Cost of Building a Deck

cost of building a deck

Free Deck Quotes From $160m/2
Where are you located? → Articles  →  Cost & Pricing Guides  → Cost of Building a Deck

The average price of building a standard-sized deck sits at around $187.50/m2. However, because of certain factors such as the size of the deck and the material used, job quotes may range from approximately $160/m2 to about $220/m2.

Where do these prices come from?

All prices stated in this article are based on FY 2016 pricing data compiled by The figures resulted from a comprehensive analysis of quotes submitted by Decking Experts on the site from July 2015 to July 2016.

Cost of common decking jobs

Decking Task Typical Quoted Prices
Garden decking $8,000
Decking design $3,000
Decking with a slope $7,500
Deck repair and renovation $1,800
Timber decking $3,500

Deck construction prices from real customers

Tony from Vic
He had a 30m2 mahogany deck built at his residential property in Greensborough.
TOTAL COST: $9,000
Sam from Vic
He wanted a 75m2 merbau deck built (with 90mm boards) at his home in Balwyn North.
TOTAL COST: $11,500
Steven from Qld
He hired a carpenter to build a timber deck measuring 18m2.
TOTAL COST: $5,000

What affects the cost of deck construction

Aside from size, several other factors are considered in determining the cost of a decking job. Some of these are the following:


This constitutes a big chunk of a deck construction’s overall cost. There are different decking materials to choose from including:

  • Timber
  • Composite
  • Synthetic
  • Treated pine

They vary in prices with composite being the most expensive. They also differ in other aspects including maintenance requirements, lifespan, and aesthetic quality.

Specifics of the deck

How your deck is designed plays a huge role in the price too. Expect to pay more if the deck you want is of a nonstandard shape (i.e. shapes other than a typical quadrilateral); if it includes levels and stairs; if it has balustrades, benches, and/or roofing; and if it has lighting.

Site condition

You also need to take into consideration how easy it will be for builders to complete the job. It will take them a long time if there are tanks, gas lines, and trees that they need to avoid. Do they need to use a scaffolding or a ladder? Does your backyard have difficult access?


Waterproofing and sealing are necessary if you want to lengthen the lifespan of your deck. However, they also mean additional costs.

cost of deck construction

Click the infographic image to expand.

Deck Building Rates Across Australia

Building a deck in Western Australia costs $170/m2 on average. This price is followed by the average price of deck construction in Queensland, which is approximately $185/m2.

Deck builders in Victoria charge an average price of about $190/m2 for their services. This is only a bit lower than the average rate of decking companies in New South Wales, which is around $200/m2.

Deck construction involves huge spending, but with the help of a reliable builder, you can definitely get your money’s worth. If you need any help with your job, feel free to view’s wide array of local deck builders.


Pricing information correct as at August 2016.

We get jobs done. Get quotes from over 130,000 local businesses across Australia on



Looking for professional decking experts in your area? Check out’s highest-rated decking experts in these major cities:

Sydney • Melbourne • Brisbane • Perth • Adelaide • Hobart • Canberra • Darwin