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Sun Decking Classic in Stone

Sun DeckingCompositeSolid core

  • Angled close-up of Sun Decking Classic composite boards in Stone, a pale greige embossed woodgrain, with the Sun Decking logo in the corner
$85/m² · AU

$85 per m² across Australia, inc GST

$66 per 5.4 m board

Average of 1 seller across Australia · prices to 15 Oct 2026

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4 colours

Design my deck freePrices by 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

Stone: 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.

This colour page summarises the Sun Decking Classic page. Colour page canonicalised to its range: 0 hosted photos (need 6) and no notes unique to this colour.

Other colours of Classic (3)

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 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

2 profiles drawn to one scale from the published sizes · Maker’s web page · checked . Interiors are schematic: cell shapes and cap thickness vary by maker.

The board

FactPublished valueSource · 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 read

Profile 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

Installation

FactPublished valueSource · checked
Max joist centres, residential
450 mm
How this was read

Installation 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 read

Installation 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 read

Installation 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 read

Web page of image sheets; no version or date printed.

Maker’s install guide · checked

Warranty

FactPublished valueSource · checked
Warranty, residential
15 years
How this was read

Limited 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 read

Same 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 read

The 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

These are the rows for this colour’s board. The full specification, with every profile, is on the Sun Decking Classic 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 Classic prices in your state: each the average of the sellers we track there.

Used for state prices. Kept on this device; never guessed from your location.

Or pick a state

Sun Decking Classic: national averages, across Australia

Board sizeAverage $/m²Per boardSellersPrices to
Sun Decking Classic 140 × 21.5$85.47$66 / 5.4 m1

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

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Documents

The maker’s own documents, linked where they publish them (never re-hosted).

All 5 sources behind this page
  1. CLASSIC composite boards page (solid-core WPC, rebated, 5400 mm, four colours) · Sun Decking · opened
  2. Sun Decking Limited Warranty (15 years residential, 10 years commercial; Classic and Elite) · Sun Decking · opened
  3. Sun Decking home page (three composite lines, 15-year warranty claim, east-coast supply) · Sun Decking · opened
  4. Sun Decking installation guide page (image sheets: hidden clips, thermal expansion with examples, butt joints, joist layout, panel and framing options) · Sun Decking · opened
  5. Sun Decking ELITE composite decking specifications (PDF: composition, weight, density, slip, expansion, joist centres) · Sun Decking · opened

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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