Sun Decking Elite in Harbour Grey
Sun DeckingCompositeSolid core
$115 per m² across Australia, inc GST
$89 per 5.4 m board
Set your state
- Board size
- 140 × 23 mm5.4 m lengths
- Cap
- Capped all roundA tougher outer shell that resists stains and fading
- 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, residentialFade and stain: 5 years
- Joist centres
- 450 mm maxResidential; 350 mm commercial
Harbour Grey: render colour, indicative. Sampled from the maker’s swatch image (Maker’s web page) on 6 Oct 2026 for the designer’s 3D view; never the real board. Order a sample before you choose.
Other colours of Elite (7)
Photos are the maker’s, credited. Render colours are indicative only.
Specifications
Every published fact, with its source and the day it was checked.
- solid corecapclip groove14023
Deck board 140 × 23 mm · 5.4 m, drawn with solid core, capped on every face, grooved on both edges for hidden clips
- 14023
Edge board 140 × 23 mm · 5.4 m, drawn with solid core, capped on every face, grooved on both edges for hidden clips
- 10010
Fascia 100 × 10 mm · 5.4 m, drawn with solid core, capped on every face
The board
| Fact | Published value | Source · checked |
|---|---|---|
| Material | Wood-plastic composite | Maker’s datasheet · checked |
| Core | Solid | Maker’s datasheet · checked |
| Cap | Capped all round (360°) | Maker’s datasheet · checked |
| Deck board | 140 × 23 mm, grooved both edges · 5.4 m lengths How this was readSpecification sheet and profile drawing: 140 x 23 mm, rebated both long edges, wood-embossed finish both sides. | Maker’s datasheet · checked |
| Weight (140 × 23) | 4.1 kg per metre How this was readSpecification sheet: 21.7 kg per 5400 mm length and 4.06 kg per lineal metre (21.7 / 5.4 is 4.02, a small internal difference). | Maker’s datasheet · 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 |
Tested performance
| Fact | Published value | Source · checked |
|---|---|---|
| Slip resistance (AS 4586) | P5 (wet pendulum) How this was readSpecification sheet: "AS4586:2013 wet slip test. Rated P5 in Aug 2020"; product page says boards are NATA-accredited tested. The report itself was not found. | Maker’s datasheet · checked |
Warranty
| Fact | Published value | Source · checked |
|---|---|---|
| Warranty, residential | 15 years How this was readLimited warranty (Classic and Elite): 15 years residential; also on the specification sheet. | Maker’s warranty · checked |
| Warranty, commercial | 10 years How this was read10 years commercial. | Maker’s warranty · checked |
| Fade and stain warranty | 5 years How this was readElite is warranted "against any significant fade for a period of five years"; staining and colour change from chemicals are excluded. | Maker’s warranty · checked |
Other published facts (3)
Other published facts
| Fact | Published value | Source · checked |
|---|---|---|
| Slip resistance, other methods (as published) | standard, elite-140x23: AS 4586:2013; rated, elite-140x23: 2020-08; lab, elite-140x23: Sliptest Australia Pty Ltd (NATA accredited, per the page) How this was readSpecification sheet: "AS4586:2013 wet slip test. Rated P5 in Aug 2020"; product page says boards are NATA-accredited tested. The report itself was not found. | Maker’s datasheet · checked |
| Recycled content (as published) | 90% (recycled plastic and wood fibre) How this was readFAQ: "Recycled plastics and wood fibres make up 90% of the materials"; composition 55% FSC wood, 35% recycled PET plastics plus bonding agents, UV stabilisers, colouring agents and an HDPE shell. | Maker’s web page · checked |
| Material properties (specification sheet) | Density: 1.38 g/cm3 · Thermal expansion: 44.2 x 10-6 per C (6.4 mm over 5400 mm for a 30 C change) · Water absorption: under 0.5% after 28-day submersion · Fire: Bfl-s0 per ISO 9239-1 at 11 kW/m2; re-testing to AS 3959 Appendix F noted How this was readSpecification sheet figures (the sheet describes the shell as "PE capped surround"). | Maker’s datasheet · checked |
These are the rows for this colour’s board. The full specification, with every profile, is on the Sun Decking Elite page.
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 Elite prices in your state: each the average of the sellers we track there.
Sun Decking Elite: national averages, across Australia
| Board size | Average $/m² | Per board | Sellers | Prices to |
|---|---|---|---|---|
| Sun Decking Elite 140 × 23 | $115.26 | $89 / 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 Elite 140 × 23 average $16.48.
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)
- DatasheetSun Decking ELITE composite decking specifications (PDF: composition, weight, density, slip, expansion, joist centres)
- WarrantySun Decking Limited Warranty (15 years residential, 10 years commercial; Classic and Elite)
All 5 sources behind this page
- Sun Decking ELITE composite decking specifications (PDF: composition, weight, density, slip, expansion, joist centres)
- ELITE WPC laminated composite decking page (P5 claim, composition, colours, edge and fascia boards)
- Sun Decking Limited Warranty (15 years residential, 10 years commercial; Classic and Elite)
- Sun Decking installation guide page (image sheets: hidden clips, thermal expansion with examples, butt joints, joist layout, panel and framing options)
- ELITE White decking page (140 x 23 x 5400 mm, 100 x 10 mm fascia, 450 mm 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.
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