Sun Decking Classic
Sun DeckingCompositeSolid core
$85 per m² across Australia, inc GST
$66 per 5.4 m board
Set your state
- Board size
- 140 × 21.5 mm5.4 m lengths
- Cap
- Uncapped
- Core
- Solid
- Fixing
- Hidden clips or face screwsStandard steel board clip (3 mm gap) or plastic/ABS board clip (5-5.5 mm gap)
- Warranty
- 15 years, residential
- Joist centres
- 450 mm maxResidential; 350 mm commercial
Specifications
Every published fact, with its source and the day it was checked.
- solid coreclip groove14021.5
Deck board 140 × 21.5 mm · 5.4 m, drawn with solid core, uncapped, grooved on both edges for hidden clips
- 13010
Fascia 130 × 10 mm · 5.4 m, drawn with solid core, uncapped
The board
| Fact | Published value | Source · checked |
|---|---|---|
| Material | Wood-plastic composite | Maker’s web page · checked |
| Core | Solid | Maker’s web page · checked |
| Cap | Uncapped | Maker’s web page · checked |
| Deck board | 140 × 21.5 mm, grooved both edges · 5.4 m lengths How this was readProfile drawing on the product page: 140 x 21.5 mm with a rebate on each long edge for hidden clips; deep-embossed grain one face, sanded the other (either face can be used). | Maker’s web page · checked |
| Fascia | 130 × 10 mm, no edge profile · 5.4 m lengths How this was readFascia profile drawing 130 x 10 mm; length taken as 5400 mm to match the deck board (not stated for the fascia). | Maker’s web page · checked |
Installation
| Fact | Published value | Source · checked |
|---|---|---|
| Max joist centres, residential | 450 mm How this was readInstallation guide "General joist layout": maximum 450 mm span for domestic use; boards must run over at least three joists. | Maker’s install guide · checked |
| Max joist centres, commercial | 350 mm How this was readInstallation guide: commercial requires 350 mm spans (ELITE specification sheet: 350 mm centres for heavy use/commercial). | Maker’s install guide · checked |
| Gap between boards | 3 mmSources disagree. Maker’s install guide says 5 (Plastic board clips (installation guide).); Maker’s datasheet says 5.5 (Moulded ABS fastener (ELITE specification sheet).). The published value comes from the higher-ranked source; safety facts take the conservative one. | Maker’s install guide · checked |
| End gap rule | Total expansion of a 5.4 m board: 1.08 mm for a 5 °C change; 2.16 mm for a 10 °C change; 3.24 mm for a 15 °C change; 4.32 mm for a 20 °C change; 5.4 mm for a 25 °C change; 6.48 mm for a 30 °C change; 7.56 mm for a 35 °C change; 8.64 mm for a 40 °C change · Expansion coefficient: 44.2e-6 (ELITE specification) · Worked example: 5.4 m board in full sun, 25 C laid to 55 C: about 6 mm total, so 3 mm gap each end to framing/breaker board How this was readInstallation guide "Thermal expansion" sheet (total board variance for a given temperature change; 0.2 mm per metre per 5 C). Surface temperature in full sun is quoted as up to about 60 C. The guide says a blanket 3 mm gap is usually too large for butt joins in shade and gives worked examples; no fixed gap table. | Maker’s install guide · checked |
| Butt joints | Board ends land on a double joist | Maker’s install guide · checked |
| Fixing: hidden clip | Standard steel board clip (3 mm gap) or plastic/ABS board clip (5-5.5 mm gap) | Maker’s install guide · checked |
| Fixing: hidden clip | Starter clip (outside edge of first board) | Maker’s install guide · checked |
| Fixing: hidden clip | Framing clip (framing and breaker boards) | Maker’s install guide · checked |
| Fixing: hidden clip | Vertical clip (outside edge, lets the framing board go in last) | Maker’s install guide · checked |
| Fixing: face screw | Stainless 304 screws (ELITE specification) | Maker’s install guide · checked |
| Installation guide | Maker’s guide How this was readWeb page of image sheets; no version or date printed. | Maker’s install guide · checked |
Warranty
| Fact | Published value | Source · checked |
|---|---|---|
| Warranty, residential | 15 years How this was readLimited warranty: 15 years against splitting, splintering, rot and termite damage; replacement full in years 1-5, then prorated (80% in years 6-7, 70% year 8, 50% year 9 per the table). | Maker’s warranty · checked |
| Warranty, commercial | 10 years How this was readSame document: 10 years commercial, with a steeper pro-rata from year 4. | Maker’s warranty · checked |
| Fade and stain warranty | No cover stated How this was readThe warranty states Classic goes slightly lighter in the first 3 months and "do not warrant the Classic product against fading"; staining is excluded. | Maker’s warranty · checked |
Every fact here carries its source and the day it was checked. Documents opened 6 Oct 2026.
