Terra Deck – Red Merbau Decking Board

Terra Deck – Red Merbau Decking Board

$ 49.00
Co Extrusion Gen 5 Circular Hole WPC Base Decking Board – Red Merbau (137mmX23mmX5400mm)
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PRODUCT DESCRIPTION

Terra Deck – Red Merbau Decking Board (137mm × 23mm × 5400mm)

Merbau has been Australia’s favourite decking timber for decades. The rich red-brown colour, the hardness, the way it weathers — it built a reputation that no other species quite matched for outdoor entertaining areas. The problem has always been the upkeep. Real Merbau needs oiling every year to maintain that colour. Without it, the red fades to silver-grey, the surface checks and splinters, and you’re dealing with a maintenance schedule that most homeowners underestimate when they buy.

The Terra Deck Red Merbau board takes that colour reference and engineers out the maintenance problem entirely.

This is a Co-Extrusion Gen 5 board — the most advanced WPC manufacturing process available in the composite decking category. Gen 5 co-extrusion means the protective polymer shell isn’t a coating applied after manufacture — it’s fused to all four sides of the board during extrusion as an integral part of the board’s structure. The result is a surface that resists UV fading, staining, and moisture penetration more effectively than any uncapped WPC product.

The Red Merbau colour on this board is deep and warm — a genuine red-brown rather than an orange-brown or a neutral beige-timber. In good sunlight it has the richness and saturation you’d see in freshly oiled natural Merbau. The circular hollow core profile provides drainage and airflow beneath the board and across the subframe, which is underappreciated — it’s one of the reasons composite decks outlast their subframes when the subframe isn’t protected.

At 137mm wide and 23mm thick, this is a standard residential decking profile with good rigidity across the span between joists.

Specs:
• Product: Co-Extrusion Gen 5 Circular Hole WPC Base Decking Board
• Dimensions: 137mm × 23mm × 5400mm
• Technology: Gen 5 co-extrusion (polymer shell fused to all four sides)
• Core: Circular hollow
• Colour: Red Merbau (deep red-brown, warm tone)
• Suitable for: Outdoor decks, balconies, pool surrounds, alfresco areas, pergola floors
• Maintenance: Wash with mild soapy water — no oiling, sealing or staining

Will not rot, warp, or splinter. Termite resistant. Suitable for Australian climate conditions including high UV, coastal salt air, and wet weather.

PropertySpecification
Width 137mm
Thickness 23mm
Length 5400mm
Q: How close is the Red Merbau colour to actual Merbau timber?
A: It's a strong visual reference to freshly oiled Merbau — the same deep red-brown warmth. Natural Merbau varies by piece and cut, and without oiling quickly turns silver-grey. This board holds its Red Merbau colour without any oiling schedule.
Q: What does Co-Extrusion Gen 5 actually mean in practice?
A: It means the protective outer layer is fused to the board during manufacturing, not applied as an afterthought coating. The shell covers all four sides — top, bottom, and both edges. This gives the board significantly better resistance to moisture, UV fading, staining, and scratching compared to standard first-generation WPC products.
Q: Does Red Merbau WPC get hot underfoot in summer like some composite decks?
A: Darker composite boards absorb more heat than light-coloured boards — this is true of all decking, including real timber. In full sun in Australian summer, the surface will get warm. For pool surrounds or barefoot areas in peak sun, consider the board placement, add shade structures where possible, or look at lighter colour options in the range.
Q: What joist spacing is recommended for a 23mm thick board?
A: At 23mm thickness, 450mm joist centres are the standard residential specification. For higher load applications or spans over 450mm, consult your builder or structural specification.

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