Deck Bros charges $375–$450 per m² for Kwila and Fijian Mahogany decking, depending on the size of your deck. Larger decks attract a lower rate. Subframe, consent and extras like bench seats are quoted separately during your free on-site visit.
It's the first question everyone asks — and fair enough. A deck is a real investment and nobody wants to be blindsided by the final number.
So here's exactly what Deck Bros charges in 2026, with no vague ranges or asterisks. Real numbers, straight up.
Deck Bros Pricing — Kwila & Fijian Mahogany
Our decking rates vary by size — bigger decks cost less per square metre because of efficiencies in material ordering and setup. Here's the breakdown:
| Deck Size | Rate per m² |
|---|---|
| Up to 10m² | $450/m² |
| 10m² – 30m² | $420/m² |
| 30m² – 50m² | $375/m² |
These rates cover the hardwood decking boards and installation. Subframe (the structural framing underneath), building consent, balustrades, stairs and extras like bench seating are quoted separately — because every site is different and we'd rather give you an accurate number than a guess.
What Does That Look Like in Real Money?
To make those numbers real, here's what a Kwila or Fijian Mahogany deck costs at different sizes — decking only, before subframe and extras:
| Deck Size | Decking Cost (approx.) |
|---|---|
| Small (10m²) | $4,500 |
| Medium (25m²) | $10,500 |
| Large (40m²) | $15,000 |
Bench Seats & Picture Framing
A lot of our Hamilton clients add built-in bench seating and picture framing to their decks. Here's what those cost:
| Extra | Rate |
|---|---|
| Bench Seats | $450 per metre |
| Picture Frame Border | $10 per lineal metre |
Picture framing gives your deck a clean, finished border look — it's a relatively small addition that makes a big visual difference.
What Else Goes Into the Total Cost?
The decking rate above is just the boards and installation. Here are the other components that make up your final quote:
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Subframe
The structural framing that sits under your boards. The cost varies significantly depending on your site — a flat ground-level deck is much simpler than an elevated deck on a sloped section. We quote this separately after seeing your site.
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Building consent
Required if your deck is more than 1.5m above ground at any point. Hamilton City Council fees are typically $800–$1,500 for a standard residential deck. We handle the process for you.
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Stairs and balustrades
Stairs and balustrades (required for decks above 1m) are quoted per job. The complexity of your design and the number of stairs significantly affect the cost.
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Sloped sections
Hamilton has plenty of sloped sections — Flagstaff, Rototuna, Peacocke. A sloped site means a taller, more complex subframe which adds to the overall cost. We'll assess this at your on-site quote.
Why Choose Hardwood Over Pine?
Hardwood pays for itself over time.
Pine decks are cheaper upfront but typically need significant maintenance or replacement at the 10–15 year mark. A well-maintained Kwila or Fijian Mahogany deck can last 25–40 years in New Zealand conditions. When you spread the cost over the life of the deck, hardwood often works out cheaper — and it looks significantly better the whole time.
Frequently Asked Questions
Does Deck Bros supply and install, or just install?
We handle everything — supply, delivery and installation. You don't need to source timber or organise anything separately. We manage the whole job from start to finish.
How long does it take to build a deck?
A standard 25m² deck typically takes 2–4 days to build once materials are on site. Larger or more complex decks take longer. We'll give you a clear timeline as part of your quote.
Do you work across the wider Waikato?
Yes. Deck Bros is based in Pukete, Hamilton, and we build decks across the Waikato region including Cambridge, Te Awamutu, Ngāruawāhia and surrounding areas. On-site quotes are free throughout the region.
Can I get an instant estimate online?
Yes — head to deckbros.nz and use our instant quote tool. It gives you a ballpark estimate in 60 seconds based on your timber choice, deck size and a few other details. A free on-site quote gives you the exact number.
Get Your Free Instant Estimate
Takes 60 seconds online — or call Nathan to arrange a free on-site quote. No obligation, no pressure.
Get a Free Quote Or call Nathan directly — 027 597 1679