Composite Deck Cost

Composite decking, often known as composite wood decking, has recently grown in popularity, vying with a solid wood deck as the preferred material for many homeowners. The perfect balance of stiffness, durability, and low-maintenance surface is achieved through the use of recycled plastics (or uPVC) and timber fibres.

How much does composite decking cost, exactly? We’ve gathered all you need to know about composite decking in this article, as well as why you could consider composite wood decking over solid timber and how much it costs. So is composite decking worth it? Let’s find out.

What is Composite Decking?

Composite decking is manufactured by assembling various wood and plastic components together to create a product that has the appearance of natural wood. This material is ideal for anyone who values beauty, low-maintenance properties, durability and practicality.

Simulating the colour and grain of actual woods very effectively, composite decking is one of the most popular alternate decking materials. It’s also smooth to the touch, unlike solid wood decking, which requires less upkeep over time. Composite decking is often constructed using timber pulp and recycled plastic. The core of the composite decking board is generally made out of the wood pulp, while recycled plastics are used on the outside of each board.

Capped composite decking has a protective coating applied to it during production, making it more fade and stain-resistant. Composite decking that is not capped is generally less expensive.

Cost of Composite Deck

Composite decking prices range from $100 to $350+ per square meter, depending on the manufacturer (Australian dollars). There are a number of elements that may influence the overall cost of your project, as there are with any other wood decking installation. The following are some factors to consider:

  • Materials

Composite wood decking costs are generally greater than hardwood timber, however, this is changing as more people choose it. The finest brands may have finer features such as wood grain and a broader colour range. Hidden fasteners, which give a seamless aesthetic to your deck surface, may also cost more.

  • Size

The size of the space you want to decorate may give you a good idea of how much your project may cost. Composite decking installers generally provide a complete price, as well as a breakdown of all the component expenses, including labour.

  • Design

The design of your deck, particularly if it is a large structure, may require the approval of an accredited expert. This is to guarantee its long-term safety and structural stability. There are minimum construction requirements for decks, which may help ensure that your deck meets local codes. Any competent or licensed decking contractor may be well acquainted with all of these aspects.

If you live in a place where permits are necessary, you may have to pay a fee to your local council.

Composite Deck Price

Composite decking is green since it relies almost entirely on recycled materials. The sustainability of composite decking vs hardwood decking is a point of contention. Sustainably harvested timber is also a sustainable resource, especially for fast-growing timbers like Blackbutt, and removes carbon dioxide from the environment. Recycled composite decking, on the other hand, creates no fresh materials and minimizes waste.

In many jurisdictions, projects with a certain monetary value may be conducted by specialized personnel. They have the necessary credentials and training to make your decking project a reality, as well as prevent a potential safety hazard. When your local regulations prohibit you from doing it yourself, attempting a DIY deck is illegal. A building permit might be necessary if you want to construct your deck. This is determined by a variety of factors, including where you live, the size of your deck and whether it is elevated. Handrails may follow specific standards depending on the deck’s height.

Depending on where you live, local laws may apply to decking built in bushfire zones and cyclone-ravaged regions. It’s a good idea to double-check all of this before you start your decking project. If you have any questions, contact your municipal government or the person who installed your deck in the past.

Composite Decking Types

FutureWood, Trex, DuraLife, Ekodeck, and ModWood are among the most popular composite decking brands. Each firm has a unique product line and provides a 10-25 year guarantee. Not every outdoor layer may be appropriate for every property, but a decking expert can help you choose one that is.

Here are some of the most important distinctions between composite decking materials:

  • Capping. Another layer is added to composite decking during manufacturing. It increases the boards’ stain resistance and durability but at a cost.
  • Fastening. Composite boards can be drilled and fastened like hardwood boards, although more pricey materials generally include concealed connections.
  • Finish. Different versions may be found depending on the manufacturer, varying types of wood and other components. Higher-end composite decking may take more precise grain and colour patterns, which may be less random and resemble genuine wood.
  • Scalloping. Scalloped or unfinished bottoms are common on composite decking, which can help you save money but also reduce durability.
  • Waterproofing/Fireproofing. Depending on the brand, composite decking that is completely waterproof and fireproof can be more costly than standard items.

