Composite Decking in Australia: Benefits, Colours and Maintenance Guide
Planning a deck for your patio, garden or outdoor entertaining area? Learn how composite decking compares with timber, what to consider when choosing colours, how to maintain your deck and which questions to ask before buying.
Explore the Decking Guide →What Is Composite Decking?
Composite decking is an outdoor decking material generally made from a combination of wood fibres and polymers, although formulations differ between products. It is available in a variety of colours, surface textures, board profiles and installation systems.
Homeowners often consider composite decking when they want a coordinated outdoor floor for a patio, poolside area or entertaining space. The right choice depends on the material specification, exposure to sun and rain, subframe design, installation requirements and ongoing care.
Before choosing a product, review its technical information rather than relying on appearance alone. UV performance, heat retention, slip resistance, drainage, structural span and warranty terms can vary significantly between decking systems.
In This Article
Image is illustrative design inspiration and is not represented as an actual Norwest Outdoors installation.
Potential Benefits of Composite Decking
Composite decking can be a useful option for homeowners comparing outdoor flooring materials. Its benefits depend on the exact product and how it is installed and maintained.
Consistent Colour Choices
Choose from available tones and textures to complement outdoor furniture, garden planting and your home’s exterior.
Care Requirements
Many composite products do not need the same routine staining or oiling as some timber decks, but regular cleaning is still important.
Contemporary Outdoor Style
Decking can define a seating zone, create a transition from indoors to outdoors or visually connect different parts of a garden.
Composite Decking vs Timber Decking
Both materials can work well in the right setting. Compare their maintenance needs, appearance, installation requirements and long-term costs before making a decision.
| Consideration | Composite Decking | Timber Decking |
|---|---|---|
| Material | Typically a wood-fibre and polymer composite; composition varies | Natural wood, with species-specific characteristics |
| Appearance | Manufactured colours and surface patterns | Natural grain and variation between boards |
| Maintenance | Cleaning and inspections; product-specific care | Cleaning and potentially periodic oiling, staining or sealing |
| Colour changes | May fade or weather over time | May weather, fade or change tone over time |
| Installation | Must follow the specific board and fixing system | Depends on timber species, subframe and fixing method |
| Cost comparison | Consider boards, clips, subframe, labour and maintenance | Consider timber grade, treatment, labour and ongoing maintenance |
Which option should you choose?
Composite decking may appeal if you prefer manufactured colours and want to avoid some of the recurring treatments used on timber. Timber may appeal if you value natural wood grain and are comfortable with its care requirements. Compare complete project costs and check suitability for the intended environment.
Composite Decking Colours for Australian Homes
Decking colour can influence how large, warm or contemporary an outdoor space feels. Available colours differ by range, so check physical samples and current supplier stock before making a final selection.
Warm Brown
Brown tones can complement timber furniture, neutral walls and green landscaping for a welcoming outdoor setting.
Grey and Charcoal
Grey tones can pair well with modern facades, black outdoor fittings and minimalist furniture.
Light Natural Tones
Lighter colours can create a bright look, but surface temperature and cleaning requirements still depend on the material and conditions.
Tips for choosing a colour
- Compare a sample outdoors in both direct sun and shade.
- Check how the colour looks beside your home’s exterior and outdoor furniture.
- Consider dust, leaf litter, water marks and the amount of foot traffic.
- Ask whether the product may change colour during its initial weathering period.
- Confirm that boards ordered at different times will be consistent with your chosen range.
How to Clean and Maintain Composite Decking
Regular care helps keep an outdoor deck looking presentable and allows you to identify problems early. Always use the product manufacturer’s maintenance guide as your primary reference.
1. Sweep Regularly
Remove leaves, dirt and debris so they do not accumulate between boards or interfere with drainage.
2. Wash Carefully
Use an approved cleaner and suitable tools. Test any cleaning solution on a discreet area first.
3. Clear Drainage Gaps
Keep spaces between boards and surrounding drainage routes clear of debris where the system design requires it.
4. Deal With Spills Promptly
Clean food, grease and drink spills promptly using the method recommended for the decking material.
5. Inspect Fixings
Check the deck for movement, damaged boards, loose fittings and signs of subframe problems.
6. Avoid Unapproved Products
Strong chemicals, abrasive tools or excessive pressure may damage some decking surfaces. Follow manufacturer guidance.
What to Check Before Buying Composite Decking
Use this checklist to compare products more confidently and avoid unexpected costs during installation.
- Board profile: Confirm whether the product is solid or hollow and what that means for the intended use.
- Dimensions: Check board length, width, thickness and the recommended joist spacing.
- Subframe: Confirm compatible framing, fixings, ventilation and ground clearance requirements.
- Slip performance: Request relevant test information for the environment where the deck will be installed.
- Heat and sun: Review the product’s guidance for high temperatures and direct sunlight.
- Warranty: Read the warranty conditions, exclusions, maintenance requirements and installation rules.
- Full project cost: Include boards, clips, edge trims, subframe, labour, delivery and waste allowance.
- Approvals: Check local planning, building and pool-safety requirements where applicable.
Plan for the complete installation
Decking performance depends on more than the visible boards. Drainage, ventilation, foundations, subframe construction and expansion allowances are important. Use an experienced installer or qualified professional where required and follow the specific product installation manual.
Composite Decking FAQs
Is composite decking suitable for Australian weather?
Some composite decking products are designed for outdoor use in Australian conditions. Suitability depends on the specific product, installation, sun exposure, drainage and environmental conditions. Review the manufacturer’s technical information.
Does composite decking require painting or oiling?
Many composite decking products do not require the same regular painting or oiling as some timber decks. However, cleaning and inspections remain important, and the manufacturer’s maintenance instructions should be followed.
Does composite decking fade?
Colour may change or weather over time, including during an initial stabilisation period. The amount depends on the formulation, exposure and product quality. Ask the supplier for information about expected colour change and warranty coverage.
Does composite decking get hot in the sun?
Decking surface temperature depends on colour, material, direct sunlight, ambient temperature and airflow. Some surfaces can become hot enough to be uncomfortable underfoot, so consider shade and product guidance when planning your space.
Is composite decking better than timber?
Neither is best for every project. Composite offers manufactured colours and different maintenance needs, while timber offers natural grain and may need periodic treatment. Compare lifecycle costs, appearance, installation and your maintenance preferences.
How do I get composite decking prices?
Contact Norwest Outdoors to ask about current product options, sizes, colours, availability and pricing. Installation costs depend on the site, subframe, access, preparation and project requirements.
Looking for Decking Options?
Speak with our team about composite decking products and confirm current colours, specifications and prices for your project.
Contact Norwest Outdoors
Address: 3/71 Kurrajong Avenue, Mount Druitt NSW 2770, Australia
Phone: (02) 8664 4207
Mobile: 0413 875 786
Website: norwestoutdoors.com.au