the doors. Check the walls for plumb too, since an out of plumb side wall shows up as a tapering gap along the closed door edge.

Step Two: Fit the Bottom Track

Set the bottom track back from the front edge of the opening by the distance stated in your instructions, usually so the front door face aligns with the carcase or the wall reveal. Mark a line, then dry lay the track and check it with the level along its whole length.

Pack under the low points with shims until the track reads level, then fix it down. On timber floors screw directly. On concrete, drill and plug. On a finished floor you want to protect, some systems allow the bottom track to be bonded with adhesive instead, though a screwed track is more stable in the long term.

Step Three: Fit the Top Track

The top track must sit exactly above the bottom track. Use a long level held vertically at both ends of the run, or drop a plumb line from the ceiling to the bottom track and mark. Transfer the position with a chalk line if the opening is wide.

Fix into joists, a timber batten or plugged plasterboard fixings rated for the weight. If the ceiling is uneven, fix a timber batten first, scribed to the ceiling and level on its lower face, then attach the track to that. This is the standard approach and it is far quicker than trying to shim a track at height.

Step Four: Hang the Doors

Always hang the rear door first. Tilt the top of the door into the rear channel of the top track, then swing the base in and lower the rollers onto the rear channel of the bottom track. Repeat with the front door in the front channels.

Fit the anti jump blocks or top guides once both doors are in. These stop a door lifting out of the track if it is pushed hard, which matters in family bedrooms. Then close each door in turn and look at the gap between the door edge and the side wall.

Step Five: Adjust the Rollers

Every roller has an adjustment screw, usually reached from the side or the bottom edge of the door. Turning it raises or lowers that corner. Adjust one corner at a time and recheck the vertical gap after each change.

Aim for an even three millimetre gap at the closing edge, a door that sits parallel to the side wall, and a run that requires only light pressure. If a door drifts open on its own, the bottom track is not level. If a door binds halfway, the top track is not parallel to the bottom track. These two symptoms diagnose almost every problem.

Common Mistakes to Avoid

Fixing the top track by measuring down from the ceiling rather than plumbing up from the bottom track is the most frequent error, because ceilings slope. Cutting the doors is another: sliding doors are not trimmable in most systems, so the opening must be adapted to the doors, not the reverse.

Also allow for the depth the doors take up. A sliding front sits in front of the carcase and consumes around ten centimetres of internal depth across the two channels, so plan interiors accordingly. If your opening is not standard, choosing a ready made unit from our sliding wardrobes UK sale range avoids track fitting altogether.

When a Ready Made Unit Makes More Sense

Fitting doors into an alcove suits rooms with a genuine recess and sound walls. Where the wall is uneven, the ceiling slopes or you may move within a few years, a freestanding unit is the more sensible choice, and it comes with the interior already engineered. Our wider modern wardrobes UK selection covers both hinged and sliding fronts in matching finishes.

Whichever route you take, plan the rest of the room around the door line so nothing obstructs the run. A low chest or a pair of bedside cabinets UK sale can sit close to a sliding front without ever blocking it, which is the practical advantage of the system. You can see how those pieces sit together across the collections at Furniture in Fashion.

Fitting Into an Alcove Versus a Wall Run

An alcove gives you two side walls to work against, which makes alignment simpler because the tracks can be cut to the exact opening. The trade off is that both walls must be reasonably plumb, since any lean shows as a tapering gap when a door closes against it.

A wall run without side walls needs end panels. Fix a vertical panel at each end of the run, plumb and square, and treat those panels as if they were walls. This is the standard approach for a bedroom where the wardrobe occupies part of one wall rather than a full recess, and it gives you control over the gap that an out of plumb wall would otherwise dictate.

Planning the Interior Behind the Doors

Sliding doors always cover part of the opening, so at any moment you can reach roughly half the interior. Plan the layout with that in mind. Put daily clothes in the sections you open most often and seasonal items in the section behind the overlap, which is marginally less convenient to reach.

Keep drawers away from the very edge of the opening where the closed door sits, because a drawer front there cannot be pulled without sliding the door first. Rails, shelves and baskets all work happily behind a sliding front, but anything that pulls forward needs clear space in front of it.

Maintenance After Fitting

Vacuum the bottom channel every few weeks. Grit is the main enemy of a sliding system, and it wears rollers far faster than normal use. A quick pass with a brush attachment takes seconds and keeps the run smooth for years.

Recheck the roller adjustment after the first few months. Timber floors settle, new plaster dries and both can shift alignment slightly. A quarter turn on one roller is usually all that is needed. If a door starts to feel heavy rather than rough, check that the anti jump blocks have not worked loose and dropped onto the running surface.

Frequently Asked Questions

Do sliding wardrobe doors need a bottom track?

Most systems do, since the bottom track carries the weight and keeps the doors aligned. Top hung systems exist and leave a clear floor, but they need a much stronger ceiling fixing.

How much space do sliding doors take up inside?

Expect to lose around ten centimetres of internal depth to the two channels. Allow for this when planning rails and shelves so hangers still sit square to the doors.

Can I fit sliding doors to an uneven floor?

Yes, by packing shims under the bottom track until it reads level. Never rely on roller adjustment alone to correct a sloping floor, as the doors will drift.

Why does my sliding door keep coming off the track?

Usually because the anti jump blocks or top guides are missing or set too low. Refit them so they engage the door without touching the running surface.

Can sliding wardrobe doors be trimmed to fit?

In most systems no, because the panel sits inside a frame that carries the rollers. Adjust the opening with infill panels instead of cutting the door.