Installing Magnetic Catches: Step-by-Step Guide to Fitting Housing and Counterplate

A magnetic catch secures furniture doors using magnetic holding force and always comprises a housing with an integrated magnet plus a metallic counterplate.

These fittings are primarily used on furniture fronts that are not equipped with a built-in soft-close or catch mechanism. Typical applications include classic hinged doors with standard hinges, lightweight flaps, or handleless fronts paired with a recessed grip. Correct installation is crucial for the service life of the component and reliable closing. A precisely fitted magnet keeps the door flush against the carcass, stops rattling, and provides a distinct pull resistance when opening.

This guide leads you step by step through the professional installation of the magnet housing and counterplate, explains exact positioning, and demonstrates how to compensate for typical installation tolerances.

Areas of Application and Technical Requirements

Before beginning installation, the suitability of the fitting for the respective piece of furniture must be verified. Magnetic catches are classified by their holding force in kilograms. For small, lightweight doors made from chipboard, a model with 2 kg to 3 kg holding force is often sufficient. For solid doors, such as on a large wardrobe for 2 people, versions with 4 kg to 6 kg or the use of two catches per door (top and bottom) are necessary.

A magnet is not the right choice for every furniture design. For heavy, upward-opening fronts, gas struts for heavy flaps are the technically safer solution, as they actively support the weight of the flap and control the movement sequence. In classic case furniture, such as a sideboard for a TV or a low-profile lowboard for a TV, magnetic catches demonstrate their full potential as compact, low-wear retention fittings. They also ensure secure closure in kitchen or utility cabinets—for instance, those housing a dish drainer for a wall cabinet—even when the hinges lack their own spring-closing action.

Required Tools and Installation Materials

For precise installation on the furniture front and cabinet interior, the following tools are required:

• Cordless drill/driver with torque control
• Wood drill bit (Ø 2 mm or 2.5 mm) for pilot holes
• Depth stop for the drill bit (alternatively: masking tape for marking)
• Screwdriver or suitable bit (usually PZ for Pozidriv or TX for Torx)
• Bradawl for exact centre-marking of drill holes
• Folding ruler or tape measure
• Pencil
• Double-sided adhesive tape or masking tape (for transferring the position)

Chipboard screws serve as the fixing material. For the magnet housing, panhead screws with a diameter of 3 mm to 3.5 mm are generally used. The panhead ensures optimal surface pressure on the plastic or metal housing. For the counterplate on the door side, countersunk screws are strictly required. The head must sit completely flush within the countersunk hole of the metal plate so that a completely flat contact surface with the magnet is achieved.

Step-by-Step Guide: Fitting a Magnetic Catch

Installation requires precision. Aligning the metal plate is like fitting a key into a lock – only when both components align perfectly will the system engage with maximum holding force and allow the door to close flush.

Step 1: Determine the Housing Position inside the Carcass

The catch is positioned inside the cabinet. On tall doors, fit it on the handle side, ideally at the height of the door handle, to minimise leverage when pulling. On smaller doors, installation usually takes place at the top or bottom of the carcass (top panel or base panel).

The setback from the front edge of the carcass is the most critical dimension. The housing must be mounted far enough back so that the door sits flush with the outer edges of the cabinet when closed. The formula for the setback is: Thickness of the furniture front + thickness of the counterplate + any door buffers = distance from the front edge of the magnet to the outer carcass edge. With a standard door (19 mm) and a 1.5 mm thick counterplate, the front edge of the magnet is positioned exactly 20.5 mm behind the front edge of the carcass.

Step 2: Mark and Drill Pilot Holes

Hold the housing at the determined position. Use the bradawl to mark the centre of the slotted holes in the housing onto the wood. Do not mark the hole at the edge, but exactly in the centre of the slot. This provides you with a few millimetres of adjustment play forwards and backwards later on.

Drill the pilot holes using a 2 mm wood drill bit. The drilling depth should be approximately 2 mm shorter than the length of the screw used (e.g. 13 mm deep for a 15 mm screw). Use a depth stop to avoid drilling right through the carcass.

