Frameless vs Face Frame: How to Tell Which Cabinet You Have
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Almost every measurement on this site has two answers, and which one applies depends on a question most people have never asked: is the box framed or frameless. It takes about ten seconds to find out, and getting it wrong is why a tray that measured correctly still will not come out.
I build cabinets for a living outside the U.S. The two constructions are not a style choice. They are different ways of holding a door, and they put the material in different places — which is exactly the material you have to subtract.
Four ways to tell, fastest first
- Look at the opening with the door open. A face frame cabinet has a band of wood, usually 1 1/2 inches wide, running around the inside of the opening. It overlaps the edge of the side panels. A frameless cabinet has nothing there — you see the raw front edge of the box.
- Look at the cabinet side panel. In a framed cabinet the panel's front edge is hidden behind the frame. In a frameless one you can see it, and it is usually the same board thickness as the shelf.
- Look at the hinge. Frameless cabinets use concealed cup hinges screwed straight to the side panel, with the cup bored into the door. Framed cabinets use the same hinge on a mounting plate, or an exposed hinge.
- Look at the drawer. On a framed cabinet the drawer face covers the frame. On a frameless cabinet the face covers the box edge and nothing else.
The same cabinet, four different numbers
| Measurement | Face frame, 24 in | Frameless, 24 in |
|---|---|---|
| Box interior width | About 22 1/2 in | About 22 1/2 in |
| Clear opening width | About 21 in | About 22 1/2 in, less the open door and hinge |
| Widest drawer that clears | About 20 in | About 21 1/2 in, if the door opens far enough |
| What blocks the tray | The stile at the front, unless the slide is packed out | The hinge arm and the door edge |
Notice that the box interior is the same in both. That is why measuring the inside of the cabinet and nothing else is the mistake that runs through every retrofit problem on this site: the number you measured is identical, and the number that decides the outcome is not.
Why it changes everything downstream
On a framed cabinet, a slide mounted flat to the side panel sits behind the frame plane, so the tray rides behind the stiles and rubs on every stroke. The fix is a spacer block — usually 3/4 inch — between the panel and the slide. Skip it and you get a failure that looks like a sizing error but is not, which is covered in why pull-outs rub at the front only.
On a frameless cabinet there is no spacer and no rub at the frame, so people assume it is the easy case. It is easier in one way and harder in another: the door. A framed cabinet's door closes against the frame, outboard of the opening. A frameless door closes against the box edge, and when it opens the door itself and the hinge arm swing into the space the tray needs. A wide tray in a frameless cabinet depends on the door opening past it, which depends on the room, not the cabinet.
The moulding trap
Some frameless cabinets have a decorative frame applied to the front — a thin moulding that makes them look traditional. It is not structural, it does not carry the door, and it is usually much narrower than a real stile.
The way to tell the difference: a real face frame has the side panels set behind it, so the panel's front edge is hidden. An applied moulding sits on top of a box whose side panels you can still see the full front edge of. If you can see the edge of the panel at the very front, it is frameless whatever the trim looks like.
What you are likely to have
In the U.S., cabinets built before roughly the 1990s are almost always face frame; the construction dominated residential kitchens for decades and still does in most stock and semi-custom lines. Frameless cabinets arrived with European imports and flat-pack kitchens and are now common in newer renovations, especially anything sold as modern or slab-front.
Mixed kitchens exist and are not rare — a renovation that kept the sink run and replaced the rest can leave you with both in one room. Check each cabinet you plan to modify, not the kitchen as a whole.
A laser measure is useful here because on a framed cabinet the number you want is behind the frame, and the tape has nothing flat to register against. I use a Bosch Blaze laser measure for the box interior and a tape with 1/16 markings for the opening, and I write both down rather than trusting one.
Questions I get asked
Which is better built?
Neither. Face frame cabinets are stiffer because the frame acts as a brace across the front; frameless cabinets give more usable width for the same footprint and adjust more finely because the hinges are fully adjustable in three directions. The trade is structural rigidity against interior volume.
Can I add a face frame to a frameless cabinet?
You can add trim, and people do to match an older kitchen. It changes how the front looks, not how anything measures, unless you build the frame out far enough to actually narrow the opening — in which case your existing drawers may no longer clear.
Does this matter if I am only replacing shelves?
Only for width and for whether shelf pins sit in a drilled row. A fixed shelf in a framed cabinet is often part of what keeps the box square; in a frameless one it usually is not. Removing the wrong one makes the cabinet lean.
Next in this series: why a replacement drawer box rarely fits the first time — five measurements, one of which is almost never listed.