Wardrobe Rails Suitable for IKEA Pax

A wardrobe rail is suitable for the IKEA Pax system when its length corresponds exactly to the internal clear width of the cabinet carcass and the brackets fit into the existing 32 mm System hole spacing.

When planning or repairing a wardrobe system, fitters and DIY enthusiasts often face the task of replacing defective components or adapting interior fittings to meet new requirements. If you are configuring a wardrobe for 2 people, for instance, the factory standard fittings are often insufficient. Third-party fittings offer a functional alternative to IKEA, provided the technical specifications match precisely. In this technical guide, we examine the dimensional requirements, compatibility criteria, and installation steps for wardrobe rails and pull-out systems.

Technical Requirements: Dimensional Specifications for Compatibility

The carcass of a piece of furniture acts like a precise coordinate system into which every fitting must integrate seamlessly. In order to select fittings suitable for IKEA Pax, understanding the carcass construction is essential. The cabinets are based on System 32, which is firmly established in the furniture industry. This means that the drilled holes in the side panels have a vertical centre-to-centre distance of exactly 32 mm. The diameter of these holes is generally 5 mm.

Calculating the Clear Internal Width

Wardrobe rails are installed between the two side panels. The external dimensions of the wardrobe are irrelevant for the rail length; the decisive factor is the clear internal width. The side panels of standard carcasses are made from 18 mm thick chipboard. This results in the following fixed internal dimensions for common carcass widths:

• Carcass width 500 mm: internal width = 464 mm
• Carcass width 750 mm: internal width = 714 mm
• Carcass width 1000 mm: internal width = 964 mm

A wardrobe rail intended to serve as a replacement for IKEA Pax must either be prefabricated to these exact lengths (minus the material thickness of the brackets) or made from cut-to-size tubing.

Carcass Depth as a Limiting Factor

Alongside width, the depth of the cabinet dictates the type of hanging solution. The system is typically offered in two depths: 580 mm and 350 mm (external dimensions). With a depth of 580 mm, the rail is fitted traditionally across from side panel to side panel. A standard clothes hanger measures approximately 450 mm in width and therefore has sufficient clearance without colliding with the back panel or closed door.

With the shallower carcass depth of 350 mm, this transverse installation is physically impossible. In this scenario, pull-out wardrobe rails (front pull-outs) fitted beneath a shelf must be used. Often, this shallow depth is chosen in confined spaces, such as when room in the bedroom is needed for a sideboard for TV or a lowboard for TV and sufficient walkway clearance must be maintained.

Suitable Wardrobe Rails and Bracket Systems

Depending on the requirements, different technical solutions compatible with IKEA carcass systems can be used.

The Classic Oval Tube

The standard solution for deep wardrobes is the oval tube. Due to its oval geometry, the metal profile offers significantly higher flexural rigidity than a traditional round tube of the same diameter. This is particularly relevant for the 1000 mm carcass width to prevent sagging under the load of heavy winter coats. The tube is placed into wardrobe rail brackets. These end supports are either inserted directly into the 5 mm holes using pre-fitted locating pins or screwed into place using short chipboard screws (usually 3.5 x 15 mm).

Pull-Out Wardrobe Rails for Shallow Cabinets

For wardrobes with a 350 mm depth, a front pull-out fitting is strictly necessary. These fittings consist of a fixed runner screwed underneath a shelf and a movable rail. Technically, a distinction is made between a partial extension and a full extension. A runner with ball-bearing or roller runner action allows clothing to be pulled forward out of the cabinet. Fixing is carried out vertically upwards into the shelf, which means the 32 mm hole line in the side panels is not used here. The load capacity of such pull-outs usually varies between 10 kg and 15 kg.

Alternative Concepts: Wall Mounting

In walk-in dressing rooms, the wardrobe carcass is often complemented by external elements. Wall mounting of wardrobe rails between two cabinet modules or between a cabinet and a wall is a common method to maximise available space. For this purpose, closed wall sockets are used, which are anchored directly into masonry using wall plugs and appropriate screws.

Installation and Retrofitting of Rails

Fitting hardware designed to be suitable for IKEA Pax requires precision, but only basic tools. The procedure is similar to installing other technical furniture components, such as fitting flap stays or a dish drainer for wall cabinet in a kitchen.

Required tools:

• Tape measure or folding rule
• Cordless screwdriver with matching bits (usually PZ2)
• Hacksaw if required (for cutting to size)
• Metal file for deburring

Step-by-Step Installation (Transverse Rail)

1. Determine the height: Count the hole rows from bottom to top to ensure both brackets are mounted at precisely the same height. For long coats, a clearance of at least 1600 mm from the base shelf is recommended.
2. Mount the brackets: Position the wardrobe rail brackets against the side panels. Use the 5 mm holes for alignment. Secure the brackets using the supplied screws.
3. Cut the rail to size (if necessary): If using a universal oval tube, measure the clear internal width (e.g. 964 mm) and subtract the material thickness of both brackets (typically 4 mm to 6 mm in total). Cut the tube strictly at a right angle and deburr the cut edges.
4. Insert: Place the tube into the installed brackets from above.

Installation of a Pull-Out Rail (350 mm Depth)

1. Position the pull-out centrally beneath the shelf.
2. Ensure that the front edge of the fitting sits flush with the front edge of the shelf so that the wardrobe door closes unhindered.
3. Screw the runner from below into the shelf using short chipboard screws (max. 15 mm length for 18 mm thick shelves).

Note: If you are also fitting electronic devices or lighting inside your wardrobe, you should plan cable routing in advance. Similar to using a cable grommet for desk, appropriate cut-outs can be drilled into the back panel to route cables out of sight.

Frequently Asked Questions (FAQ)

How much weight can a wardrobe rail hold in a 100 cm carcass? The load capacity depends on the material and wall thickness of the tube. A classic oval tube made of steel carries approximately 15 kg to 20 kg over a length of 964 mm before visible sagging occurs. Under very heavy loads (e.g. motorcycle jackets), installing an additional centre support screwed upwards into the shelf above is recommended. (This follows a different principle than a gas strut for heavy flaps, where force is calculated in Newtons; here it is purely a matter of static bending strength).

Can I fit a standard wardrobe rail in a 35 cm deep wardrobe? While physically possible to mount, it is functionally impractical. Because a clothes hanger is approximately 450 mm wide, it would hang diagonally, protrude beyond the carcass, and prevent sliding or hinged doors from closing. Only pull-out wardrobe rails (front pull-outs) are suitable for this carcass depth.

What is the difference between System 32 and other hole patterns? System 32 is the European industry standard for furniture manufacturing. The centre-to-centre distance between holes is exactly 32 mm, and the distance to the front edge is typically 37 mm. When purchasing replacement hardware compatible with IKEA Pax, these dimensions ensure that the fixing points of the fittings align perfectly with the factory drillings in the carcass.