Step 3: Fasten the Magnet Housing

Position the housing and drive in the panhead screws. Initially, tighten the screws only hand-tight. You should still be able to slide the catch within the slotted holes by applying gentle pressure. This is essential for the subsequent fine adjustment of the door reveal.

Step 4: Transfer the Position to the Furniture Front

The most common source of error during installation is a misaligned counterplate. To transfer the position of the fixed magnet accurately to the inside of the door, use a proven fitter's trick: place the metal plate onto the mounted magnet so it is held by magnetic force. Stick a small piece of double-sided adhesive tape onto the back of the metal plate. Now close the furniture front carefully and press gently against the door from the outside, directly over the position of the catch. Open the door again. The metal plate will now remain stuck to the exact position on the inside of the front where it needs to be screwed down.

Step 5: Drill Pilot Holes and Mount the Counterplate

Mark the drill holes for the metal plate using the bradawl. Remove the plate and drill the pilot holes. Caution: furniture fronts are often only 16 mm or 19 mm thick. Pay strict attention to the drilling depth so the drill bit does not break through to the visible front surface. Fasten the metal plate using countersunk screws. Ensure the screw head sits absolutely flush with the plate or fractionally below it. A protruding screw head drastically reduces the contact area with the magnet and cuts the holding force to a fraction.

Step 6: Fine Adjustment and Function Check

Close the door. Check the door alignment and whether the front sits flush with the carcass.

• Does the door protrude past the carcass? Loosen the housing screws slightly and push the catch back by 1 mm to 2 mm in the slotted hole.
• Does the door hit the carcass hard before the magnet engages? Slide the housing forward.

Tighten the fixing screws firmly once the door sits completely flush and the magnet makes full-surface contact.

Common Installation Mistakes

Even with simple fittings, minor deviations can impair function. Avoid these typical mistakes:

1. Incorrect screw heads on the counterplate: Using raised-head or panhead screws on the metal plate causes the magnet to rest only on the screw head. The resulting air gap between magnet and plate breaks the magnetic field. Countersunk screws are mandatory.
2. Omitting pilot holes in MDF or chipboard: Driving screws directly into the edge or face of MDF or chipboard without pilot drilling will split the material. Pre-drilling with a 2 mm bit is essential for 3 mm thick screws.
3. Rigid mounting without slotted holes: Screwing the housing through round holes instead of slotted holes eliminates any adjustment capability. Timber moves, and hinges can drop over the years. Slotted holes are vital for long-term functionality.

Integration into Different Furniture Concepts

The type of furniture often dictates the exact positioning. Hallway furniture situated near a wall-mounted wardrobe rail often features tall, continuous cabinet doors. Here, it is advisable to install two catches – one in the upper third and one in the lower third. This prevents the long timber door from warping with changes in humidity, as it is held flat against the carcass at two separate points.

For small compartments, such as those typically found in a TV unit or a narrow bathroom cabinet, a single catch mounted centrally on the side opposite the hinge is sufficient.

FAQ – Frequently Asked Questions about Installation

How strong does a magnetic catch need to be? For standard furniture doors (up to approx. 600 mm x 600 mm) made from 19 mm chipboard, a holding force of 2 kg to 3 kg is sufficient. For solid timber doors or very tall cabinet doors (e.g. 2000 mm high), models with 4 kg to 5 kg or two separate catches should be used.

Can I glue the metal plate instead of screwing it? Self-adhesive counterplates equipped with a strong 3M adhesive pad are available. These are suitable for glass fronts or very thin materials that cannot be drilled. For traditional timber fronts, screw fixing is always preferable, as the tensile stress from opening the door will fatigue the adhesive over time.

What should I do if the magnet is too strong? If opening the door requires excessive force, you can stick a strip of clear adhesive tape over the metal plate. This ultra-thin barrier creates a minimal air gap between magnet and metal, reducing the holding force noticeably and in a controlled manner without having to replace the components.

Why is the door rattling even though the magnet is engaged? This occurs when the magnet sits too far back inside the carcass. The door is held, but retains forward play. Loosen the housing screws and slide the catch forward in the slotted hole by approx. 1 mm until the door rests firmly against any carcass rubber buffers under slight tension.