Full Overlay vs Half Overlay Cabinet Hinges: What the Bore-to-Edge Distance A...

When you close a cabinet door, you never think about the hidden geometry that makes it sit flush against the face frame. Most people do not, until they need to replace a hinge and suddenly discover there are half a dozen overlay types with names that sound like paint finishes. The confusion has a simple root cause that almost no one discusses: a tiny measurement called bore-to-edge.

A full overlay hinge leaves the face frame nearly hidden behind the door. A half overlay hinge splits the frame width between two doors sharing the same stile. The names suggest a 2:1 ratio, but the physical difference between full overlay vs half overlay cabinet hinges traces back to a 3-millimeter offset drilled into the door itself. That single dimension determines whether your door covers the entire frame, half of it, or just a narrow strip.

What Full Overlay and Half Overlay Actually Mean

Cabinet doors sit on top of a face frame, or directly on the cabinet box in frameless construction. The word overlay describes how much of that frame or box edge the door covers when closed.

A full overlay door conceals nearly the entire face frame. From the front, you see almost nothing but door surfaces with narrow gaps between them. On a standard 1-1/2 inch face frame stile, a full overlay door covers about 1-1/4 inches, leaving roughly a 1/4-inch reveal. This produces the clean, continuous surface associated with modern cabinetry.

A half overlay door covers only a portion of the stile. On the same 1-1/2 inch stile, the door extends roughly 1/2 inch to 3/4 inch over the frame, leaving visible exposed wood. This style dominates traditional kitchens with face frame construction, where two doors meet at a shared middle stile and each claims roughly half the stile width.

For a concrete illustration, consider a full overlay concealed hinge with a 35mm cup diameter and a cup center positioned 10mm from the door edge. When mounted to a face frame cabinet, the door covers most of the stile and leaves only a thin, controlled reveal. A half overlay version of the same hinge positions the cup center around 6mm from the door edge, reducing the overlay distance by design. Understanding full overlay vs half overlay cabinet hinges starts with recognizing this difference is not about hinge brand or hinge type. It is about where the cup hole was drilled in the door.

The Bore-to-Edge Geometry: Why 3mm Changes Everything

If overlay type determines how much frame your door covers, what determines overlay type? One number: the distance from the center of the 35mm hinge cup boring to the edge of the door. This is bore-to-edge.

For European-style concealed hinges with the standard 35mm cup, bore-to-edge physically controls how far the door extends over the frame. A bore-to-edge of roughly 3mm produces full overlay. The cup sits close to the door edge, so the hinge arm pushes the door far across the frame when closed. A bore-to-edge of roughly 5mm to 6mm produces half overlay. The cup center sits further back from the edge, and the hinge does not push the door as far. A bore-to-edge of roughly 9mm produces partial overlay, also called 3/8-inch overlay.

The inverse relationship can be counterintuitive. A smaller bore-to-edge produces more overlay, not less. The hinge cup acts as a pivot point, and moving the pivot closer to the door edge increases the lateral displacement of the door relative to the cabinet frame as the hinge closes. The shorter the distance from the hinge knuckle to the door edge, the more the door swings across the frame plane.

The 35mm cup diameter is a European manufacturing standard from the 1950s that became global. Any 35mm hinge from any manufacturer fits any door bored to accept a 35mm cup, regardless of brand. The overlay type is a function of where you drill that 35mm hole relative to the door edge, not which brand you select.

This is why you cannot mount a full overlay hinge in a door bored for half overlay. The hinge fits the 35mm cup hole, but the bore-to-edge distance is wrong. A hinge designed for 3mm bore-to-edge, placed in a door drilled at 6mm, will not push the door far enough across the frame. The result is a wider gap along the hinge side and a door that sits too far toward the center of the opening. A half overlay hinge mounted in a full overlay door produces too much travel, potentially interfering with the adjacent door or face frame. When people ask about full overlay vs half overlay cabinet hinges, the real question they should be asking is about bore-to-edge compatibility.

How to Measure Your Cabinet Overlay in 3 Steps

If you are looking at a broken hinge and do not know what overlay type you need, three measurements give you the answer.