Prices by state
Set your state once and every price on this site is quoted for it, including GST. Then this page shows the Sun Decking Classic prices in your state: each the average of the sellers we track there.
Sun Decking Classic: national averages, across Australia
| Board size | Average $/m² | Per board | Sellers | Prices to |
|---|---|---|---|---|
| Sun Decking Classic 140 × 21.5 | $85.47 | $66 / 5.4 m | 1 |
Prices from 1 seller across Australia. We don’t list the whole market, so other sellers may have different prices. Seen 15 Oct 2026.
Prices include GST. Each is the average of the sellers we track for that board, each seller counted once, with any price more than 25% from the middle one left out; sample data is badged.
How we get these prices
Each price is an average of the retail prices we have seen for that board, with any price more than 25% above or below the middle price left out. Each seller counts once. Prices include GST and are per square metre of deck (the board’s cover width plus the gap beside it) and per board. Prices were seen on the dates shown on sellers’ own price lists and websites; confirm with the seller before you buy.
Per lineal metre: Sun Decking Classic 140 × 21.5 average $12.22.
Customer reviews
We publish every review that meets our review policy, positive or negative. Labels show when a reviewer was invited, got something for writing it, or works in the industry.
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Documents
The maker’s own documents, linked where they publish them (never re-hosted).
- Installation guideSun Decking installation guide page (image sheets: hidden clips, thermal expansion with examples, butt joints, joist layout, panel and framing options)
- WarrantySun Decking Limited Warranty (15 years residential, 10 years commercial; Classic and Elite)
All 5 sources behind this page
- CLASSIC composite boards page (solid-core WPC, rebated, 5400 mm, four colours)
- Sun Decking Limited Warranty (15 years residential, 10 years commercial; Classic and Elite)
- Sun Decking home page (three composite lines, 15-year warranty claim, east-coast supply)
- Sun Decking installation guide page (image sheets: hidden clips, thermal expansion with examples, butt joints, joist layout, panel and framing options)
- Sun Decking ELITE composite decking specifications (PDF: composition, weight, density, slip, expansion, joist centres)
Facts are taken from the highest-ranked source (certificates and test reports, then install guides and datasheets, then warranties, then web pages); when sources disagree the specification says so, and safety facts take the conservative value. Every plan the designer draws from these figures is a concept plan, not for construction: the span tables behind its framing have been checked by a structural engineer, but a builder, building surveyor or certifier must check the plan before you build.
Similar boards
Other Sun Decking ranges, and boards of the same material in similar colours.
Priceset stateSun DeckingComposite
Elite
- Beech
- Harbour Grey
- Light Grey
- Oak
- Slate Grey
- Teak
- and 2 more
Board: 140 × 23 mmCap: CappedFixing: Hidden clips or screws
Priceset stateSun DeckingComposite
Ultimate
- Cedar
- Ivory
- Royal Teak
- Smoke
Cap: CappedFixing: Hidden clips or screwsPrice: Price on request
Priceset stateEkodeckComposite
Designer Series
- Alpine Ash
- Ironwood
- Backbeach
- Leatherwood
- Riverbank Red
- Estate Brown
Board: 137 × 23 mmCap: CappedFixing: Hidden clips or screws
Priceset stateModWoodComposite
Xtreme Guard
- Charwood
- Fire Brick
- Koko Brown
- Magnetic Grey
- Sandy Bay
Board: 137 × 23 mmCap: CappedFixing: Hidden clips or screws
