Custom vs Flat-Pack Kitchens: The Real Cost Difference

I get asked this almost every week, usually with a slightly nervous look: "Is custom going to cost me twice as much as a flat-pack kitchen?" It's a fair question, and the honest answer is that the price gap isn't as wide as people fear, but it isn't nothing either. What matters more is matching the kitchen to your home, your budget and how long you plan to live with it.

What you're actually comparing

A flat-pack kitchen is made from standard-sized cabinet boxes, packed flat, that get assembled and installed on site. You're choosing from a fixed menu of widths, usually in jumps of 150mm or 300mm, plus a range of doors and benchtops.

A custom kitchen is designed and built to your exact space. In our workshop we cut and assemble each cabinet to suit the room, the appliances and the way you actually cook, then install it ourselves.

The big difference isn't quality of intention, it's flexibility. Flat-pack works in fixed increments. Custom works to the millimetre.

Upfront price vs lifetime value

There's no getting around it: flat-pack is cheaper to buy. For a small, square Gisborne kitchen with standard appliances, a flat-pack range can be a genuinely sensible choice, and I'll tell people that honestly.

Custom usually sits higher upfront. As a rough guide, expect a custom kitchen to land somewhere meaningfully above an equivalent flat-pack, though the gap narrows fast once you start adding upgraded doors, soft-close hardware and a stone benchtop to a flat-pack job. By the time a flat-pack is "specced up," the two can be surprisingly close.

Where custom earns its keep is over time. A well-built cabinet that fits properly, made from good materials, doesn't sag, swell or need replacing in eight years. That's the lifetime-value side of the equation that the sticker price never shows.

The cheapest kitchen is rarely the one you buy twice.

Fitting an awkward space

This is where a lot of Gisborne homes complicate things. We've got older villas and bungalows with out-of-square walls, sloping floors and chimney breasts, alongside newer builds that are tidier but often have appliances and plumbing in fixed spots.

Flat-pack handles square, regular rooms well. Where it struggles is the leftover gaps. When your wall is 2,840mm long and the boxes only get you to 2,700mm, you end up with filler panels covering the difference, or a slightly cramped layout to make the modules fit.

Custom solves this by design. We can:

• Build a cabinet to the exact run, so no awkward gaps
• Work around old chimney breasts, hot-water cylinders and quirky corners
• Get usable bin and pantry pull-outs into spaces flat-pack would waste
• Match a benchtop run cleanly to an out-of-square wall

In a tricky room, that tailoring isn't a luxury, it's the difference between a kitchen that works and one you tolerate.

Materials, hardware and durability

This is the part buyers underestimate. A kitchen lives a hard life: steam, spills, the cupboard under the sink, doors opened thousands of times a year.

With flat-pack you're tied to whatever the range includes. It's often decent, but the carcass board can be thinner and the hinges and runners are usually entry-level. In our coastal Gisborne humidity, lower-grade board around the sink and dishwasher is the first thing to swell if water gets in.

With custom you choose the spec. We use solid carcass material, properly sealed edges, and quality hinges and drawer runners rated for serious daily use. It's less glamorous than the door colour you pick, but it's what decides whether the kitchen still feels tight in ten years. That's also why we back our work with a 5-year workmanship warranty — we're confident in what leaves the workshop.

So which one suits you?

Honestly, it comes down to your home and your plans.

Flat-pack tends to suit a rental, a tight budget, a holiday bach, or a simple square kitchen where standard sizes happen to fit well and you're comfortable assembling or project-managing it.

Custom tends to suit an awkward or older home, a forever house, anyone wanting specific storage or a standout look, or people who'd rather one local team design, build and install the lot without juggling trades.

There's no shame in either. I've talked people out of custom when a flat-pack would do the job for less, and I've seen flat-packs that fought an old villa the whole way and cost more in the end.

If you're weighing it up for your own place, get someone to look at the actual room before you decide. The walls usually settle the argument faster than any price list.