Step one: measure the overlay distance directly. Close the cabinet door. With a ruler, measure from the inside edge of the face frame opening to the outer edge of the door on the hinge side. If the door extends roughly 1-1/4 inches past the frame edge, you have full overlay. If it extends roughly 1/2 to 3/4 inch, you have half overlay. The difference between these two is large enough that a tape-measure reading lands you in the right category. A door covering less than 3/8 inch of frame is either partial overlay or inset.

Step two: determine your cabinet construction type. Look at the front of the cabinet. A wooden frame around the door opening, roughly 1-1/2 to 2 inches wide and 3/4 inch thick, means face frame construction, the standard in American cabinetry. If you see only the cabinet box edge with no additional frame, you have frameless construction. This matters because frameless cabinets nearly always use full overlay hinges, while face frame cabinets can use any overlay type.

Step three: measure the hinge cup and bore-to-edge. Remove one existing hinge from the door. Confirm the cup hole diameter is 35mm. Then measure from the center of the cup hole to the door edge. Around 3mm to 5mm means the door was set up for full overlay. Around 6mm to 7mm means half overlay. If the bore-to-edge does not match the overlay type from step one, you may have a mounting plate that adjusts overlay independently, which is less common but worth checking.

These three numbers let you order replacement hinges with certainty instead of guessing from how the door looks.

Face Frame vs Frameless: Choosing the Right Overlay

Choosing between full overlay vs half overlay cabinet hinges follows from how the cabinet was built.

Face frame cabinets have a wooden frame attached to the front of the cabinet box. This frame creates a rim around each opening and serves structural and aesthetic purposes: it stiffens the cabinet against racking, hides plywood edges, and provides the mounting surface for hinges. Overlay selection follows a simple logic. If a door occupies its own opening with a frame stile to itself, full overlay is standard because no adjacent door shares that stile. If two doors share a middle stile, each takes roughly half the stile width, and half overlay becomes necessary. Two full overlay hinges on a shared stile would demand more frame real estate than exists, causing doors to collide or bind.

Frameless cabinets dispense with the face frame. The cabinet box itself serves as the mounting surface. Without a frame rim, there is no stile to share between adjacent doors, so full overlay is the default for nearly every door. The doors cover the entire front edge of the cabinet box. The gaps between doors become the only visual breaks, narrower than what you see with face frame construction. Modern European kitchen design, with slab fronts and near-invisible seams, relies on this approach.

For anyone comparing full overlay vs half overlay cabinet hinges, the cabinet construction type is the critical starting point. Face frame cabinets need hinge plates that attach to the narrow face frame edge with short screws, typically around 15.5mm. Frameless cabinets require plates that mount directly to the inside wall of the cabinet box, needing longer screws and sometimes different plate geometry. Mixing these up leads to stripped screw holes and plates that will not seat flush.

A practical question that comes up: can full overlay hinges work on doors originally set up for half overlay? If you are building new doors, drill the cup at 3mm bore-to-edge instead of 6mm and switch to full overlay. But if replacing hinges on existing doors with existing bore holes, the bore-to-edge distance is fixed. You cannot relocate a 35mm hole. Match the existing bore-to-edge with the hinge specification. Stay with half overlay if that is what the doors were drilled for. The only way around it is replacing the doors.

Common Mistakes When Replacing Overlay Hinges

Three recurring errors appear in woodworking forums and hardware store return counters. Each traces back to bore-to-edge.

The first mistake is buying a hinge based on cup size alone. A 35mm hinge fits a 35mm hole, but overlay type and bore-to-edge are separate specifications. A 35mm full overlay hinge installed in a door bored at 6mm for half overlay produces a door that sits wrong. The gap is uneven, and adjusting the mounting plate cannot fix it. The geometric relationship between cup position and door travel is designed into the hinge arm. No amount of adjustment screw turning overcomes a 3mm or greater bore-to-edge mismatch.