Timber Decking vs Composite Deck

Although wood-based outdoor decking is still popular, composite decking is gaining favour due to its higher durability and value. Why could you use composite decking when solid timber would suffice? However, there are a number of reasons why you may consider using it over natural wood:

  • Low-maintenance: Composite decking, on the other hand, only needs to be pressure cleaned when it gets dirty. All lumber decks need to be sanded and refinished on a regular basis, whereas composite decking may just require some mild sanding.
  • Looks: Composite decking has the same aesthetic as hardwood decking, and it won’t fade as much.
  • Durability: Composite decks are extremely strong, though they are typically not as long-lasting as hardwoods like Tallowwood or Ironbark.
  • Scratch, stain, and mould resistant: Composite decks are highly resistant to damage, wear, and deterioration thanks to their factory manufacturing procedure.
  • Waterproof and fireproof: Composite decks are highly resistant to weather conditions and can be used near ponds or gardens. Composite decking boards with a fire-resistant finish may also be used in regions vulnerable to forest fires.
  • Manufacturing: Composite decking is made entirely of wood, so it doesn’t need to be logged or virgin polymers.
Composite Deck Cost
Trex Composite Deck Installed

Of course, composite decking has certain disadvantages. For example, some composite materials are susceptible to staining from fatty substances, which is one of the reasons they’re not as durable as natural wood. Composite decks can also get rather hot beneath your feet when compared to genuine timber.

Composite Decking Boards

When comparing quotations and composite decking pricing, it’s vital to understand that everything isn’t what it appears.

Board sizes

The boards may differ in thickness. Some manufacturers might create their own pack sizes. You’ll need to know how many boards you’re getting when they’re sold at 8 or 10 packs. Warranties do not always cover rotting and warping, though most reputable dealers may stand behind their products. Having said that, composite decking is still an excellent option for outdoor flooring and can provide a low-maintenance lifestyle with lots of benefits. A composite deck builder may be able to work with you in determining the best material for your unique needs.

New Composite Deck Board Thickness

Usually, board thickness ranges from 20 to 23 mm. Thicker boards provide greater durability.

Professionals usually have a patented, automated press-die system that cuts out solid composite decking boards straight and true with no ridges or irregularities in the surface. The result is an even better-looking board than natural timber decking.


The hidden fastening system was invented which is currently used by composite decking worldwide. The proprietary concealed fastening system makes installation 60% faster than traditional wooden boards. Every company order comes with the fixings free of charge, with no additional costs, unlike other competitors.


When it comes to calculating the overall cost of your deck, the life cycle cost is crucial. Wood decking, in addition to being prone to splitting and rotting, requires regular upkeep in order to keep its appearance and structural integrity. A quality composite deck is maintenance-free, implying that a wood vs. composite deck may save you up to $2000 each year in addition to your original construction expenses.

Composite Decking Prices per Square Metre

Deck builders typically charge around $170 to $210 per m2 for decking services. They usually give set prices based on the size of your composite deck.

In Australia, deck builders from New South Wales charge the most for labour. They generally charge per square meter.

  • In Western Australia, prices range from $170 to $180 per square metre.
  • In Queensland, prices range from $185 to $190 per square metre.
  • In Victoria, prices range from $190 to $200 per square metre.
  • In New South Wales, prices range from $200 to $210 per square metre.

In most situations, the first visits are used to assess the space and provide homeowners with cost comparisons based on their demands.

Factors that Increase Composite Decking Cost

It’s all too easy to go into things without taking the time to plan and budget. When pricing a composite deck, keep in mind the following factors. This may assist you in using your resources efficiently and assure high-quality workmanship.

Decking Materials

The biggest expenses associated with laying a new composite deck are the materials, including the foundation, decking boards, fasteners, foundations, and railings. Composite wood is more expensive than traditional hardwoods (e.g., cedar). Labour costs for installing composite wood boards have increased because of the demand for more deck installers to carry and lay composite wood boards.

Decking Size

The overall cost of each composite deck is determined by a variety of factors, including the size. The total cost of materials for a 15m2 composite deck might range from $2,340 to $7,800.

Say the labour installation cost per square meter is $170, multiplying the total area by $170 gives you $2,550 in labour costs. The number of working hours required to construct and install the building may also affect pricing.

The prices listed above could be viewed as a starting point. Always check the price of a project with a local decking store.

Decking Structural Design

Composite decking is available in a variety of colours and patterns. These design features influence the cost of construction materials and labour. Composite decking jobs with special demands are likely to be more expensive than standard composite decking tasks.

Customized decks are generally more expensive than standard designs. Curved composite decks might be more time-consuming to construct because they need additional cutting and meticulous work. This may have an impact on the overall price.

Type of Installation

Local building permits may be required if you want to raise or join your deck structurally. Council expenses vary by state, so make sure to hire a reputable deck builder who can explain local rules. You may also contact your local government to double-check state requirements. This may assist you in planning your budget and avoiding delays caused by differences.

  • The cost of a renovation may be influenced by the following factors.
  • The type, size, and location of the residence.
  • Size and number of rooms to be added
  • Stairwells and whether or not they need to be re-done (e.g., if you have an older home with no staircase)
  • Preparing for this remodelling project involves more than simply tearing down walls.

Add-on features (such as steps) may also influence pricing. Ensure there are no price surprises by stating your needs clearly and getting a tradie that offers a clear quote. Unlike timber decks, composite decks are generally installed by specialists, not DIYers. A timber deck can be installed by the homeowner or a general building contractor, but composite decks are generally installed by specialists.

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