Quick answer
Custom kitchens are built to fit your exact space with wider finish and layout options but cost more and take longer; flat-pack is cheaper and faster yet limited in sizing and durability. For most single Auckland kitchens, flat-pack still wins on the raw sticker price, and trade-built supply-and-install (as MTN Kitchens does) is what puts a custom fit back within reach of retail custom.
Key points
- The real choice is not custom vs flat-pack. It is what you are paying for and where that money lands.
- Flat-pack wins on the sticker for a square room you assemble yourself. It costs you in gaps, coordination and risk on anything out of square.
- Retail custom buys the fit and finish, but part of the price is the shop, not the kitchen, and you never see it itemised.
- Trade-built direct is the middle ground most people are actually after: custom fit and durable finishes at trade pricing, supply and install on one contract.
- Spend where your hands and eyes land every day. Trim where they do not. The dearest kitchen is the one that does not fit.
Flat-pack or custom, honestly.
A new kitchen comes down to two paths most people picture: the flat-pack box you assemble on the garage floor, and a kitchen built to your room and fitted by trades. What nobody tells you is how much the two have crept together. Plenty of kitchens sold as custom are built on the same imported carcasses as flat-pack, with a showroom and a salesperson's commission stacked on top. So the real question is not custom or flat-pack. It is what you are actually paying for, where that money lands, and which path gives you a kitchen that fits an Auckland room and still looks right in ten years.
This is for the homeowner doing one kitchen, where every grand and every week with no stove counts. We build volume kitchens for developers and builders out of our East Tamaki workshop, more than 2,000 of them over 23-plus years, so we will tell you straight where each option earns its money and where it quietly costs you. No showroom, no sales script, just the version we would give a mate who rang us on a Sunday.
What flat-pack actually buys you
Flat-pack is cheap, and it is cheap for honest reasons. You buy standard cabinet modules in fixed widths, cart them home, and screw them together. For a straight galley, a sleepout, or a quick rental refresh on a tight budget, nothing beats it on raw dollars. The carcass is usually melteca on MDF, the same board sitting inside plenty of trade kitchens. The box itself is rarely the problem.
The trouble is everything around the box. Fixed sizes do not love an Auckland villa with walls that are out of square, a chimney breast that juts, or a 1960s isthmus bungalow where nothing is plumb. You end up with filler panels and gaps you stare at every morning. You also carry the measuring risk, the benchtop template, and the install as three separate jobs you have to line up yourself. Order the wrong width or chip a panel and that is your problem to sort, usually with the room half gutted and the dishes living in the laundry.
Be honest with yourself about the labour, too. Flat-pack saves money by moving the assembly and the coordination onto you. If you are handy, have a weekend free, and the room is square, that is a real saving. If you are paying a builder by the hour to assemble cabinets that arrive in a hundred pieces, the gap to a proper trade kitchen narrows fast, and you have still carried all the risk yourself. Builders weighing the same trade-off can read our take on flat-pack vs pre-assembled cabinets for where the labour maths actually flips.
Where custom earns its keep
Custom means the kitchen is made to the room instead of the room being bent around standard boxes. Cabinets fill the run wall to wall, the benchtop is templated off your actual walls once the cabinetry is in, and the spec holds from one end to the other. That is the gap between a kitchen that reads as built-in and one that reads as assembled. It is also where a scullery, a proper rangehood run, or an awkward corner gets solved properly rather than fudged with a filler. If you are working with a tight footprint, the same thinking is what makes a small kitchen feel bigger.
Custom is the only path to the finishes that decide how a kitchen wears. Matte 2-pac lacquer you can touch up after a few years of kids. Engineered or natural stone where it earns its place instead of laminate everywhere. Hinges and runners specified to take a beating, soft-close that still closes soft in year eight. None of that comes off a flat-pack shelf, and the way the details reduce callbacks is exactly where a properly specified kitchen pulls ahead over the years.
