Cabinet Door Installation: Hinges, Alignment and Adjusting

Most crooked cabinet doors are not the door’s fault. A good cabinet door installation depends on three things lining up: a hinge cup bored at the right distance from the edge, a mounting plate set at the right height on the cabinet box, and a few minutes spent with a screwdriver on the hinge’s adjustment screws. Get those right and even inexpensive doors close flush with even gaps.

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For modern frameless and most face-frame cabinets, the standard is the concealed European-style hinge. It has a round cup, usually 35mm in diameter, that sits in a shallow hole bored into the back of the door, plus a separate mounting plate screwed to the cabinet. The two clip or slide together, and three adjustment screws let you move the door side to side, up and down, and in and out. That adjustability is what makes a clean result possible without perfect carpentry.

If you are replacing doors on existing cabinets, your job is mostly matching the old hinge type and boring pattern. If you are hanging new doors, start by choosing the overlay, because that determines which hinge you buy and where everything is positioned.

Cabinet Door Installation Basics: Choosing Overlay and Hinge Type

Overlay describes how much of the cabinet box or face frame the door covers when closed. It is the first decision in any cabinet hinge installation, since hinges are sold by overlay.

• Full overlay: the door covers nearly all of the cabinet edge, leaving a small gap (often about 1/8 inch) between neighboring doors. Common on frameless cabinets and modern kitchens.
• Half overlay: two doors share one center partition, each covering about half of it.
• Inset: the door sits inside the opening, flush with the face frame. Beautiful, but it demands precise gaps and specific inset hinges.
• Partial or traditional overlay (face frame): the door covers part of the frame, often 1/2 inch, and may use face-frame-mount hinge plates.

Measure an existing hinge before you shop. Note the cup diameter, the brand’s overlay rating, whether it is soft-close, and whether the plate screws to the cabinet side wall or to the face frame. Bringing an old hinge to the store is the easiest way to match it.

Tools and Materials

• Concealed hinges and mounting plates matched to your overlay
• 35mm Forstner bit (or the size your hinge specifies)
• Drill, ideally on a drill press or with a concealed hinge drilling jig that controls depth and edge distance
• Combination square, tape measure, and a sharp pencil or awl
• #6 or #7 wood screws of the length recommended by the hinge maker (often 5/8 inch)
• #2 Phillips screwdriver (a hand driver gives better control for adjustment than a drill)
• Door bumpers, painter’s tape, and scrap wood for test bores
• Spacers, shims, or a stack of playing cards for setting gaps

A hinge boring jig is the single most useful accessory here. It clamps to the door edge, sets the cup’s distance from the edge, and uses a depth stop so you never drill through the face of a finished door.

Step-by-Step: Boring Cup Holes and Hanging Doors

1. Mark the hinge locations

Place hinges about 3 to 4 inches from the top and bottom of the door, measured to the cup center. Doors taller than about 40 inches, or heavy doors, need a third hinge in the middle; very tall pantry doors may need four or five. Keep the positions identical on matching doors so the row looks uniform.

2. Set the edge distance

Cup holes are typically bored with the edge of the hole about 3mm to 6mm from the door edge. Hinge makers call this the boring distance, and it changes the overlay slightly, so follow the spec sheet. A consistent 4mm or 5mm is common. Mark the cup center line with a square.

3. Test on scrap

Bore one hole in a scrap of the same thickness first. Cup depth is usually around 1/2 inch (about 12 to 13mm). The cup should sit flush in the hole without rocking. On a standard 3/4 inch door that leaves roughly 1/4 inch of material behind the cup, so depth control matters.

4. Bore the door

Lay the door face-down on a clean, padded surface. Clamp your jig or set the drill press fence and bore each cup hole at a moderate speed, letting the Forstner bit cut rather than forcing it. Clear chips often.

5. Attach hinges to the door

Press each cup into its hole, square the hinge arm to the door edge with a combination square, and drive the screws. Many hinges have pre-inserted dowels that press in instead.

6. Install mounting plates

On frameless cabinets, plates mount on the inside side wall, usually on a line 37mm from the front edge (the common 32mm-system standard). Hold the door against the opening with hinges attached, mark the plate positions, or use a plate-setting jig. Drive the plate screws into the center of their adjustment slots so you keep range in both directions.

7. Clip the door on

Hook the back of the hinge arm onto the plate and press the front until it snaps. With slide-on hinges, slide the arm over the plate and tighten the locking screw. Check that the door swings freely before adjusting.

Adjusting Hinges for Perfect Alignment

Almost every concealed hinge offers three-way adjustment. Make small moves, about a quarter turn at a time, and adjust the top and bottom hinges together unless you are deliberately correcting a tilt.

• Side-to-side (lateral): the screw closest to the door edge on the hinge arm. It moves the door left or right to even the gap between doors, and it also fixes a door that tilts: adjust only the top or only the bottom hinge.
• Depth (in-out): the screw toward the back of the arm, or a cam on some plates. It pulls the door tighter to the cabinet or pushes it out so it closes flush.
• Height (up-down): made at the mounting plate, either with a cam screw or by loosening the plate screws in their slots. It aligns the tops of adjacent doors and drawer fronts.

Aim for consistent gaps of roughly 1/16 to 1/8 inch between doors and a reveal that looks even along the whole run. Step back several feet and sight along the tops of the doors. Your eye catches misalignment across a row better than a tape does.

Cupboard Door Installation on Older or Face-Frame Cabinets

Older cupboard door installation often involves surface-mount or semi-concealed hinges that screw to the face of the frame and the back of the door. Those hinges offer little or no adjustment, so accuracy depends on setting the screw holes correctly. Use a self-centering (Vix) bit to drill pilot holes so the hinge does not shift as screws tighten.

If you want to upgrade to concealed hinges on face-frame cabinets, buy hinges designed for face frames, or add blocking behind the frame so a standard plate has something flush to mount to. Converting may require boring new cup holes in the old doors. Fill and repaint old screw holes, and check that the doors are thick enough, generally 5/8 inch or more, to accept a 35mm cup safely.

Troubleshooting Common Door Problems

Door will not stay closed: check that both hinges are fully clipped onto their plates. If they are, adjust depth so the hinge spring engages, or add a soft-close adapter.

Doors hit each other: increase the gap with the lateral screws, or confirm that you bought the correct overlay; full overlay hinges on a shared partition will collide.

Stripped screw holes: glue in a hardwood toothpick or golf tee, trim flush, and redrill a pilot. Particleboard cabinets respond well to purpose-made repair inserts.

Door sags over time: heavy or tall doors need an extra hinge. Tighten the plate screws and readjust height.

Warped door: a door bowed more than about 1/8 inch cannot be fully corrected with hinges. A middle hinge sometimes pulls it in; otherwise replace the door.

Costs and When to Call a Pro

For a DIY cabinet door installation, concealed hinges generally cost a few dollars each for basic models and more for soft-close or specialty versions. A drilling jig is a modest one-time purchase. Doing a full kitchen yourself mostly costs time: an afternoon for a small run, a weekend for a large kitchen with new doors.

Professional cabinet installers or handymen usually charge per door or by the hour, and pricing varies by region. Call a pro for inset doors, which have tight tolerances; for custom or expensive doors where a mis-bored hole is costly; for glass-front doors; or when cabinets are out of square or loose on the wall, since that points to a mounting problem the hinges cannot hide.