Installing Plinth Feet: Attaching Fixing Clips and Gliders to the Carcase Underside

May 21, 2026

A height-adjustable plinth foot is used for the exact alignment of cabinet carcase elements on uneven floors and enables the concealed installation of the plinth fascia using fixing clips.

The correct installation of plinth feet provides the structural foundation for every kitchen run and heavy unit. If the base structure is not completely level, the carcases will twist. The result: inconsistent gap dimensions, jamming drawers, and unsupported worktops. The structure of a modular plinth system generally consists of three components: the glider (mounting plate), the actual foot (threaded tube), and the fixing clip for the front plinth board.

This guide leads you through the professional installation on the underside of the carcase, defines the correct drilling and screw dimensions in mm, and demonstrates how to fit the fascia without stress or tension.

Difficulty Level and Time Required

Difficulty: Medium (basic skills with measuring tools and a cordless screwdriver required)
Time required: Approx. 15 to 20 minutes per cabinet carcase
People: 1 person for assembly, 2 people for standing up and levelling the cabinets

Required Tools and Materials

For professional installation on base and tall units, the following tools and materials are required:

Cordless screwdriver with a matching bit (usually PZ or TX)
Tape measure or folding rule
Pencil and try square
Spirit level (ideally 800 mm long or greater) or cross-line laser
Chipboard screws (countersunk, typically 3.5 x 15 mm or 4 x 15 mm)
Adjustable plinth feet including gliders and fixing clips

Step-by-Step Guide: Installing Plinth Feet

Installation is carried out with the carcase lying down. Aligning a full row of cabinets behaves like clockwork – if a single element in the base is out of line, the entire construction gets thrown off at the top. Precise marking is therefore essential.

Step 1: Calculate and Mark the Setback Dimension

Before the gliders are screwed into place, the exact position on the underside of the carcase must be defined. The setback dimension is crucial here. This dimension determines how far the plinth sits behind the front edge of the carcase to guarantee sufficient toe kick space when standing in front of the cabinet.

Lay the cabinet carcase on its back (the back panel lies flat on the floor).
Measure inwards from the front bottom edge of the carcase. A standard setback dimension to the centre of the plinth foot is 40 mm - 50 mm.
Take into account the thickness of the plinth fascia (usually 16 mm or 19 mm). Once the fascia is mounted, it should sit approximately 20 mm - 30 mm behind the front door.
At the rear of the carcase, the foot is usually fitted offset by 50 mm - 60 mm inwards from the back edge. This creates space for pipes or cables running along the wall.
Using a square and pencil, draw a continuous line for the front and rear row of feet to prevent alignment tolerances.

Step 2: Mount the Fixing Plate (Glider)

The glider is the counterpart to the foot and is screwed securely to the cabinet. It transfers the entire load of the unit to the foot.

Position the glider centrally on the marked crosshair.
Use short chipboard screws with a countersunk head. For a standard base panel made of 16 mm thick chipboard, the screws must not exceed a length of 15 mm. For 19 mm thick bases, 17 mm screws can be used.
Screw the glider firmly through the provided holes (usually 3 or 4 fixing points). Ensure the cordless screwdriver is aligned straight so the screw heads sink flush into the plastic of the glider.
For cabinets with a width of 800 mm or more, a fifth foot must be mounted in the centre to prevent the base from sagging under load.

Step 3: Insert the Plinth Foot and Pre-Adjust

As soon as all gliders are screwed down, the actual foot is fitted.

Push the plastic tube of the plinth foot into the glider socket. On many systems, the foot locks in with an audible click.
Roughly adjust the thread of the foot to the desired plinth height (e.g. 100 mm or 150 mm) at this stage. This saves considerable time and effort later when levelling under the upright cabinet.
Turn all feet on a carcase to the exact same nominal dimension.

Step 4: Stand Up the Cabinet and Level

The carcase is now moved into position.

Carefully tilt the cabinet onto the fitted feet. Avoid heavy shear forces – do not drag the cabinet across the floor; lift it instead to prevent the plastic feet from snapping.
Position the carcase against the wall.
Place the spirit level on the carcase bottom panel (not on the top, as this might be slightly bowed).
Adjust the feet by turning the bottom knurled wheel. A typical adjustment range is -10 mm to +20 mm.
Level the cabinet first in depth (front to back) and then in width (left to right).

Step 5: Attach the Fixing Clip and Plinth Fascia

The plinth fascia conceals the hardware and encloses the space beneath the unit. It is attached to the round feet using special clips.

Measure the exact distances between the front plinth feet and transfer these dimensions to the back of the plinth fascia.
Consider the height: the clip must be screwed to the fascia so that it snaps onto the straight tube section of the foot, not onto the thread.
Screw the clips to the fascia using short screws (e.g. 3 x 15 mm).
Guide the fascia under the cabinet and press it evenly against the feet until the clips securely grip the tube.

Floor Protection for Low Furniture: Gliders as an Alternative

Not every piece of furniture is mounted on high, concealed plinth feet. For chests of drawers, sideboards, or low cabinets that stand on shallow timber plinths or directly on the floor, felt pads are used instead. They protect sensitive hard flooring such as parquet, laminate, or vinyl from scratches and make moving the furniture easier.

Choosing the right gliders depends on the contact surface and the colour of the furniture:

Adapting the geometry: Round felt pads are suitable for cylindrical furniture feet or slim profiles. For continuous plinth rails or wide block feet, rectangular felt pads or square felt pads distribute the pressure optimally.
Visual integration: To keep floor protection unobtrusive, the colour should match the decor or the floor. Under dark furniture or on dark walnut parquet, black felt pads or brown felt pads are ideal. For light tiles, oak decors, or white carcases, white felt pads or grey felt pads are preferred.

These gliders are either self-adhesive and applied to the underside of the carcase, or screwed or nailed for a permanent connection on heavier units.

Common Installation Errors

Screws that are too long: If screws with a length of, for example, 20 mm are driven into a 16 mm thick base, they will pierce the coating inside the cabinet. This causes tear-out and leaves the base vulnerable to moisture penetration.
Incorrect setback dimension for clips: If the fixing clip is mounted too high or too low on the plinth fascia, it will collide with the glider or the adjustment thread. The fascia will then not click in flush or will sit crooked.
Missing centre foot: On wide carcases (from 800 mm upwards), the middle support foot is often omitted. Once the cabinet is loaded with heavy items (e.g. crockery or tools), the base panel will bow downwards.
Levelling without a spirit level: Relying on visual estimation or the floor risks an uneven cabinet run. A deviation of just 2 mm over a one-metre span will prevent adjacent doors from being aligned parallel.

FAQ – Frequently Asked Questions

How many plinth feet does a standard cabinet require? A carcase up to a width of 600 mm requires 4 feet (one in each corner). From a width of 800 mm, a fifth foot must be placed centrally in the rear third to increase load capacity and prevent sagging.

What is the load capacity of a plastic plinth foot? High-quality feet made from thermoplastic material support static loads of 400 kg to 500 kg each. A cabinet with four feet is therefore easily capable of supporting heavy worktops made of granite or concrete.

Can plinth feet be adjusted in height afterwards? Yes, that is their primary purpose. Using the thread at the bottom end, the feet can still be adjusted under load. For hard-to-reach rear feet, a dedicated adjustment tool is used, which engages with the side grooves of the knurled wheel.

What is the adjustment range? Most systems offer a tolerance range of -10 mm (downwards) and +20 mm (upwards) relative to the nominal dimension. A 150 mm foot can therefore be smoothly adjusted between 140 mm and 170 mm.