· Michael Blair
The three tiers are often presented as a quality ladder. They are really a flexibility ladder, and quality varies within each. What you are buying at the top is dimensional freedom.
Stock
Fixed sizes in set increments, available quickly and cheapest. Gaps are handled with filler panels, which is fine in a square room and awkward in an older Nashville house where nothing is square.
Quality ranges from poor to genuinely good, so judge the box and hardware rather than the category.
Semi-custom
Stock sizes with modifications — depth changes, height changes, finish and door style choices. This covers most real kitchens well and is where most mid-range work sits.
Lead times are longer than stock and considerably shorter than custom.
Custom
Built to your dimensions, in any configuration and material. It is the answer for period houses with unusual ceiling heights, awkward walls, and anywhere a run has to be exact.
It costs the most and takes the longest, and the maker matters more than in either other tier.
- Square modern room, tight budget: stock
- Most kitchens: semi-custom
- Older house, unusual dimensions, tall ceilings: custom
- Judge the box and hardware within any tier
Where Nashville houses push toward custom
Pre-war housing here often has tall ceilings, out-of-square walls and non-standard window heights. Stock cabinetry in those rooms produces large fillers and dead space above.
Semi-custom with modified heights handles a lot of it; genuinely irregular rooms need custom.