How Much Does It Cost to Build a Deck in NZ? A Homeowner's Guide to Hiring a Deck Builder
- TopBuilders
- 6 hours ago
- 3 min read
A new deck is one of the most practical and enjoyable ways to improve your outdoor living space in New Zealand. Before hiring a deck builder, there are some essential things you should be aware of to make sure you get the best result for your home, budget and lifestyle.
Let’s walk through everything that matters, without the fluff, so you can start your project with confidence.
What is the average cost to build a deck in NZ?
The cost of building a deck in New Zealand can vary quite a bit depending on size, materials and the complexity of the build. On average, a standard pine deck might range between $350 to $500 per square metre, while hardwood or composite decks can cost significantly more. The total cost will also include labour, foundations, and any council requirements if consent is needed.
How much does a deck cost per square metre?
For basic pine decking, you're generally looking at around $350 to $450 per square metre fully installed. Premium hardwoods like kwila or garapa can push the cost up to $500 or even $600 per square metre when factoring in oiling, stainless fixings and extra care during install.
How much should you pay someone to build a deck?
Labour costs can make up around 30% to 50% of your total decking bill. Depending on the builder’s experience and the complexity of the job, expect to pay anywhere from $80 to $120 per hour. A small, simple deck may only take a few days, while more elaborate designs with stairs, balustrades or built-in seating will take longer and cost more.
How to calculate the cost of decking?
To get a rough estimate, multiply the size of the deck (in square metres) by the average cost per square metre. Add allowances for site prep, materials, fixings, and labour. If your site is sloped, has poor access, or requires consent, budget extra. A good deck builder can give you a clearer breakdown and help identify potential cost factors early on.
What time of year should you build a deck?
Spring and early summer are popular times to build a deck in NZ, giving you plenty of warm days to enjoy it straight away. Builders are often busier during this time, so you might face longer wait times. Autumn can be a great time to book a build, with slightly cooler weather but often more availability and quicker turnaround times. Winter shouldn't be ignored when it comes to building your deck as you can score a good deal and booking times with less competition for availability. Definitely wait until Summer before you start painting or staining your deck as the moisture buildup can cause bubbling.
How many years should decking last?
With the right materials and maintenance, a quality deck can last 15 to 30 years or more. Treated pine generally lasts around 15 to 20 years. Hardwood decking, if properly cared for, can last well over two decades. Composite materials may outlast both, though they usually come with a higher upfront cost.
Does a new deck increase home value?
A well-designed, professionally built deck can absolutely add value to your home. It boosts street appeal, enhances outdoor living, and adds functional entertaining space. In New Zealand’s lifestyle-driven property market, these features are often high on a buyer’s wish list, making a new deck a smart investment. Adding a deck to your home can increase the value added to your home by up to 50% of the cost to hire a builder to build your deck.
Do you need a permit for a deck in NZ?
Decks that are more than 1.5 metres above ground or that are connected to the house might require building consent. Even if a permit isn't needed, the structure must still comply with the NZ Building Code. Always check with your local council before you start. A professional deck builder can often assist with navigating the consent process if it's required.
How high should decking be off the ground?
Decks can sit directly on ground-level bearers or be elevated several metres, depending on the site and desired look. Anything higher than 1.5 metres may trigger additional safety and compliance requirements, such as handrails or engineered foundations. The height will also impact airflow, drainage and ongoing maintenance access underneath.
If You're Thinking About Hiring a Deck Builder
Hiring a deck builder is a smart move if you want a safe, well-finished deck that lasts for years and complies with NZ regulations. While DIY decking is tempting, a pro brings experience, tools and the knowledge to avoid costly mistakes. It's your outdoor space so make sure it's done right from the start – get in touch with our deck builders today.