Composite Decking Prices in Australia
When planning a decking project, understanding composite decking prices is essential. The cost can vary significantly depending on the board profile, surface technology, project size and whether the quote covers boards only or a complete installed deck. This guide explains composite decking price and cost per square metre in Australia, including boards, clips, subframes, delivery, waste and installation.
How much does composite decking cost per m² in Australia?
Based on PureSolid’s displayed sale prices, PureSolid composite decking boards currently cost approximately $68–$121 per m² for boards only. A fully installed deck costs more because the total may also include hidden clips, screws, edge boards, a new subframe, delivery, waste, labour and removal of an existing deck.
Prices are in AUD and are a guide rather than a fixed quote. The boards-only range is calculated from displayed board prices and nominal board dimensions. It excludes board spacing, waste, accessories, freight and installation. Last updated: 30 July 2026.
Composite decking cost per m² in Australia
Composite decking cost per m² in Australia varies according to the board profile, capping technology, delivery location and installation requirements. Hollow boards generally have a lower material cost, while solid and capped co-extrusion boards typically cost more because they use more material or include additional surface protection.
Suppliers may display composite decking prices per board or per square metre. A per-board price can be misleading because boards of different widths and lengths cover different areas. Converting each product to a price per square metre provides a more consistent comparison.
For an accurate budget, always check whether the quoted composite decking price includes GST, clips, screws, edge boards, fascia, trims, delivery, waste, subframe materials and installation. Long boards, including PureSolid’s 5.4 m decking boards, may require specialised freight, so delivery location can materially affect the final project cost.
To estimate the area of a rectangular deck:
- Deck area (m²) = length × width
- Ordering allowance = deck area × 1.05 to 1.10
- Allow more than 10% only when the design includes diagonal boards, many corners, stairs or other complex cuts.
Composite decking price range by board type
The table below converts PureSolid’s displayed sale price per board into an approximate boards-only price per square metre. It uses each board’s nominal face area: board price ÷ (board length × board width).
| Product / range | Approx. board price per m² | Best for | Warranty / key feature |
|---|---|---|---|
| Classic Hollow composite decking | Approx. $68/m² | Budget-conscious patios and straightforward residential decks | 8-year warranty; lightweight hollow profile |
| Classic Solid composite decking | Approx. $99/m² | Residential decks needing a solid-core board | 15-year warranty; higher load-bearing strength |
| Pro Hollow capped composite decking | Approx. $101/m² | Residential decks where capped surface protection and lower weight are priorities | 10-year warranty; co-extrusion surface; BAL 29 listed |
| Pro Solid capped composite decking | Approx. $121/m² | High-use, premium residential and commercial-style applications | 25-year warranty; solid co-extrusion board; BAL 29 listed |
Approximate boards-only figures based on displayed sale prices and nominal board dimensions on 30 July 2026. The figures exclude board spacing, clips, screws, edge boards, subframe, delivery, waste and labour. Product prices and availability can change.
Compare PureSolid composite decking board options, or use the PureSolid deck calculator to estimate board and fixing quantities.
What affects composite decking prices?
Raw materials and board construction
Composite decking prices reflect the board’s material composition, density and manufacturing method. Hollow boards use less material and are lighter, which can reduce their upfront cost. Solid-core boards use more material and provide greater load-bearing strength, making them suitable for high-use areas and projects where a more substantial board is preferred.
Capped and uncapped surfaces
Co-extrusion adds a protective outer layer around the composite core. This manufacturing step can increase the board price, but it can also improve resistance to moisture, staining, fading and everyday wear. The right choice depends on the deck’s exposure, traffic and expected service life.
Board dimensions and coverage
Two boards with the same price may not offer the same value if their dimensions differ. Compare the installed coverage per board and the resulting price per square metre, rather than looking only at the headline price per board.
Warranty and product features
Warranty length, slip resistance, fire rating, UV stability and compatibility with hidden-fix systems can influence price. Select a product whose documented features suit the intended application instead of automatically choosing the lowest-priced board.
Location, delivery and installer availability
Composite decking cost per m² can vary across Australia because freight distances and labour availability differ by state and region. PureSolid holds local stock in Adelaide and provides delivery support, but customers should request a freight quote for their postcode before finalising a budget.
Composite decking material cost vs installed cost
Boards-only cost is the price of the decking boards before accessories and project work are added. It is useful for comparing products, but it does not represent the finished cost of a deck.