The catch with retail custom is simple. You pay for real joinery and then again for a showroom lease on a main road, a designer, and a sales commission, and the second part never shows up itemised on the quote. The doors and the stone might be identical to a trade kitchen. You are funding the building the salesperson sits in.
The third option nobody mentions: trade-built direct
Flat-pack wins on the sticker, full stop. Retail custom sits at the top end, because the overheads get paid before a sheet of board gets cut. The option most homeowners never hear about sits between the two: trade-built. A workshop that makes kitchens for builders and developers at wholesale pricing and sells direct, with no retail layer in the middle.
That is the lane we sit in. We run our own workshop in East Tamaki and supply homeowners the same trade-priced, properly built kitchens we supply to developers, including head-contractor kitchen work for Spencer Henshaw. You get the custom fit and the durable finishes without the showroom markup, and that markup is usually the exact thing that puts custom out of reach against flat-pack. When a developer is buying ten kitchens a week off you, the per-kitchen price has nowhere to hide. A homeowner walking in off the brief gets the benefit of that same costing discipline. The gap between those two worlds is laid out plainly in trade vs retail kitchens.
It is not magic and it is not the cheapest line on every job. Flat-pack will still beat us on a square sleepout where you do the labour. But against retail custom, trade-built closes most of the gap, and against flat-pack on anything with an odd wall or a finish you actually care about, it is usually the call that costs less over the life of the kitchen.
The cost conversation, no spin
We will not throw invented dollar figures at you, because the number that matters is the one off your drawings. What we can do is name the levers that move it, so you know what you are actually choosing when a quote goes up or down. All of these are plus GST in the trade. If you want the full anatomy of a quote, where the money goes in a kitchen quote breaks it down line by line.
| Flat-pack | Retail custom | Trade-built direct | |
|---|---|---|---|
| Fit to room | Standard sizes, fillers | Made to measure | Made to measure |
| Finishes | Limited stock range | Full range | Full range |
| Who carries risk | You | Split or supplier | One supplier |
| Where markup goes | Almost none | Showroom + commission | No retail layer |
| Best for | Square room, DIY | Premium, hands-off | Custom fit, trade price |
What pushes the price up
- Benchtop material: laminate is the floor, engineered stone steps up, natural stone and the thicker waterfall edges sit at the top. The benchtop is often the single biggest mover on a residential job.
- Door finish: melteca and melamine are the value end, timber and 2-pac lacquer cost more to make and more to finish, and a full gloss 2-pac is dearer again because the prep is unforgiving.
- Run length and cabinet count: more linear metres, more boxes, more doors, more hardware. A scullery doubles a lot of that.
- Hardware spec: soft-close everywhere, internal drawers, corner solutions, bins and integrated organisers all add up quietly.
- Appliance integration: an integrated dishwasher or fridge needs panels and tighter tolerances than a freestanding setup.
- Site difficulty: a third-floor terraced unit with no lift, or a villa where everything needs scribing to out-of-square walls, takes more install time.
Where you can genuinely save without regret
Spend the money where your hands and eyes land every day, and trim where they do not. Engineered stone on the bench you lean on, melteca inside the cabinets nobody sees. A good drawer stack by the cooktop, plain hinged doors in the pantry. Splurge on the rangehood run and the soft-close on the bin drawer; save on the decorative end panel that faces a wall. The fastest way to blow a budget is to make everything special. The fastest way to a kitchen that feels cheap is to make nothing special. There is more on this trade-off in renovating a kitchen without blowing the budget.
Lead time, fit, and who carries the risk
A kitchen is the one renovation that takes the whole house offline. Flat-pack feels fast because you can buy it on Saturday, but the clock keeps running while you chase a benchtop templater and an installer around their own jobs, and the stone won't get templated until the cabinets are in, and the cabinets won't go in until you've assembled them. Three separate diaries, none of them yours.
