PuraPlus™ Square Hole Composite Decking – Walnut – 4000 mm
€31.99
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Pros and cons
Wider profile reduces the number of joints across the deck for a cleaner visual line and faster installation
Walnut reads cleanly across the larger board surface, suited to generous contemporary terraces
Hidden clip system gives a fastener-free deck surface
No oiling, staining, or annual maintenance routine over the life of the deck
Wider boards demand even joist spacing; any substructure inconsistency shows up more visibly than on narrow profiles
Single-extrusion construction means surface durability is good but not at co-extruded levels
Product specification
- Length
- 4000 mm
- Width
- 145 mm
- Thickness
- 21 mm
- Coverage
- 0.58 m²
- Material
- Composite
- Brand
- PuraComposite
- Range
- PuraPlus™
PuraPlus Square Hole Composite Decking
PuraPlus is the wider-profile variant of the square-hollow composite board, sitting one step up from the entry tier. The extra width per board reduces the number of joints across a typical deck and shortens installation time, both of which matter on larger projects. It carries the same square-chambered hollow construction as the entry-tier board but with the proportions that suit larger terraces and more open garden layouts.
Walnut is a confident mid-to-dark brown with subtle warm undertones, the closest match to traditional hardwood without the upkeep that hardwood demands. It pairs naturally with sandstone paving, brick, and warmer Irish house exteriors where a grey would feel too cool against the local light.
Why a wider board?
On a generous deck, fewer joints means a cleaner visual line, fewer expansion gaps to fall into, and faster handling on site. The wider profile also looks more proportionate against contemporary architecture, where standard-width boards can read as slightly fussy. Underfoot the feel is the same as the standard PuraPlus board: sound, solid, and grain-textured for slip resistance.
Installation guidance
Hidden clip system on joists at 350 mm centres or tighter, with composite expansion gaps in both directions. Wider boards benefit from particularly even joist spacing, since any inconsistency shows up more visibly across a larger surface. The PuraPlus installation manual covers joist tables, clip systems, and detailing at perimeters and steps.
Care & maintenance
Periodic wash and brush, no oiling or staining. The Walnut finish settles into its long-term tone within the first year. The PuraPlus care guide covers approved cleaning products and what to avoid.
Complete the deck
Compatible substructure components, fixings, and matched cleaning products are listed in the related products section at the bottom of this page. Adding them to the cart alongside the boards keeps the project on a single delivery.








