Composite vs Timber Decking: Which Is Right for Your Home?

  • Cost now vs cost over 15 years
  • Maintenance, lifespan, heat and looks
  • What to look for in the best composite decking in NZ
  • We bring samples of both to your quote

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composite vs wood decking

The short answer

Choose timber if you want the look and feel of real wood and a lower up-front cost, and you do not mind oiling or staining. Choose composite if you want the lowest-maintenance decking option and are happy to pay more at the start. Both are good decking options when the frame underneath is built properly.

Timber (pine / kwila)Composite
Indicative installed price$300 – $850 per m²$550 – $1,000 per m²
MaintenanceStain or oil every 1–2 yearsWash a couple of times a year
Look and feelReal wood grain, natural variationConsistent colour, manufactured look
SplintersPossible as it ages, especially pineNone
Heat in full sunWarmDark colours can get hot
Board lifespanPine 10–20 yrs maintained; kwila 25+ yrsOften 20–25 yr manufacturer warranties

Prices are indicative only. See the deck cost guide.

cost over time

Cost now vs cost over time

Composite costs more on day one. Timber costs more each year after that: oil or stain, a weekend of your time or a professional to do it, and eventually replacing worn boards. Over 10 to 15 years, the gap narrows. If you plan to stay in the house and value your weekends, composite often makes sense. If you might sell in a few years, timber's lower up-front cost usually wins.

How long does composite decking last?

Good capped composite boards commonly carry 20 to 25 year manufacturer warranties against fading and staining. The timber frame underneath should last decades if it is ventilated and built properly. Cheaper uncapped boards can fade and stain sooner, which is why the board matters.

maintenance free decking

Is composite really maintenance-free decking?

Nearly. Composite never needs oiling, sanding or staining. But it is not quite maintenance-free: dirt, leaves and mildew can build up, especially in shady spots, so it needs a wash with warm soapy water a couple of times a year. Compared with timber, it is the lowest maintenance decking option available. See our deck care guide.

best composite decking nz

Choosing the best composite decking in NZ

Composite brands sold in NZ include Ekodeck, Modwood and Futurewood, among others. Rather than one brand being best, compare these:

  • Capped or uncapped: a capped board has a protective outer shell that resists staining and fading. Most good boards are capped.
  • Warranty: look at what it covers (fading, staining, structural) and for how long.
  • Colour range: lighter colours stay cooler in sun.
  • Fixing system: hidden clips give a clean surface; check what the system needs for joist spacing.
  • Local availability: matching boards for a future extension is easier with a brand that is readily available in NZ.

Comparing two specific brands, like Modwood vs Ekodeck? Put their warranty documents and samples side by side and compare on the points above. We will talk you through options at the quote. More on our composite decking page, or see the best decking timbers in NZ if you are leaning timber.

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FAQs

Composite vs timber: common questions

Is composite decking better than timber?

Neither is better in every way. Composite needs far less maintenance and has no splinters; timber costs less up front and looks and feels like real wood.

How long does composite decking last?

Good capped composite boards often carry 20 to 25 year warranties, and the frame underneath should last decades if built and ventilated properly.

Does composite decking get hot?

Darker colours can get hot in full summer sun. Lighter colours stay noticeably cooler.

Which is cheaper over 15 years?

Timber is cheaper up front; composite saves on oiling and staining every year. Over 10 to 15 years the difference narrows a lot.

What composite decking brands are available in NZ?

Brands sold in NZ include Ekodeck, Modwood and Futurewood, among others. Compare cap, warranty, colours and fixing system rather than brand name alone.

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more deck guides

More deck guides

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