Custom takes longer to build, then lands as one coordinated hit. With supply and install on one contract and one invoice, the measure, the manufacture, the delivery and the fit all sit with the people who built the thing. A single kitchen usually goes in over 5 to 7 days, end to end, once it's on site, and those days run back to back instead of scattered across three firms' diaries. Our installers hold Site Safe tickets, which is what lets them work alongside the other trades while the house is still a live building site. For the full sequence, see what to expect from kitchen order to install.
That single point of accountability is the quiet value. When the cabinetmaker, the templater and the installer are the same outfit, there is nobody to blame and nobody to chase. If a panel needs adjusting on the day, it gets adjusted. With three separate suppliers, a two-millimetre disagreement becomes a fortnight of phone calls while you wash dishes in the bath.
A worked example: a Ponsonby villa reno
Take a real-shaped job. A 1910s Ponsonby villa, owners knocking the old kitchen and a small laundry into one open room with a scullery off the back. Cross-lease title, so the footprint stays inside the existing walls and there is no subdivision or resource consent drama, but the walls are the originals: out of square by a good 15 to 20mm across the main run, and the floor falls away toward the back door. Classic isthmus villa.
Flat-pack here is a trap. The standard boxes will sit fine, but the moment you template a benchtop against those walls you get a visible wedge, and the end cabinet either jams or leaves a finger-width gap you cannot unsee. The owners priced it and the saving evaporated once they added a builder to assemble and scribe, plus a separate stone supplier and installer they had to project-manage between school runs.
The trade-built sequence runs cleaner. We measure on site after the demolition is back to framing and GIB, so we are working off the real room, not the plans. Cabinets are built in East Tamaki to suit the out-of-square run, with scribe allowance on the end panels. They install over a couple of days, then the benchtop is templated off the cabinets actually in place, not off a drawing. Engineered stone on the island and main bench, melteca scullery to keep the budget honest where it is hidden, 2-pac on the doors that face the living room. Soft-close throughout, integrated dishwasher behind a panel door, rangehood ducted properly through the ceiling rather than recirculating. Whole thing on site inside the 5 to 7 day window. One contract, one invoice, one number on the door if something needs a tweak.
Three trades become one contract.
The decision that saved the most money was not a material. It was putting the scullery in melteca and the visible faces in 2-pac, instead of running the expensive finish everywhere out of habit. That is the kind of call you only get when the people quoting actually build kitchens, rather than read a price list. The full range of options is covered in kitchen cabinet finishes explained.
What goes wrong, and how to dodge it
Most kitchen regrets are not about the cabinets at all. They are about the bits around them that nobody pinned down early. Here is what we see go sideways most often.
Measuring off the plans instead of the room. Plans lie, especially on old houses. A kitchen drawn off a council drawing and ordered before demolition almost always fights the real walls. The fix is to measure after the room is stripped, which flat-pack makes hard because you have usually already bought the boxes. There is a whole piece on site measure vs plan measure if you want to understand why this one matters so much.
Splashback and rangehood as an afterthought. People decide on the rangehood late, find the ducting clashes with a joist or the upstairs floor, and end up recirculating into the room instead of venting out. Sort the rangehood run and the splashback height before the cabinets are made, not after. The same goes for power points and the GIB behind a tiled splashback.
Three suppliers, no boss. Cabinets from one place, stone from another, install from a third, and a homeowner trying to choreograph them around their own jobs. The day the stone templater turns up and the cabinets are 5mm out, everyone points at someone else. Apartment and terraced-unit access, unbooked. A unit-title body corporate wants notice, and a stairwell with no lift decides how the cabinets get up there, so the delivery day gets sorted before anything is built. Ordering before consent. Move plumbing or structure and you are into consent territory, so the paperwork gets settled before the kitchen is ordered. Buying early is how good cabinets end up stored in a garage for three months.
