How to Replace a Cabinet Door — Step-by-Step Guide

Replacing a cabinet door requires the precise removal of the old front, correctly identifying the overlay type, and accurately fitting and adjusting the concealed cup hinges.

Whether renovating a kitchen, refreshing living room furniture, or replacing damaged fronts: changing a furniture door is a standard task in cabinetmaking and joinery. This process demands a technical understanding of hardware fittings, as even minor deviations of a single millimetre can lead to uneven gaps or rubbing doors.

This guide is aimed at fitters and experienced DIY enthusiasts. It provides detailed guidance through every stage — from selecting the suitable hinge to the final 3D adjustment of reveal gaps. When holes are already pre-drilled, the task takes around 15 to 20 minutes per door. If new hinge cup holes need to be drilled, the working time increases accordingly.

Required Tools and Materials

To replace a cabinet door professionally, prepare the following tools and materials:

• Cordless screwdriver with suitable driver bits (usually PZ or TX)
• Forstner bit (standard 35 mm diameter) for new cup holes
• Wood drill bit (5 mm or 3 mm diameter) for pilot holes
• Folding rule or tape measure
• Try square
• Pencil or bradawl for marking
• New cabinet door (e.g. made from chipboard or MDF)
• Matching concealed hinges and mounting plates
• Chipboard screws (e.g. 3.5 x 15 mm, countersunk)

Preparation: Determining the Correct Overlay Type

Before fitting the new door, the exact position of the door relative to the cabinet carcass must be analysed. The door will only close properly with the correct hinge type. In furniture hardware engineering, three basic mounting applications are distinguished:

1. Full overlay: The closed door covers the front edge of the cabinet side panel almost entirely. Only a minimal side reveal remains for the movement of the hinge. This is the most common variant for standalone cabinets.
2. Half overlay (twin overlay): Two doors hinge on a single central partition panel. Each door covers the front edge of the partition only halfway (approx. 8 mm to 9 mm overlay per door). The hinge has a visible crank (offset) for this purpose.
3. Inset: The door sits flush inside the cabinet carcass. The front edges of the carcass side panels remain fully visible when the door is closed. The hinge features a high crank.

Note: If dealing with an upward-opening flap rather than a standard side-hung door (for example on wall units), different fittings are required. Here, gas struts for heavy flaps are frequently used, where the force in Newtons must be matched precisely to the weight and height of the front panel.

Step-by-Step Guide: Replacing a Cabinet Door

Step 1: Removing the Old Cabinet Door

Open the old door to an angle of around 90°. Modern hinges feature a clip-on mechanism. Press the release button at the rear end of the hinge arm to unclip the hinge from the cruciform mounting plate. The door can then simply be pulled forward and removed.

On older models or slide-on hinges, loosen the fixing screw on the mounting plate using a screwdriver. Then slide the hinge arm off the plate. If the mounting plates on the carcass are also being replaced, unscrew the corresponding chipboard screws.

Step 2: Transferring Dimensions and Drilling the Cup Hole

If the new door does not have pre-drilled holes, they must be drilled precisely to match the dimensions of the carcass. Place the old and new doors side by side on a clean workbench.

Measure the distance from the top and bottom edges of the old door to the centre of each cup hole. Transfer these measurements onto the new front. The edge distance (drilling distance) from the door edge to the edge of the hole is usually 3 mm - 6 mm for standard fittings.

Position the Forstner bit exactly on the marking. Drill the 35 mm diameter hole. The drilling depth is generally 11.5 mm - 13 mm. Ensure you do not drill through the front face of the door.

Step 3: Mounting the Concealed Hinges on the New Door

Insert the hinge cup into the freshly drilled recess. Align the hinge arm at an exact 90° angle to the door edge using a try square. If the hinge is twisted, the door cannot be clipped onto the mounting plate later.

Mark the fixing screw holes to the left and right of the cup. Make pilot marks with a bradawl and secure the hinge using short chipboard screws. Alternatively, toolless hinges with expanding dowels are available, where a flap is pushed down to anchor the cup firmly into the wood.