Installed composite decking cost may include hidden clips, screws, starter or locking clips, edge boards, fascia and trims, the supporting subframe, footings, labour, delivery and removal of an old deck. The installed price depends on site access, deck height, the condition of an existing frame, stairs, borders, curves and layout complexity.
For this reason, a national installed price should only be treated as a broad planning guide. Ask installers to quote the same scope and provide itemised figures so the offers can be compared fairly.
PureSolid can help estimate material quantities from your project dimensions. Use the deck calculator, then get a quote for composite decking materials so the boards, fixings, edge details and freight can be checked together.
Other costs to include in your decking budget
| Cost item | Typical range | When it applies | Notes |
|---|---|---|---|
| Composite decking boards | Approx. $68–$121/m² at displayed sale prices | Every project | Boards only; allow for product price changes and the actual board layout |
| Hidden clips and fasteners | Displayed clip prices from $0.30–$0.50 each, plus compatible screws where required | Most grooved-board installations | Quantity depends on joist spacing, board layout and joins |
| Subframe and joists | Quote required | New decks or when an existing frame is unsuitable | Material, spans, footings, height and engineering requirements affect cost |
| Labour and installation | Quote required | Professionally installed projects | Access, stairs, borders, height and complexity affect labour |
| Delivery | Custom freight quote required | Orders requiring delivery | Long boards and regional or interstate locations may cost more |
| Waste allowance | Usually add 5–10% to the board quantity | Every project | Allow more for diagonal or complex layouts |
| Stairs, edges, fascia and trims | Quote required; edge boards are sold separately | Decks with visible edges, steps or picture-frame borders | The number of exposed edges and selected finish affect cost |
| Removal of an existing deck | Quote required | Replacement projects | Disposal volume, access and hazardous materials can affect cost |
Clips and fasteners
Hidden clips create consistent spacing and a clean surface without visible face-fixed screws. PureSolid currently lists standard clips at $0.50 each, T-joining clips at $0.40 each and locking clips at $0.30–$0.50 each, with compatible screws sold separately. The required quantity depends on the joist spacing and number of board-to-joist intersections. Use the deck calculator to estimate clips for composite decking installation, then confirm the result before ordering.
Subframe and joists
A new subframe may be required for a new deck or when an existing frame is damaged, incorrectly spaced or unsuitable for the selected composite board. Subframe cost depends on the joist material, spans, footings, deck height, drainage and engineering requirements. A qualified installer should assess an existing frame before boards are ordered.
Delivery
Delivery affects composite decking cost because 5.4 m boards require suitable handling and transport. PureSolid states that freight is not calculated automatically at checkout and requires a custom quote. Confirm delivery charges, unloading access and lead time for your postcode.
Waste allowance
Add 5–10% to the measured deck area for normal offcuts and board selection. A simple rectangular layout can sit near the lower end. Diagonal patterns, stairs, picture-frame borders and irregular shapes may require a higher allowance.
Labour and installation
Composite decking installation cost depends on site preparation, access, deck height, frame condition, stairs and design complexity. Ask for an itemised quote showing boards, fixings, subframe, edge details, freight, labour, GST and removal work separately.
Example composite decking cost calculation
Consider a rectangular deck measuring 5 m × 4 m:
- Deck area: 5 m × 4 m = 20 m².
- Waste allowance: add 5–10%, giving an ordering area of 21–22 m².
- Boards: multiply 21–22 m² by the selected boards-only price per m². At the current approximate PureSolid range of $68–$121/m², the board allowance is approximately $1,428–$2,662.
- Clips and screws: use the deck calculator to estimate the quantity required for the selected joist spacing and layout, then multiply it by the current unit prices.
- Delivery: add the freight quote for the project postcode.
- Subframe and labour: add these after the existing frame and site have been assessed.
The example is illustrative and is not a final bill of materials or installation quote.
Simple composite decking cost formula
Deck area = length × width
Ordering area = deck area × 1.05 to 1.10
Boards allowance = ordering area × board price per m²
Total project estimate = boards + clips and screws + edge details + subframe + delivery + labour + removal, where applicable
Composite decking vs timber cost
Timber decking can have a lower initial material price, particularly for entry-level species. However, the initial purchase price is only one part of the comparison. Timber may require sanding, oiling, staining and replacement of damaged boards, while composite decking generally needs routine cleaning rather than regular refinishing.
