How Much Does Composite Decking Cost? [2024]

Composite decking, or composite wood decking, has gained a loyal following of late, rivalling solid timber as the material of choice for many homeowners. The combination of timber fibres and recycled plastics (or uPVC) make for the perfect blend of rigidity, durability and a low maintenance surface.

But how much does composite decking cost? In this page we’ve collected everything you need to know about composite decking, why you might want to consider composite wood decking over solid timber, and how much composite decking costs.

What is composite decking?

Composite decking is one of the most popular alternative decking materials to solid timber, and simulates the colour and grain of real woods very convincingly. However, unlike solid wood decking, it’s smooth to the touch, and requires less ongoing maintenance.

Composite decking is typically made from timber pulp and recycled plastic. The wood pulp is generally used to make the core of composite decking boards, while recycled plastics are used on the outside of each board.

Capped composite decking adds an additional layer to the boards during manufacturing, which makes them more fade and stain resistant. Uncapped composite decking tends to be cheaper.

Composite decking vs timber decking

So why should you install composite decking, and potential pay more for it than you would natural timber? Composite decking has some significant advantages over use solid timber for decking, here are the main ones:

• Low-maintenance: All timber decks need regular sanding and refinishing, while composite decking only require the occasional pressure clean.

• Looks: Composite decking can look just as good as timber decking, and won’t fade as much as timber decking will.

• Durability: Despite being made of plastic and pulped timber, composite decks are very strong, though typically not as durable as hardwoods like Tallowwood or Ironbark.

• Scratch, stain, and mould resistant: While composite decks can scratch, stain, and rot, they are very resistant to them thanks to their factory manufacturing process.

• Waterproof and fireproof: Most composite decks are completely waterproof, and excellent near pools or gardens. There are also many fireproof composite decking boards available, which can be used in bushfire prone areas.

• Manufactured from recycled materials: Composite decking doesn’t typically require and logging or virgin plastics to manufacture.

Of course, there are some downsides of composite decking. For instance, due to the inherent nature of some composite materials they can be liable to staining from fatty products. Composite decks can also get quite hot underfoot compared to natural timber.

What types of composite decking are available?

Popular brands of composite decking include FutureWood, Trex, DuraLife, Ekodeck and ModWood. Each company can a distinct range of products and offers a 10-25 year warranty. Not all decking materials will be suitable for every home, but a decking specialist will be able to give you personalised advice.

Here are some of the main differences between composite decking products:

• Capping: Capped composite decking has another layer added in manufacturing. It makes the boards more stain resistant and durable, but more expensive.

• Fastening: Composite boards can be drilled and screwed like timber boards, but more expensive products typically come with hidden fasteners.

• Finish: More expensive composite decking will have more intricate grain and colour patterns, that will be more random and match the look of real timber closer.

• Scalloping: Some composite decking has scalloped or unfinished bottoms, which can reduce the price - it does also reduce durability though.

• Waterproofing/Fireproofing: Fully waterproof and fireproof composite decking can be more expensive than basic products, depending on the brand.

 

How much does composite decking cost?

Composite decking prices are in the region of $100 to $350+ per square metre, depending on the brand (Australian dollars).

As with any decking project, there are several factors that will impact the total cost of your project. These include:

Materials: Composite wood decking prices tend to be higher than hardwood timber, but this is changing as it becomes more widely adopted. More expensive brands will have finer details resembling timber grain and a broader colour range. Also expect to pay more for hidden fasteners – which offer a seamless appearance for the surface of your deck.

Size: The area of the space you intend to deck will offer you a good guide to the overall cost of your project. Composite decking installers will typically give you a total price installed, with a breakdown of all the individual costs, including labour.

Permits and permissions: If permits are required where you live, these will attract a fee, typically payable to your local council.

Design: The style of your deck, especially if it’s a substantial structure, will require approval by an accredited professional. This is to ensure their long term safety and structural integrity. There are guidelines for the construction of decks, including minimum construction standards. This will ensure your deck conforms to local laws. Any accredited or licensed decking installer will be up to speed on all these details.

You can also use a decking cost calculator to receive a ballpark estimate of your new composite deck, based off its square meterage. 

Is composite wood decking sustainable?

Composite decking is considered sustainable and eco-friendly, thanks to the almost exclusive use of recycled materials. Whether composite decking is more sustainable than timber decking is up for debate, however.

Sustainably harvested timber is also a sustainable resource, especially for fast growing timbers like Blackbutt, and takes carbon dioxide out of the atmosphere. However, recycled composite wood decking doesn’t use any new raw materials, and reduces waste.

Hiring a deck builder

When it comes time to hiring a deck builder, take time to make sure they are right for your job. At the very least, you’ll need to know:

• If they’re licensed and qualified

• If they’re insured

• How long they’ll take to finish the job

• If they can provide a written quote

• If they’ll take care of council approval for you

• A list of references you can look into

• How their previous jobs have turned out

Here’s a more comprehensive guide on questions to ask before getting a decking quote. Get at least three quotes before you commit to hiring anyone, so you can compare prices and the level of service offered in the market.

Decking safety and regulations

Many state/territories require projects above a certain value to be carried out by qualified trades. They have the necessary qualifications and training to make your decking project a reality – and avoid a potential safety issue. It is illegal to attempt a DIY deck when your local regulations stipulate the opposite.

You might also need council approval or a building permit to build your deck. This depends on a number of factors, including where you live, how big your deck is and if it is elevated. There are specific regulations for handrails, depending on the height of the deck.

Depending on where you live there are also specific regulations for decking constructed in bushfire zones and cyclone affected areas.

It's best to check all this before you get started on your decking project. Speak to your local council or your deck builder if you are unsure.

Does my composite deck builder need to be licensed?

It depends where you live - some states have a specific licence class for decking or it may be covered by another licence class, such as builder or carpenter. There are also state and council specific regulations governing the construction of decks.

If in doubt, get in touch with your local council or local licensing authority.

Getting quotes for composite decking prices

Award winning landscape designer Paal Grant advises over-engineering your deck for durability and longevity. Look for quotes that specify concrete and timber bearer sub floor spanning rather than nailed and timber stump footings, which are just within regulations.

The best way of finding out the cost of your composite wood decking job is to get quotes from local deck builders. This will give you a sense of what market rates currently are.

* All the costs and prices quoted were sourced at the time this article was written. They are indicative, may vary locally, are subject to market forces and should only be used as a guide.

Frequently asked questions

How much should composite deck boards cost?

Composite deck boards cost from $50 up, depending on size. To properly compare composite decking prices, compare prices per square metre, including clips and fasteners. Composite decking prices are typically $100 - $350 per square metre.

How much is composite deck vs wood?

Composite decking is typically more expensive than wood decking, though that’s slowly changing. Composite decking costs around $100 - $350 per square metre

What composite deck is best?

Popular brands of composite decking include FutureWood, Trex, DuraLife, Ekodeck and ModWood. Each has a different product lineup, and the best composite deck will be different for everyone.