Terra Deck – Red Merbau Decking Board

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.