Wardrobe Upgrade Suitable for IKEA Pax: Pull-Out Clothes Rails & New Dampers

A wardrobe upgrade involves retrofitting functional furniture fittings such as telescopic runners, clothes rails, and soft-close hinges, which are installed into existing carcase drill holes using the standardised System 32.

Modular wardrobe systems, such as the well-known IKEA Pax, are based on standardised construction. The carcase usually consists of melamine-coated chipboard and features continuous rows of holes on the interior sides. This line drilling has a hole spacing of exactly 32 mm and a hole diameter of 5 mm. Known in the furniture industry as System 32, this principle allows DIYers and installers to retrofit wardrobes with professional fittings without needing to drill new holes.

A targeted upgrade optimises storage space, improves ergonomics, and extends the service life of furniture doors with modern damping technology. In this guide, you will learn which technical components are available, how to determine the correct dimensions, and what to look out for during installation.

Types of Fittings for a Wardrobe Upgrade

The interior fittings of a wardrobe define its usability. While standard setups often only offer basic shelves and rigid rails, functionality can be significantly increased with moving components.

Pull-Out Clothes Rails

In wardrobes with a shallow carcase depth of, for example, 35 cm, garments do not hang side by side, but one behind the other. This is where a pull-out clothes rail is used. It is mounted underneath a shelf and allows the entire row of clothes to be pulled forwards out of the wardrobe.

Technically, these extensions are usually based on a ball bearing runner. Small steel balls run within a steel guide profile, preventing tilting and ensuring a high load capacity. A pull-out clothes rail is available in various lengths, typically in the range of 250 mm - 500 mm, matching the respective wardrobe depth.

For deep wardrobes (from 58 cm), the classic clothes rail running transversely from side panel to side panel is used instead. It is fixed in wardrobe rail end sockets, which in turn are inserted or screwed into the 5 mm drill holes of the side panels.

Hinges and Damping Systems

The doors of large wardrobes are heavy. If they slam unchecked against the carcase, noise is created and the chipboard material is subjected to long-term stress. Upgrading to concealed cup hinges / wardrobe hinges with soft close solves this problem.

A concealed cup hinge is the standard furniture hinge. It consists of a hinge arm and a round cup that is recessed into a drilled hole in the door. The standard diameter for this cup hole is 35 mm. On hinges with integrated damping, a small hydraulic cylinder sits inside the hinge arm. This cushions the closing movement over the final centimetres and pulls the door shut gently and silently.

Alternatively, existing hinges without their own damping can be upgraded with separate door dampers. These small cylinders are either clipped onto the existing hinge (if compatible) or screwed into the carcase side as an independent component. In addition, simple buffers & dampers made of silicone, stuck onto the door edge, prevent direct wood-on-wood contact.

Drawer Runners

Many DIYers integrate additional internal drawers into their wardrobe. The quality of the drawer depends primarily on the runner used. Here, a strict distinction must be made between extension types: a full extension runner pulls 100% out of the carcase, allowing unrestricted access to the rearmost area of the drawer. A partial extension runner stops at around 75% of the travel distance.

For wardrobes, drawer runners with soft close are recommended. The damping (soft-close) brakes the drawer as it closes.

Important: soft-close must not be confused with push-to-open (tip-on). These are opposing mechanisms. Soft-close pulls the drawer shut with damping (requiring a handle to open). Push-to-open pops the drawer open when the front is pressed (handleless fronts), but must be engaged manually with a light push when closing.

Selection Criteria: How to Find the Right Fittings

Before installing wardrobe accessories, the technical parameters of the wardrobe must be accurately determined. A wardrobe carcase with system hole patterns functions like a technical modular kit where individual parts must be aligned down to the millimetre.

Carcase Depth and Runner Length

The clear internal depth (dimension from the back panel to the front edge) determines the maximum length for runners. If the wardrobe has an internal depth of 330 mm, the guide rail of a pull-out clothes rail may be a maximum of 300 mm long so that the door still closes flush.

Hinge Cranking and Door Overlay

When replacing hinges, you must choose the correct overlay type. This is the most common mistake in furniture upgrades.

• Full overlay: The door sits completely in front of the carcase side. From the front, the side panel of the wardrobe is not visible. This is standard for most freestanding wardrobes.
• Half overlay (twin / dual): Two doors share a central carcase partition. The door covers only half of the edge.
• Inset: The door sits flush inside the carcase sides. From the front, the edges of the side panels are visible.

Opening Angle

Standard concealed hinges have an opening angle of 110°. For wardrobes with internal drawers, hinges with 155° or 165° (wide-angle hinges) are often necessary. These swing the door completely clear of the internal carcase width so that the drawer does not rub against the inside of the door when pulled out.

Load Capacity

For drawer runners and clothes rails, load capacity must be observed. Heavy winter coats create significant leverage on a front-facing pull-out rail. Look for steel runners secured with Euro screws (for 5 mm holes) rather than short wood screws to prevent tearing out of the chipboard.

Application Areas and Space Planning

The interior layout depends on usage. A 2-person wardrobe requires strict separation and often duplicate sets of clothes rails.

Top Boxes and Flaps

Some wardrobe combinations utilise room height right up to the ceiling using top extension cupboards. These upper compartments are often fitted with flaps rather than standard hinged doors. For these, flap stays or gas struts are required.