Step 4: Securing the Cruciform Mounting Plate to the Carcass

If new mounting plates are required, screw them onto the inside face of the cabinet carcass. Most industrially produced furniture uses the System 32 standard. This features a continuous line of holes with 32 mm hole spacing and a setback distance of 37 mm from the front edge.

Fasten the mounting plate with suitable screws into the hole line. Ensure that the height aligns precisely with the hinges on the new door.

Step 5: Hanging the Door

Bring the new cabinet door up to the carcass. For clip-on hinges, place the front hooks of the hinge arm into the mounting plate and press the rear section until it audibly clicks into place. On large fronts, such as a two-person wardrobe, always start with the top hinge to support the weight of the door.

Step 6: 3D Adjustment for Perfect Reveals

Aligning door gaps is like tuning an instrument — only fine-tuning across all three axes creates a neat overall look and smooth operation. Adjustment screws on the hinge arm allow adjustment in three directions:

• Depth adjustment: Loosening the rear screw on the hinge arm allows the door to slide a few millimetres forwards or backwards. This regulates the gap between the door and carcass. Tighten the screw firmly afterwards.
• Side (lateral) adjustment: The front screw on the hinge arm tilts the door left or right. Turning clockwise moves the door edge towards the carcass side panel; turning anti-clockwise widens the gap.
• Height adjustment: The cruciform mounting plate features screws (usually concealed under cover caps) for vertical alignment. Loosen them slightly, slide the door up or down, and re-tighten the screws.

Specific Areas of Application in Furniture Construction

Replacing fronts applies to almost every living space. In kitchens, it is often wall units housing a plate rack insert for wall cabinets that suffer faster wear due to moisture. In living rooms, door fronts on a TV sideboard or a deep TV lowboard are frequently updated to match modern interior trends without replacing an intact carcass.

During office furniture modifications, where a desk cable grommet might simultaneously be routed into the worktop, replacing pedestal or cupboard doors is also a popular step for modernising the workspace.

Common Mistakes and Professional Technical Tips

• Stripped screw holes: If the old chipboard screws no longer grip inside the carcass, simply using thicker screws is ineffective. Instead, drill out the damaged hole to 8 mm, glue in a wooden dowel, and trim it flush. Once cured, the mounting plate can be screwed firmly into the exact same spot.
• Incorrect soft-close and opening mechanisms: A frequent mistake is mixing incompatible closing mechanisms. A hinge with integrated soft-close damping cushions the door gently as it shuts. This must never be combined with a push-to-open (tip-on) mechanism. Push-to-open requires unsprung hinges without a catch spring; otherwise, the door will pull itself shut immediately after pressing the release latch.
• Insufficient number of hinges: A door made from heavy chipboard or solid wood can warp or pull away from fixings if supported by too few hinges. As a technical rule of thumb: up to 900 mm door height requires 2 hinges. Up to 1600 mm requires 3, and up to 2000 mm needs 4 hinges. For heights of 2400 mm and above, 5 hinges should be fitted.

FAQ — Frequently Asked Questions

What is the standard diameter for a concealed cup hinge? The industry standard for a hinge cup hole is 35 mm. For very small or delicate furniture doors (such as compact bathroom cabinets), mini hinges with a 26 mm diameter are also available.

Can I reuse old hinges for a new door? If the mechanical parts are undamaged and the hinges are not bent, they can easily be reused on the new door front. Ensure the spring tension remains strong enough to pull the door completely flush against the carcass.

Why is the cabinet door rubbing against the adjacent door when opening? This typically happens in a half overlay setup when the side reveal is set too narrow. Use the lateral adjustment (the front screw on the hinge arm) to adjust the door 1 mm - 2 mm away from the neighbouring door.

How deep should I drill with the Forstner bit? The standard drilling depth for the cup is 11.5 mm. With typical door thicknesses of 16 mm or 19 mm, this leaves sufficient material intact on the front. Using a depth stop on the drill bit prevents accidentally drilling through the front face.

What does the opening angle mean for hinges? The angle indicates how wide the door can swing open. The standard opening angle is 110°. For corner units or cabinets with internal pull-outs, wide-angle hinges with 155° or 165° are often required so that the open door does not obstruct internal drawers.