The dear kitchen is hardly ever the one with the biggest number up front. It is the one that does not fit, the doors that look tired in five years, or the day you have to get a chippie back to fix what the measure got wrong.
What to ask before you commit
Whoever you are talking to, flat-pack retailer or custom joiner or a trade workshop, run these questions before you sign anything. The answers tell you fast who is selling you a kitchen and who is selling you a showroom. They pair well with knowing how to read a kitchen quote and spot the hidden costs.
- Is this supply only, or supply and install on one contract and one invoice? If they split, who carries the measuring risk?
- Who measures, and do they measure the room or the plans? Do they re-measure after demolition?
- Is the benchtop templated off the installed cabinets, or off a drawing?
- What is the carcass made of, and what are the actual hinge and runner brands? Soft-close standard or extra?
- What door finish am I getting: melamine, melteca, timber, or 2-pac, and gloss or matte?
- Are you Site Safe qualified, and who is responsible if a run is out on install day?
- What is the realistic lead time from sign-off to install, and how many days on site?
- Is the quote plus GST, and what is specifically excluded: appliances, plumbing, electrical, splashback, making good?
- If something needs adjusting on the day, who does it and is it a variation?
A quick way to pick
Match the path to your situation, not to the marketing:
- Tight budget, square layout, happy to project-manage and assemble: flat-pack is a fair call.
- Older villa or bungalow with out-of-square walls: custom fit pays for itself in the gaps you dodge.
- You want stone benchtops or 2-pac doors that last: that is custom, not flat-pack.
- You would rather not juggle three trades or own the measuring risk: supply and install on one contract.
- You like custom but choke on retail prices: trade-built direct closes most of the gap.
Frequently asked questions
Is the carcass in a trade kitchen really the same board as flat-pack?
Often the carcass material is similar, as melteca on MDF is common across both because it is a good board for the job. The difference is rarely the box itself: it is whether it is built to fit your actual room, what hinges and runners hang off it, the door finish, and whether anyone is accountable for the fit.
How long does a single kitchen actually take?
On site, a single kitchen with supply and install usually goes in over 5 to 7 days, including the benchtop once it is templated off the installed cabinets. Flat-pack can be in your driveway the same day, but the real timeline is dictated by you assembling it and lining up a separate templater and installer, which often runs longer once you add it all up.
Do I need a building consent for a kitchen?
Swapping a kitchen in the same footprint, like-for-like, generally does not need a consent. The moment you move structural walls or relocate plumbing or drainage you can be into consent territory and a Code Compliance Certificate, with Licensed Building Practitioner sign-off on the structural work, so it is worth a quick call to your council or builder before you order anything.
Can you really beat a custom showroom on price?
On a like-for-like spec, usually yes, because there is no retail layer riding on top of the joinery. We will not always beat flat-pack on a square, do-it-yourself sleepout, but against retail custom for the same doors, stone and hardware, the markup we do not charge is exactly the part that usually puts custom out of reach.
What if my measurements are rough?
Rough is fine to start. Send a sketch with approximate dimensions, photos of the room, or the architect's drawings, and we will give you a clear indicative quote. The proper measure happens on site before manufacture, ideally after demolition so we are working off the real walls.
The short version, and what to do next
Custom versus flat-pack really comes down to where you would rather spend: money, time, or risk. Flat-pack saves the dollars and spends your weekends and your patience with gaps. Retail custom buys the fit and finish at a premium you mostly cannot see on the quote. Trade-built supply and install is the middle ground most people are actually after: the custom fit and the durable finishes, measured and fitted by the same workshop that built them, at trade pricing.
If you are weighing it up, send us your rough dimensions, your drawings, or just a description of the room and what you want from it. We will come back with a clear quote, no showroom games, confirmed within 24 hours, so you can compare like for like instead of guessing. Twenty-three-plus years, more than 2,000 kitchens, built and installed out of our own East Tamaki workshop. Tell us what you are working with and we will tell you, straight, which path actually suits it.