How to Fit Kitchen Door Hinges: A Step-by-Step Guide

Fitting concealed cabinet hinges is one of the most rewarding joinery tasks you can undertake in a kitchen renovation or repair. Whether you are replacing worn hardware or hanging brand-new cupboard fronts, learning how to fit kitchen door hinges correctly ensures that doors hang straight, open smoothly, and close quietly without catching adjacent panels.

Essential Tools and Preparation

Before beginning your installation, gather the correct tools to ensure neat, accurate work across all cabinets:

• Cordless drill and screwdriver: A manual screwdriver is ideal for final fine adjustments.
• 35 mm Forstner bit: Required to drill the standard hinge cup recess on un-bored doors.
• Combination square and tape measure: For precise marking and squaring.
• Bradawl or centre punch: To create pilot dimples so screws do not wander.
• Pencil and masking tape: Useful for marking depths on drill bits.

Always inspect your cabinet carcass and door thickness first. Standard UK kitchen doors are typically 18 mm thick, which provides ample depth for the standard 11.5 mm to 12.5 mm deep cup hole without breaking through the front face.

Measuring and Drilling the Hinge Cup Recesses

If you are hanging new, undrilled doors, you must bore the cup holes accurately before you can fit kitchen door hinges properly.

1. Set standard vertical positions: Measure 100 mm from the top and bottom edges of the door to the centre of the hinge hole. For taller larder units, add a third or fourth hinge spaced evenly between them.
2. Mark the setback: The distance from the edge of the door to the edge of the 35 mm hole (the hinge tab or drilling distance) is usually between 3 mm and 5 mm. Mark the exact centre point of your circle accordingly.
3. Drill the cup hole: Using your 35 mm Forstner bit, drill down to the depth recommended for your hinge cup (typically 12 mm). Use a drill press or depth stop to prevent penetrating the decorative face of the door.

Mounting the Hinges and Baseplates

Once your recesses are clean and free of wood dust, insert the hinge cups into the door. Use a straight edge placed across both hinge bodies to ensure they sit completely parallel to the door edge before driving the securing screws home.

Next, move to the cabinet carcass. Standard baseplates align with the industry-standard 32 mm system holes found inside pre-drilled cabinets. If your carcass lacks system holes, mark the mounting plate positions by aligning them precisely with the centre lines of your door-mounted hinges. Ensure the plate edge sits flush with the carcass setback, typically 37 mm from the front edge to the first screw hole.

Attaching and Adjusting the Doors

Modern concealed fittings generally feature a clip-on mechanism. To connect the door, align the hinge arm with the carcass baseplate and press firmly until you hear an audible click. If working alone, resting the bottom edge of the door on timber packers helps support the weight during attachment.

Once hung, virtually every installation requires 3-way adjustment to achieve clean, uniform shadow gaps:

• Lateral adjustment (side-to-side): Turn the front screw on the hinge arm to tilt the door left or right, aligning vertical gaps between doors.
• Vertical adjustment (height): Loosen the top and bottom screws on the carcass mounting plate to shift the door up or down to align with adjoining drawer fronts.
• Depth adjustment (in-and-out): Turn the rear screw to pull the door closer to the carcass or push it further out, preventing binding against the cabinet frame.

Frequently Asked Questions

How many hinges do I need for a tall kitchen unit?

Doors under 900 mm in height typically require two hinges. For doors between 900 mm and 1600 mm, three hinges are standard, while heavy larder doors up to 2200 mm often require four or five hinges to distribute the weight evenly.

Can I replace old hinges without drilling new holes?

If you want to know how to fit a kitchen door hinge to existing units, check the cup diameter and carcass screw spacing. As long as your existing doors use standard 35 mm holes and 32 mm spaced carcass holes, modern clip-on hinges will usually fit directly into the original positions.