Cabinet painting is the job that breaks a wall-based estimate most completely. The square footage is small, the hours are large, and the ratio between them is nothing like a room. Pricing cabinets with a wall production rate produces a number so low that winning the job is a loss, which is why cabinet work is estimated by counting doors, drawers and boxes and by allowing prep hours that would look absurd anywhere else in the house.
Count the pieces, because that is the unit
Doors, drawer fronts, and the face frames and boxes that stay in place. Each door is handled several times: removed, labelled, cleaned, sanded, filled where needed, primed, and given its finish coats on both faces, then rehung and adjusted. A kitchen with thirty doors and twelve drawer fronts is forty-two pieces travelling through that sequence, and the sequence is the estimate.
Preparation is most of the job
Kitchen cabinets carry cooking grease, which has to be removed properly before anything adheres, and existing factory finishes usually need deglossing or a bonding primer. Nothing about that scales with area. On most cabinet jobs the cleaning, sanding and masking exceed the finishing time, and an estimate that treats prep as a small allowance is not an estimate of cabinet work at all.
Where you finish them changes the hours
Doors sprayed off site or in a garage set up as a finishing area behave completely differently from doors brushed in place. Spraying is faster per piece and slower to set up, and it moves hours from application into masking, transport and drying management. Whichever you do, estimate the setup and the handling explicitly rather than assuming a rate covers it.
Then price it the same way as everything else
Total the hours across removal, cleaning, sanding, priming, coats, drying management and rehanging, and multiply by your fully loaded labour cost an hour. For comparison, the room worksheet's example, 448 square feet at two coats and 180 square feet an hour a coat with two prep hours, is 6.98 hours and $265.16 at $38 an hour. A cabinet kitchen with far less surface will routinely take several times those hours, which is the whole point.
Questions people ask about labor cost to paint kitchen cabinets
Can I price cabinets per square foot?
Not usefully. The surface is small and the handling is large, so a square foot rate that works on walls underprices cabinets badly. Count pieces and estimate the sequence each one goes through.
How long does the kitchen have to be out of use?
Longer than customers expect, because cabinet finishes need real cure time before doors are used and slammed. Setting that expectation on the estimate prevents the most common complaint on cabinet work.
Is spraying always better?
It is faster per piece and gives a flatter finish, but it needs a space, masking and drying management. On a small kitchen with a difficult layout, brushing and rolling in place can be the cheaper answer once setup is counted.
What about older kitchens?
Housing built before 1978 raises the lead question, and anyone paid to disturb paint in it must be certified in lead-safe work practices. That is a rule to check against your own certification rather than a line to guess at in an estimate.