Full-Extension Runners as Replacements for Nobilia Kitchens

A full-extension runner allows 100% pull-out, whereas a single-extension runner exposes only around 75% of the drawer.

When replacing defective runner slides, hinges, or plinth feet in existing fitted kitchens, matching the technical parameters precisely is essential. Kitchen carcasses are manufactured to industrial standards. For the installer or ambitious DIYer, this means that as long as the hole pattern, nominal length in mm, and load capacity in kg match, brand-independent fittings can easily be installed as replacements for Nobilia kitchens or other established kitchen systems. This guide breaks down the technical requirements to accurately identify and professionally install compatible replacement hardware.

What to Look for Regarding Compatibility

The foundation of modern furniture construction is System 32. This standardised grid defines the spacing of the drill holes on the carcass side panels. The distance from hole centre to hole centre is exactly 32 mm. The front row of holes is positioned 37 mm from the front edge of the carcass as standard. The drill holes themselves typically have a diameter of 5.0 mm, which is designed precisely for the use of Euro screws.

When looking for kitchen cabinet pull-outs as an alternative to original Nobilia components, the fixing points of the new runner must align with this grid. Alongside the hole pattern, the nominal length of the slide is the second critical factor. Common lengths for kitchen base units range from 250 mm - 600 mm. The nominal length of the runner must match the depth of the wooden drawer, but must not exceed the internal carcass depth.

Runner Types and Mechanics

When selecting slides, a distinction is made between different runner types:

• Ball bearing runner: These slides are mounted to the sides of the drawer. They consist of interlocking telescopic profiles that run on steel ball bearings.
• Undermount runner: The mechanics of an undermount runner work concealed beneath the drawer, absorbing shocks and distributing the load evenly. The slides are mounted invisibly under the drawer base and locked to the front using a locking device.

Furthermore, motion functions must be clearly distinguished: Soft-Close (a fluid- or gas-pressurised damping mechanism that slows down the closing action) and Push-to-Open (a spring mechanism that ejects the handleless front upon pressure) are mechanically opposing principles and must not be confused when sourcing replacement parts.

Selecting the Right Runners by Cabinet Width

Kitchen cabinets are categorised into standardised widths. While replacing a slide depends on depth, the cabinet width often dictates the weight the runner must support (load capacity in kg). Wider units require heavy-duty runners, whereas narrow pull-out larder units or towel holders need lighter slides.

• For narrow spaces compatible with Nobilia pull-out units, a kitchen cabinet pull-out 15 cm or a kitchen cabinet pull-out 20 cm is frequently required. Precise alignment is imperative here, as narrow, tall frontals are prone to leverage effects.
• Standard drawers for cutlery or provisions mostly use a kitchen cabinet pull-out 30 cm or 40 cm.
• For wide pan drawers, a kitchen cabinet pull-out 60 cm is used. Here, a load rating of at least 30 kg, or preferably 45 kg, should be selected to prevent the runners from sagging under maximum load.

Concealed Hinges: Replacements for Cabinet Hinges

Alongside drawers, the hinges on standard opening doors are the components subjected to the highest wear. The concealed cup hinge is the industry standard. When a hinge on a wall unit or base unit needs replacement, three dimensions are decisive:

1. Cup diameter: In the kitchen furniture industry, the standard diameter of the hole drilled into the door front is 35 mm.
2. Door overlay type: If the door completely covers the carcass side panel when closed, it is a full overlay. If the door shares the side panel with an adjacent door, a half overlay is required. If the door closes flush inside the carcass opening, it is an inset door.
3. Opening angle: An angle of 110° is standard for regular doors.

If you are looking for concealed hinges / cabinet hinges as replacements, verify these three parameters on the old fitting. For a direct replacement on a standard kitchen door, a model from the concealed hinges / cabinet hinges 110 degrees category is suitable. To prevent doors from slamming shut, many installers take this opportunity to upgrade directly to concealed hinges / cabinet hinges with damping (Soft Close). The damper unit in these models is integrated directly into the hinge arm.

Adjusting Plinth Feet and Wall Units

Another common maintenance task in kitchens is levelling. Kitchen base units stand on adjustable plinth feet to compensate for uneven floors. When replacing plinth feet suitable for Nobilia kitchens, pay attention to the mounting plate on the carcass base. The feet are frequently screwed via an M8 or M10 thread into an adapter plate attached to the base. Height adjustment is carried out by rotating the foot tube, typically across ranges from 100 mm to 150 mm.

For wall units, alignment is performed via the cabinet suspension bracket inside the unit. Behind a small plastic cover cap in the upper rear corners, two adjustment screws are located. The lower screw regulates depth (the distance to the wall), while the upper screw adjusts the height in mm.

Installation and Retrofitting: Technical Steps

Replacing fittings requires precision and the correct tools.

Required tools:

• Cordless screwdriver with torque limiter
• Bits of type PZ (Pozidriv) size 2 and TX (Torx)
• Tape measure or folding rule
• Joiner's square

Step-by-step replacement of an undermount runner:

1. Remove the drawer: On most systems, plastic locking devices are located on the underside of the front. Squeeze these together and pull the drawer upwards and forwards off the slides.
2. Dismantle the old runners: Unscrew the Euro screws (PZ 2) from the carcass side panels.
3. Position the new runners: Align the compatible replacement slide with the System 32 hole pattern. Ensure that the 37 mm distance from the front edge is maintained.
4. Screw in place: Fix the slides using the Euro screws. Set the torque on the cordless screwdriver to a low level to prevent stripping the chipboard core.
5. Replace locking devices: Unscrew the old locking devices from the drawer base and replace them with the brackets compatible with the new runner system.
6. Insert the drawer: Place the drawer onto the extended slides and push backwards with gentle pressure until the locking devices audibly engage.

After installation, the gap alignment of the frontals must be adjusted. Most modern runner systems feature adjustment wheels on the locking devices to adjust the frontal in height (typically +/- 2.0 mm) and tilt.

Frequently Asked Questions (FAQ)

Which hinges are suitable as replacements for Nobilia kitchens? The decisive factor is not the brand, but the technical specifications. The replacement hinge must have a 35 mm cup diameter and fit the existing mounting plate (cruciform mounting plate) in the carcass. The overlay type (full overlay, half overlay, or inset) must be selected identical to the original component.

Can I replace a single-extension runner with a full-extension runner? Yes, this is structurally possible. The prerequisite is that the nominal length of the new runner matches the old one exactly and the fixing points correspond to the System 32 grid in the carcass. However, a full-extension runner often requires slightly more side clearance – check the manufacturer specifications for the installation width (often 12.5 mm or 13.0 mm per side).

How do I adjust the damping on a hinge? On modern concealed hinges with integrated Soft-Close, the damping force can often be activated or deactivated via a small switch on the hinge cup. Stepless adjustment of the damping force in Newton is usually not provided on standard fittings; instead, on lightweight doors, the damping on one of the two hinges is completely deactivated to ensure smooth closing.