Guide to Replacing Kitchen Cupboard Fronts and Hinges

Undertaking a kitchen cupboard fronts replacement is one of the most effective ways to refresh a tired kitchen without the expense of tearing out sound cabinetry. While swapping the doors transforms the aesthetic, the project relies entirely on selecting the right hardware and getting your measurements spot on. Aligning new doors with existing carcasses requires careful attention to hinge hole drilling, cup depth, and mounting plate positions.

Assessing Existing Carcasses and Door Overlay

Before ordering new doors or fittings, inspect your current cabinet carcasses. Most modern UK kitchens use standard 18 mm or 15 mm MFC (melanined chipboard) carcasses built around the standard 32 mm system. You need to identify whether your doors are full overlay, half overlay, or inset:

• Full Overlay: The door covers almost the entire front edge of the cabinet side panel, leaving a small gap (typically 2–4 mm) between adjacent doors.
• Half Overlay: Two doors share a single central divider panel, with each door covering half the edge.
• Inset: The door sits completely inside the carcass frame, flush with the front edges.

Matching your replacement doors to your carcass type ensures your hinge geometry works correctly from day one.

Hinge Cup Drilling and Positioning

Most modern cabinet fronts use standard 35 mm concealed hinges (also known as European or cup hinges). If your new doors arrive undrilled, you will need to drill the hinge cup holes yourself using a 35 mm Forstner bit:

1. Cup Diameter and Depth: The standard cup diameter is 35 mm, with a typical depth between 11.5 mm and 12.5 mm. Be careful not to drill too deep, particularly on 18 mm doors, to avoid piercing the front face.
2. Boring Distance (K-distance): This is the distance from the edge of the door to the edge of the 35 mm hole, usually between 3 mm and 6 mm. Check the specification sheet of your chosen hinges before drilling.
3. Vertical Position: Standard hinge centres are commonly placed 100 mm to 120 mm from the top and bottom edges of the door. Measure your existing cabinet plates to replicate the spacing if you want to reuse existing carcass screw holes.

Mounting Plates and Soft-Close Upgrades

A kitchen cupboard fronts replacement is the ideal opportunity to upgrade to concealed soft-close hinges. When fitting new hinges, remember that the hinge arm and mounting plate work together to set the overlay:

• Plate Height (Thickness): Mounting plates come in various heights (typically 0 mm, 2 mm, or 4 mm) to accommodate different carcass wall thicknesses and adjust door overlay.
• Fixing Types: Standard plates use wood screws, whereas Euro screws (5 mm pre-drilled holes) provide a much stronger grip in chipboard carcasses where old screw holes may have worn loose.
• 3-Way Adjustment: Quality concealed hinges allow fine adjustment across three planes: lateral (side-to-side), vertical (up-and-down), and depth (in-and-out). This allows you to achieve consistent shadow gaps across all your fronts.

Fitting Modern Cabinet Handles and Hardware

Once your doors are hung and aligned, installing modern cabinet handles completes the transformation. To ensure clean, professional results:

• Create or buy a simple drilling template to ensure identical hole centres on every door.
• Standard handle hole centres follow 32 mm increments (e.g., 96 mm, 128 mm, 160 mm, 192 mm). Double-check your measurements before drilling through the front face.
• Place a scrap piece of timber firmly against the back of the door where the drill bit will exit to prevent breakout and splintering.

Frequently Asked Questions

Can I reuse my old mounting plates with new hinges?

It is generally best to replace mounting plates alongside hinges. Even when cup diameters are identical, clip-on mechanisms and arm geometries often differ between hinge models and generations.

How do I fix worn or stripped screw holes in my carcass?

You can repair stripped holes using threaded screw-in inserts, wooden dowels glued into the damaged area, or retrofit hinge repair plates that provide a fresh, solid mounting surface across the cabinet side.