The second mistake is confusing hinge overlay specification with door overlay measurement. A hinge sold as half overlay assumes the door was bored with corresponding bore-to-edge. If you take a door set up for full overlay and swap in half overlay hinges without re-drilling the cup holes, the door overlay does not become half. You get a door with full overlay geometry pushed by a half overlay mechanism, producing a gap that matches no standard reveal. The actual overlay results from bore-to-edge and mounting plate position together. Changing only the hinge without addressing cup position creates a mismatch no adjustment can resolve.

The third mistake occurs on face frame cabinets with shared stiles. When replacing hinges on a pair of doors that meet at the center, people sometimes install full overlay hinges on both, reasoning that more coverage looks cleaner. But full overlay hinges on a shared stile cause two doors to compete for the same frame real estate. On a 1-1/2 inch stile, each door needs roughly 1/2 to 3/4 inch of coverage. Two full overlay hinges covering 1-1/4 inches each on the same stile is physically impossible. The doors interfere, the hinges bind, and any soft-close damper cannot engage.

These mistakes share a common thread: treating overlay as a label rather than a measurement. Full and half describe the outcome, not the cause. The cause is bore-to-edge. Most confusion around full overlay vs half overlay cabinet hinges disappears once that relationship is clear.

A Real-World Full Overlay Hinge: The Ravinte B0CQYPT2X6 as a Reference Example

The Ravinte B0CQYPT2X6 hinge pack provides a concrete example of full overlay specifications in practice. It is a 10-pack of European-style concealed hinges with a 35mm cup diameter, 105-degree opening angle, and soft-close damper mechanism. The hinge body uses nickel-plated steel, and the mounting hole center sits roughly 10mm from the door edge. Screws are 15.5mm, four per hinge, with a mounting plate that provides about plus or minus 2mm of lateral gap adjustment.

The 105-degree opening angle exceeds the 90 degrees that entry-level hinges provide. Those extra 15 degrees mean the door swings wider, making it easier to reach items stored at the back of a base cabinet. The soft-close damper engages around 30 degrees from closed, at which point a small hydraulic mechanism takes over and draws the door shut without slamming. This prevents the gradual loosening of hinge screws and face frame damage that repeated slamming causes over years of use.

The gap adjustment uses an eccentric cam. Turning the screw shifts the door left or right by up to 2mm, enough to correct minor installation variance but nowhere near enough to compensate for the wrong overlay type. A half overlay hinge in a full overlay door needs roughly 12mm of lateral correction to achieve the proper reveal. No mounting plate provides adjustment in that range. This is why the distinction between full overlay vs half overlay cabinet hinges must be settled before purchase, not during installation.

The screws are 15.5mm, the standard length for face frame attachment. In frameless cabinets, where the plate mounts to the cabinet box wall instead of a frame edge, longer screws are typically needed. Screw length and thread are dictated by the mounting surface thickness, and they deserve as much attention as the overlay type.

A kitchen with 25 doors needs roughly 50 hinges. At approximately two to three dollars per hinge, the hardware budget for a full kitchen replacement falls in the low hundreds. That figure matters far less than compatibility. If the doors were drilled for full overlay with the cup center 3mm to 5mm from the edge, the hinges will work. If they were drilled for half overlay, they will not, regardless of price or brand.

The Ravinte hinges are useful as a reference because their specifications are typical of the category. Read the bore-to-edge requirement, confirm the cup diameter, check the opening angle and screw length, and you have a template for evaluating any full overlay hinge on the market.

What matters most in cabinet hinge selection is not the soft-close feature, not the opening angle, and not the nickel-plated finish. It is the bore-to-edge distance drilled into the door. A measurement of 3mm versus 6mm draws the line between full overlay and half overlay, and that millimetric decision controls everything downstream: how much frame shows, how wide the reveal is, whether two doors can share a stile without fighting for space.

When a cabinet door hangs crooked or a hinge needs replacement, the problem is rarely the hinge itself. Hinges are simple lever mechanisms that seldom fail. The more common problem is a hinge that was never matched to the door it was mounted on. If the overlay type matches the existing bore-to-edge, the door closes flush and the gaps remain even. If it does not, no adjustment fixes it. In cabinetry, the most important decision happens at the drill press, not at the checkout counter.