The most quotable work in building, until the slope gets involved.
Decks are priced per square metre and fences per lineal metre, which makes this the easiest builder work to ballpark before you call. One Auckland specialist even publishes a from-price. The catches are local: sloping sections drag retaining walls into the job, volcanic rock turns post holes into rock breaking, and fence lines shared with a neighbour come with Fencing Act homework.
Is this your stream?
New decks, deck replacement, boundary fences, pool fencing, gates and retaining walls on residential sections. These jobs quote cleanly once someone has walked the site.
A garden edge is landscaping; a wall holding back a slope or driveway is structural. Over 1.5 metres, or carrying a surcharge, it needs a building consent and belongs with a builder or specialist contractor, not the cheapest fence quote.
What it costs in Auckland
The published entry price
Auckland Deck & Fence publishes decks from $159 per square metre including GST, with a free onsite consultation. National guides run $350–$600/m² installed depending on timber and complexity, so treat the from-price as a starting spec, not the finished quote.
Fence pricing
Timber paling fences run about $140–$180 per lineal metre in ArchiPro's guide, $220–$270 for a 1.8m paling fence per Supreme Build, and $180–$320+ per TopBuilders. Kiwicraft's $2,500 project minimum and 10m morticed minimum shape small jobs.
Consent rules
Decks more than 1.5m above ground and retaining walls over 1.5m, or carrying a surcharge, need a building consent. On Auckland's sloping sections, assume you are near the line until measured.
Auckland providers, compared
Five operators that build decks, fences and retaining across the region, grouped by what they are best at. Hover a row for the detail that matters.
Common mistakes
Building a deck over 1.5 metres high without a consent: above that height a building consent is required, and the structural work is restricted building work needing an LBP. On sloping Auckland sections, decks cross that threshold fast.
Ignoring the retaining rules on a sloping section: retaining walls over 1.5 metres, or carrying a surcharge like a driveway or neighbouring structure, need a building consent. A cheap unconsented wall is an expensive problem at sale time.
Hitting volcanic rock mid-job: parts of Auckland sit on basalt flows, and post holes or foundation trenches that strike rock turn a weekend dig into rock breaking. Ask how the quote handles rock before signing, especially on the isthmus.
Assuming the neighbour pays half automatically: the Fencing Act 1978 lets you seek a contribution for an adequate boundary fence, but only if you follow the notice process. Build first and ask later and you can wear the whole cost.
Comparing per-m² prices without the spec: Auckland Deck & Fence's $159/m² incl GST entry price and the $350–$600/m² national guide band are different specifications. Timber species, fixings, substructure and height all sit inside the number.
Choosing hardwood for looks without pricing the upkeep: pine is the cheapest option but needs maintenance; kwila and other hardwoods cost more and still grey without oiling; composite costs the most up front and the least to maintain. Auckland's wet winters make the maintenance question real.
FAQ
How much does a deck cost in Auckland?
Auckland Deck & Fence publishes decks from $159/m² including GST as an entry price. NZ guides put professionally built pine decks around $350–$450/m² installed, hardwoods to $500–$600/m², and Refresh Renovations' guide runs softwood from $450+/m² and composite from $575+/m² including installation and GST. Specification and site slope explain the spread.
How much does a fence cost per metre?
NZ cost guides put a timber paling fence around $140–$180 per lineal metre (ArchiPro), roughly $220–$270 for a 1.8m paling fence (Supreme Build), and $180–$320+ for standard residential timber (TopBuilders). Height, slope, access and demolition of the old fence all move the price, and Auckland labour sits at the top of national bands.
Does my neighbour have to pay half the fence?
Under the Fencing Act 1978 you can seek a contribution from your neighbour toward an adequate boundary fence, but you need to follow the process: agree the fence beforehand or serve a fencing notice with the details. Build without notice and recovering costs is much harder. Anything beyond adequate is at your cost.
When does a deck or retaining wall need a building consent?
As a rule of thumb from building.govt.nz guidance: decks and platforms more than 1.5 metres above ground need a building consent, and retaining walls over 1.5 metres high, or any height if they support a surcharge like a driveway, need one too. On Auckland's sloping sections both thresholds come up often, so check before you build.
Pine, hardwood or composite: which decking should I pick?
Treated pine is the cheapest and most common, but needs regular maintenance. Hardwoods like kwila are tougher but still need oiling to avoid greying. Composite costs the most up front and is the closest to maintenance-free. In Auckland's wet, humid climate the maintenance question matters more than the brochure look.
Auckland Deck & Fence publishes decks from $159/m² incl GST; national guides run $350–$600/m² by spec, and timber fences $140–$320+ per lineal metre. Walk the fence line before trusting a per-metre quote, sort Fencing Act cost-sharing before you build, ask how the quote handles volcanic rock, and treat anything over 1.5m high, deck or retaining, as consent territory. Custom Decks designs the outdoor room, Kiwicraft states its minimums upfront, Auckland Landscaping handles the deck-retaining interface, and Reliable Building bundles decks with renovation work.