Custom Cabinets vs. Ready-to-Assemble Cabinets
Compare quality, cost, installation, and long-term value before making your decision — the gap between the two is not where most people assume it is.
The real difference is fit, not quality
A well-made ready-to-assemble (RTA) cabinet and a well-made custom cabinet can use the same plywood, the same hinges, and the same finish. The difference is that RTA comes in fixed increments — typically 3" — and custom comes in whatever size the wall actually is.
In a rectangular room with standard appliances, that difference costs you a filler panel or two. In a room with a chimney breast, a sloped ceiling, or a 41" gap, it decides whether the kitchen looks built-in or assembled.
Cost
RTA is cheaper per box, and the gap narrows once you account for what you do with the leftover space: fillers, end panels, and the labour to scribe them all cost money. On an awkward layout the two can end up close.
Assembly is the other variable. RTA arrives flat-packed. Building thirty cabinets is a full weekend for two people, and the squareness of each box depends on how carefully it's done.
Lead time
RTA is usually in stock. Custom is built to order, so it takes longer — but it arrives assembled, labelled by room, and ready to hang.
How to choose
Choose RTA if the layout is simple, the budget is tight, and you're comfortable assembling. Choose custom if the room is irregular, the ceiling is unusually high or low, or you want the run to finish cleanly wall to wall without filler strips doing the work.
Either way, look at the box construction before the door. That's what determines whether the kitchen is still square in ten years.
