Concrete 20Kg
$8.90
Concrete 20Kg is an engineered WPC (Wood Polymer Composite) board combining virgin HDPE and fine timber fibre, rated for UV, moisture, and slip resistance (AS 4586 Wet Pendulum Class W). Zero maintenance — no oiling, staining, or re-sanding required over its 25-year design life. At BuildBarn Hallam — 24–48 h Melbourne Metro delivery.
- AU Standard CertifiedAS 1684 & AS/NZS compliant
- Fast Metro DeliveryQuick turnaround from Hallam
- Trade Price MatchWe match any comparable price
- Premium MaterialsSourced from top Australian mills
- Expert AdviceSpeak to a local timber specialist
Melbourne delivery and pick-up options depend on your address and cart contents. Confirm fees and timeframes at checkout, or read our delivery information. Pick up & delivery
- Description
- Reviews (1)
Description
Overview
Concrete 20Kg is manufactured from a co-extruded WPC core with a high-density protective cap, eliminating the warping, splintering, and annual re-oiling that plague natural timber decks. The hollow-core or solid-profile design reduces dead load on subframes while maintaining a Charpy impact resistance suitable for heavy foot traffic and commercial applications. Engineered to retain dimensional stability across Melbourne’s full temperature range (−5 °C to 65 °C).
Technical Specifications
- Material: Co-extruded WPC (HDPE + timber fibre) with polymer cap
- Section size:
- Slip resistance: AS 4586 Wet Pendulum Class W (P4 equivalent)
- UV stability: ΔE < 3 after 3,000 h accelerated weathering (ISO 4892-3)
- Moisture absorption: < 1 % (24 h immersion test)
- Design life: 25 years above-ground with zero chemical treatment
- Fire rating: Group 3 / BAL-12.5 (verify with manufacturer for specific BAL rating)
- Fixing: Hidden clip system; concealed fastener compatible
- Colours: Multiple woodgrain finishes — see in-store swatch board
Best Applications
- Residential decks and balconies requiring low maintenance
- Pool surrounds and wet-area decking
- Commercial outdoor dining and retail precincts
- Aged-care and disability-access walkways (slip-resistance compliance)
- Coastal properties subject to salt spray and wind-driven rain
Delivery & Stock
Composite decking displayed in-store at BuildBarn, 3 Eastlink Drive, Hallam VIC 3803. Full colour range and fixing clips stocked on-site. 24–48 h Melbourne Metro delivery available. Call the Hallam warehouse to confirm current stock by colour and profile.
Delivering across Melbourne and Victoria
Supplying timber, decking, fencing and landscaping supplies with delivery coverage across Melbourne metro, outer suburbs and regional Victoria. Explore key areas below or browse the full location index.
1 review for Concrete 20Kg
Only logged in customers who have purchased this product may leave a review.
Isabella Moore –
I’m really satisfied with their concrete. It’s easy to use, smooth finish, and the logistics were spot on. Will happily buy from them again in the future!