When comparing timber vs composite cost, consider:
- The initial price of boards and compatible fixings
- Subframe and installation requirements
- Expected cleaning and maintenance
- Oiling, staining, sanding and repair costs
- Warranty coverage and expected service life
- The value of reduced maintenance time
Composite decking is not automatically cheaper in every project, but its lower maintenance requirements can provide better long-term value for homeowners who want to avoid recurring refinishing work.
How to reduce your composite decking cost
- Match the board to the location: use an economical hollow board for a straightforward, lower-use residential area and consider solid or capped boards for demanding locations.
- Keep the layout simple: rectangular layouts and designs aligned with available board lengths generally produce fewer offcuts.
- Calculate quantities before ordering: use the deck calculator, then confirm the bill of materials with PureSolid.
- Compare like with like: compare price per m², warranty, construction and intended use—not just price per board.
- Check the existing frame early: do not assume a subframe can be reused until its condition, spacing and suitability have been assessed.
- Request an itemised quote: make sure delivery, clips, screws, edge boards, labour and GST are clearly identified.
- Plan delivery carefully: ordering the boards and compatible accessories together can reduce missing components and repeat freight.
Specs that matter when comparing composite decking
Price should be considered alongside the specifications that affect suitability and long-term performance:
- Board dimensions, including length, width and thickness
- Hollow or solid-core construction
- Capped co-extrusion or uncapped surface
- Recommended residential and commercial joist spans
- UV, moisture and stain resistance
- Slip and fire ratings where relevant
- Minimum ground clearance and drainage requirements
- Warranty length and coverage
- Compatible hidden fixing system
- Availability of matching edge boards, fascia and trims
Compare PureSolid composite decking products
Choose Classic Hollow composite decking for an economical hollow-board option, Classic Solid composite decking for a solid-core residential board, Pro Hollow capped decking for co-extrusion protection in a lighter profile, or Pro Solid capped decking for PureSolid’s longest listed decking warranty.
View composite decking boards for residential decks, use the PureSolid deck calculator, or get a quote for composite decking materials.
Composite decking cost FAQ
How much does composite decking cost per m² in Australia?
Based on PureSolid’s displayed sale prices on 30 July 2026, its composite decking boards cost approximately $68–$121 per m² for boards only. Clips, screws, edge boards, subframe, delivery, waste and labour are extra. The final installed cost depends on the selected product, site conditions and project scope.
Is composite decking cheaper than timber?
Composite decking often costs more upfront than entry-level timber. However, timber can require periodic sanding, oiling, staining and board replacement, while composite decking requires less routine maintenance. Compare both the initial project price and expected maintenance over the years you plan to own the deck.
What is included in composite decking material cost?
“Material cost” can mean boards only or a fuller materials package. Check whether the quote includes hidden clips, screws, starter or locking clips, edge boards, fascia, trims, subframe materials, waste and delivery. PureSolid’s per-m² board figures on this page cover boards only unless stated otherwise.
How much do clips and fasteners add to the cost?
The total depends on joist spacing, board layout and the number of joins. PureSolid currently displays individual clip prices from $0.30 to $0.50, with compatible screws sold separately. Use the deck calculator to estimate quantities, then confirm the correct clip and screw combination for the selected board and subframe.
Do I need a new subframe for composite decking?
Not always. An existing subframe may be reusable if it is structurally sound, correctly spaced, level and compatible with the selected boards and fixings. Have it assessed before ordering. A damaged, inadequately spaced or non-compliant frame should be repaired or replaced.
How much waste should I allow for composite decking?
Allow 5–10% for most straightforward decks. Simple rectangular layouts may need less waste than diagonal patterns, stairs, borders or irregular shapes. Use the deck calculator and confirm the board layout before ordering.
Does delivery affect composite decking price?
Yes. Composite boards are long, so freight depends on distance, order size, access and unloading requirements. PureSolid does not automatically calculate delivery at checkout; request a custom freight quote for the project postcode.
Can I install composite decking myself?
Some experienced DIYers can install a simple, low-level deck, but the subframe, drainage, expansion gaps, joist spacing and fixing method must follow the product instructions and applicable building requirements. Complex, elevated or structural work should be handled by a suitably qualified professional.
Plan your composite decking budget with confidence
The most useful composite decking price is not simply the cheapest price per board. Compare boards by cost per square metre, construction, warranty and intended use, then add the accessories, delivery and installation work required for the finished deck.
Start with accurate dimensions, add an appropriate waste allowance and request a transparent, itemised quote. PureSolid can help estimate board and fixing quantities so you can choose a composite decking system that suits your project, site and budget.