A gas strut assists in opening the flap upwards and holds it open. The force of these struts is measured in Newtons (N). The selection typically ranges from 50 N to 150 N. The required force is calculated from the weight of the flap (including handle) and the flap height. For large, heavy flaps made of MDF, a gas strut for heavy flaps is used. Here, too: a gas strut for holding open is technically completely different from a furniture damper (soft-close) for braking doors.

Lighting

A practical upgrade is integrating furniture LED accessories. Aluminium profiles for LED strips can be mounted directly underneath shelves or behind the clothes rail. In wardrobes with a back panel, cables can often be routed invisibly in the small gap between the back panel and the wall.

Installation and Technical Guide: Step-by-Step

Installing furniture fittings yourself requires precision. As most wardrobes are pre-drilled, the work is largely limited to exact positioning and screwing.

Tools Required

• Cordless drill/driver or manual screwdriver
• Bits: PZ (Pozidriv) size 2 for Euro screws, TX (Torx) for modern wood screws. Never use a PH (Phillips) bit for PZ screws, as this will damage the screw head.
• Tape measure or folding rule
• Spirit level (for uneven floors)
• Bradawl (if new pilot holes need marking)

Installing a Pull-Out Clothes Rail

1. Positioning: Determine the height. Hang the longest garment on a hanger and measure the required clearance below.
2. Prepare the shelf: Remove the shelf from the wardrobe. Place it upside down on a flat work surface.
3. Align the rail: Centre the guide rail of the pull-out fitting on the underside of the shelf. Ensure that the front stop sits flush with the front edge of the shelf.
4. Fastening: Fix the rail with short wood screws (e.g. 3.5 x 15 mm). Ensure that the screws are not longer than the thickness of the shelf material (usually 16 mm or 18 mm).
5. Insertion: Place the shelf back onto the shelf supports inside the wardrobe.

Replacing Hinges (Soft-Close Upgrade)

1. Removal: Detach the door from the carcase. With modern clip-on hinges, simply press the release button at the rear end of the hinge arm.
2. Remove old hinges: Undo the screws on the hinge cup in the door. Remove the old hinge.
3. Insert new concealed hinges: Press the 35 mm cup of the new soft-close hinge into the drilled recess. Ensure that the hinge is set at exactly 90 degrees to the door edge.
4. Check the mounting plate: The plate on the carcase side must match the new hinge. It is often advisable to replace it at the same time. It is fixed with Euro screws into the 5 mm holes of the System 32 row.
5. Hanging and adjustment: Clip the door back into place. Use the adjustment screws on the hinge arm for 3D alignment:

• Depth adjustment: Adjusts the gap between the door and the carcase.
• Height adjustment: Adjusted via the cruciform mounting plate.
• Side adjustment: Aligns the door parallel to the outer edges and adjusts the reveal between two doors.

Frequently Asked Questions (FAQ)

What does System 32 mean for wardrobes? System 32 is an international standard in furniture manufacturing. It refers to rows of holes in the side panels of furniture where the centre-to-centre hole spacing is exactly 32 mm. The hole diameter is 5 mm. This standard allows shelves, hinges, and runners to be installed flexibly across different manufacturers.

Can I retrofit soft-close on any wardrobe? Yes, in most cases. You have two options: either replace the complete hinges with models featuring integrated damping, or fit separate clip-on dampers or screw-in dampers. The requirement for replacing hinges is a standardised cup diameter of 35 mm (rarely 26 mm on very small furniture).

How do I calculate the force for a gas strut? The force in Newtons (N) depends on the weight of the door/flap and its height. A rough rule of thumb is: flap weight in kg × 10 = required force in N. For a flap weighing 3 kg, you need a strut with at least 30 N. However, for wide flaps, it is recommended to fit two struts (left and right) to prevent warping of the wood. In this case, split the required force (e.g. 2x 50 N).

Why are my drawers not closing properly despite soft-close? If a drawer with full extension and damping fails to close, it is often due to an installation error. The runner tracks on the left and right must be mounted exactly parallel and at the exact same height. A deviation of just 1.5 mm can prevent the soft-close mechanism trigger from engaging correctly with the spring. Overloading the drawer beyond its specified load capacity (e.g. 30 kg) will also impair operation.

What is the difference between roller runners and ball bearing runners? A roller runner consists of epoxy-coated sheet steel and plastic wheels. It is affordable and easy to fit, but usually only available as a partial extension and has a lower load capacity. A ball bearing runner uses small steel balls within a telescopic profile. It operates more smoothly, carries more weight, allows 100% full extension, and is frequently used for high-grade internal drawers and pull-out clothes rails.

Which screws do I need for furniture fittings? For fixing into the pre-drilled 5 mm carcase holes, use Euro screws (specialist screws with a blunt tip and deep thread). For fixing onto flat wooden surfaces (e.g. under a shelf), use wood screws or chipboard screws with a diameter of 3.5 mm or 4 mm. Ensure you use the correct drive type (PZ or TX).

How do I clean and maintain telescopic runners? Ball bearing runners are lubricated at the factory with specialist grease. They should never be cleaned with aggressive degreasers or water, as they may rust or seize. Dust and fluff in the wardrobe can accumulate in the tracks. If necessary, vacuum the runners dry or wipe them with a dry cloth.

Related Categories & Guides for Your Furniture Project

To complete your wardrobe project successfully, you will find all the matching hardware components for self-assembly in our shop. Explore further accessories for furniture building. If you are looking to upgrade other areas alongside your wardrobe, we offer specific fittings ranging from heavy-duty drawer runners for the workshop to specialist solutions for humid rooms.