In short
- The dividing line is sizing freedom, not quality — good and bad examples exist in all three.
- Semi-custom covers a very wide range, and the term is used loosely.
- Stock cabinetry in a regular, rectangular room can be excellent value.
- Custom earns its cost where the room is irregular, the ceiling is tall, or the storage brief is unusual.
These three terms are used loosely, and some of the loosest use is by companies who would like "semi-custom" to sound like "custom". The distinction that actually matters is how much freedom you have over dimensions — not the quality of the construction, which varies enormously within each category.
| Stock | Semi-custom | Fully custom | |
|---|---|---|---|
| Sizing | Fixed increments, typically 75 mm or 150 mm | Fixed increments with some modifications — depth changes, reduced heights | Any dimension, drawn from the measured room |
| Filler panels | Expected and frequent | Fewer, but still used | Rarely needed; runs are sized to the wall |
| Finish choice | A defined palette | A wider palette, often with custom colour matching | Essentially open, subject to what the supplier can produce |
| Lead time | Days to a few weeks | Four to eight weeks typically | Six to ten weeks typically |
| Modification after ordering | Very limited | Limited, often at a premium | Possible up to production, priced as a change |
| Best suited to | Regular rectangular rooms, rentals, secondary suites, tight budgets | Standard rooms wanting more finish choice | Irregular rooms, tall ceilings, specific storage needs, integrated appliances |
Where stock genuinely wins
We will say this plainly, because a cabinetry company saying it is worth more than a cabinetry company not saying it: if your kitchen is a regular rectangle with square corners, a standard ceiling height, no bulkheads and no unusual storage requirement, well-chosen stock cabinetry can be very good value. The volume advantage is real, and modern stock lines are not what they were twenty years ago.
It is also the sensible answer for a basement suite, a rental unit, or a secondary kitchen where the cabinetry needs to work rather than to be the point. Spending custom money in those rooms is usually a misallocation.
Where the increments start costing you
The problem with fixed increments is not aesthetic, it is volumetric. On a 2,400-millimetre wall, stock cabinetry in 150-millimetre steps might give you 2,250 millimetres of cabinets and 150 millimetres of filler. That is a full base cabinet's worth of storage converted into a decorative panel.
Repeat that across three walls and the loss becomes substantial — and it is loss you paid for, in a room where storage was probably the reason for the project.
The four situations that usually decide it
- The room is not square. Almost every house in Toronto built before 1980 falls into this. Custom is designed with scribe allowances; stock is not.
- The ceiling is above about 2,700 millimetres. Stock uppers leave a gap that either becomes a dust shelf or gets bulkheaded at extra cost.
- You have already bought the appliances. Integrated fridges and panel-ready dishwashers need openings built to a specification sheet, not to the nearest increment.
- Your storage requirement is specific. A serious baker, a household that buys in bulk, a kosher kitchen, an accessible work surface. These are cheap to design in and impossible to retrofit.
Craft Mill Works
Design and project coordination
Written and reviewed by the Craft Mill Works design team, based on the cabinetry and millwork projects we coordinate across North York and the Greater Toronto Area. [Add a named author and a short professional biography before launch — see README § Adding articles.]
Last reviewed . We review this page when material or supplier conditions change, and update the date only when the content actually changes.