Full Overlay, Partial Overlay, or Inset? The Cabinet Door Questions That Actually Matter

Someone hands you a door list and never says whether it's full overlay, partial overlay, or inset. You're about to guess, and guessing on overlay means guessing on every single door and drawer front size on that job, before you've even touched a sheet of ply. It happens more than it should, especially when a quote gets handed off between a designer and whoever's actually cutting the job, and nobody circles back to check the one detail that changes everything downstream.

It sounds like a small detail. It isn't. Overlay changes the size of every opening calculation, the hinges you order, and how forgiving your cuts are allowed to be. Get it wrong on door one and you're usually wrong on all forty, and you won't know it until they're hung and you're standing there looking at a kitchen full of doors that don't sit right.

What's the real difference between full overlay and partial overlay?

Full overlay doors cover almost the whole cabinet box. When they're shut, you barely see any frame between one door and the next. That's the clean, flat-front look on most new kitchens, and it's the standard for frameless, sheet-material cabinets built without a solid wood face frame. Most flat-pack and European-style kitchens default to this because it's simpler to build the box for and easier to size the doors against.

Partial overlay, sometimes called standard overlay, leaves a visible strip of face frame showing between doors and drawers. It's common on older cabinets built with a solid wood frame, where the new door only needs to cover part of the opening instead of the whole front. You'll see it a lot on kitchens getting new doors fitted to boxes that already exist, where the face frame is staying put and already painted. It's also common on traditional shaker-style builds where showing a bit of frame is part of the look, not a compromise.

What is an inset door, and why does it get treated differently?

An inset door sits inside the frame opening instead of in front of it. The door face ends up flush with the face frame, almost like a picture set into its own frame rather than hung over a wall. There's no overlay left to hide a bad cut, so a slightly wide door or a slightly out-of-square box shows up straight away, and there's nowhere for that error to hide behind.

That's why inset kitchens cost more and take longer, even with the exact same cabinet count as an overlay job. You're not just cutting doors, you're fitting each one individually, often with some hand planing on site to get the gap even all the way round. Clients see it on design shows and ask for it without knowing what it costs you in time, so it's worth walking them through that before you quote, not after you've started.

How much gap should there actually be between cabinet doors?

This is where a lot of new fitters get caught out. The gap isn't the same for every overlay style, and it's not something you eyeball once on door one and carry on with for the rest of the run without checking it again. A gap that looks fine on a single sample door can drift once you're twenty doors in and working fast.

• Full overlay: usually a small, even gap between doors so they don't rub when they swing open and shut.
• Partial overlay: wider gaps are normal since you're already showing a strip of frame — even spacing matters more here than hitting one exact number.
• Inset: the tightest tolerance of the three. You're working with a very thin, consistent reveal all the way round each door, and it has to stay that way on every door in the kitchen.
• Drawer banks: the gaps above, below, and between drawer fronts need to match the door gaps in that same run, or the mismatch jumps out at you from across the room.
• Tall units next to base units: keep the same gap logic running top to bottom, so the eye reads one continuous kitchen instead of two different jobs stacked on each other.

Whatever gap you settle on, it has to repeat on every door and drawer in that run. One tight gap next to one loose gap is far more noticeable than people expect, even to a client who couldn't tell you what overlay means if you asked them. People notice when something looks slightly off long before they can say why.

Can you mix overlay styles in the same kitchen?

Technically, yes. In practice, don't. Overlay style is tied to the hinge type and how the box itself is built, so switching between full overlay and inset partway through a kitchen usually means switching hinges and rethinking box depth too, which is a lot to redo midway through a job. It also makes the finished kitchen look like two different decisions stitched together, even if each half is done well on its own.

The one combination that actually works well: full overlay doors with partial overlay drawer fronts, on an older face-frame kitchen, where that's just how the original doors were built. Even then, decide it before you start the cutting list, not halfway through. Extensions catch people out the most here — a client wants one new cabinet added to an existing inset run, and the new box needs the same build and the same reveal as the original, not whatever's quickest to order. Measure the existing run properly before you promise a quick match.

Does overlay style change what hinges you order?

Completely. Full overlay and partial overlay both use standard concealed hinges, but with different overlay measurements stamped right on the hinge cup. Order the wrong overlay hinge and the door either won't close properly or sits proud of the cabinet front, and you won't always catch it until you're hanging the last one. A full-overlay hinge forced onto a partial-overlay door will leave a gap that looks wrong from the first glance.

Inset doors need a different hinge altogether, usually a semi-concealed or purpose-built inset hinge designed to sit flush. If you order standard overlay hinges for an inset job, nothing about that door will sit right, no matter how good the cut was. This mix-up happens most on bigger jobs where hardware gets ordered separately from the doors through a different supplier, so check the overlay on the hinge box against the door list before anything gets fitted. A five-minute check against the packaging saves you a return trip with the wrong box of hinges.

How does overlay change the way you measure for a cutting list?

Overlay doors get bigger than the opening. Inset doors get smaller than the opening. That's the whole rule, but it trips people up constantly when they're rushing through a list at the end of a long day, because the two openings can look almost identical on a quick site measure.

For an overlay door, you add the overlay amount to each side of the opening. For a split pair of doors on one wide opening, you also subtract a center gap before dividing the total width in two, or both doors end up too wide and won't close past each other without binding on each other every time someone uses them.

Inset doors work the opposite way. You subtract your reveal from the opening on every side instead of adding to it. Mix up that one add-or-subtract step, and you'll cut a door that's either too big to ever fit the opening, or so small it looks like an afterthought once it's hung. Double check the sign on your formula before you send a whole list to the saw.

If you're picking a style for the first time on your own job, here's the honest trade-off, side by side, without any of the marketing language that usually gets wrapped around it:

• Full overlay: most tolerant of small cutting errors, hinges are easy to source anywhere, biggest demand in modern kitchens — the right place to start if you're still building confidence.
• Partial overlay: needs a face frame already in place, and gaps have to be checked against that frame underneath — a good fit for traditional rebuilds and repaint jobs on older boxes.
• Inset: the least forgiving of the three, the most skill, the most time per door, and the price tag reflects all three — worth learning once you're confident, not on your first solo kitchen.

Pick your overlay style before you cut anything, write it down on the job sheet, and keep it the same across the whole kitchen. Changing your mind halfway through means remaking doors you've already edge banded, and nobody enjoys explaining that one to a client who's already seen a price. Most mistakes here don't come from not knowing the difference between the three styles. They come from everyone on the job assuming someone else already agreed on one, when nobody actually said it out loud.