Straight, clean and warm to the touch. Built to withstand sun, salt and the changing seasons, now with the same reliability of supply as our Cloeziana range.
Along the Mediterranean coasts, there is strong demand for treated Grandis: straight, clean and warm to the touch, built to withstand sun, salt and the changing seasons. In 2025 and 2026, we supplied, amongst other things, 10,500 Grandis posts for a luxury construction project in Valencia, Grandis for beach huts on the coast near Marseille, and Grandis for resorts in the Maldives and Réunion. We are now making this international demand available to the European market, with the same reliability of supply as our Cloeziana range.
The standard configuration serves as the starting point: pressure-impregnated with Tanalith E and finished with a sandblasted or milled surface. This protects the pole against rot, mould and insects, whilst providing a clean, durable finish. Additional options: Boron-treated for light above-ground applications; pointed on request.








Patio canopies, pergolas and lapas, playground equipment, carports, fencing and landscaping, electricity poles. We supply to your specified dimensions, bundled and ready for processing. For applications in or near salt water, we recommend Cloeziana; this ensures that each species remains within its own area of expertise.
From our group’s FSC® 100% certified plantations to delivery on your site: a single supply chain, a single point of contact. Since 1998.
Grandis is specified as eucalyptus round timber, either untreated or, at the client’s request, vacuum-pressure treated with water-based Tanalith E: graded in accordance with SANS 754:2019, natural durability class 3 for the heartwood in accordance with NEN-EN 350 and, when treated with Tanalith E, suitable for use classes 3 and 4 in accordance with NEN-EN 335. The preservation treatment is carried out in South Africa using Tanalith E 3485 from Arxada (copper and water-based organic biocides, free from chromium and arsenic) for hazard class H3 or H4 in accordance with SANS 10005. H3 refers to above-ground outdoor use and corresponds to use class 3; H4 refers to in-ground use and corresponds to use class 4. Retention and penetration levels comply with the project specification and NEN-EN 351-1 and are stated in the treatment certificate supplied with the delivery. Strength class D50 based on the average test values from Banks (1954). FSC® 100% under certificate numbers SCS-COC-000652-AY and SGSCH-COC-009190, in accordance with EUTR and EUDR. For applications in salt water (service class 5, SANS H6), please specify cloeziana.
The tender document is a single A4 PDF containing a fully completed product specification for round timber posts, milled posts and battens, including the Tanalith E option. You can either print it out or incorporate the details into your tender specifications.
Email your enquiry to sales@woodsolutions.nl or book a technical consultation. We supply Grandis by the cubic metre and on a project-by-project basis, either untreated or treated with Tanalith E.
To provide the best possible experience, we use technologies such as cookies to store and/or access information about your device. By consenting to these technologies, we may process data such as browsing behaviour or unique identifiers on this site. If you do not give your consent or withdraw it, this may adversely affect certain features and functionality.