Eucalyptus grandis: new to the European market

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.

Strong demand along the Mediterranean coasts; now available in the Netherlands

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.

This is how most customers place their orders

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.

Veranda with a roof made from round Eucalyptus timbers

Specifications

  • Strength class D50, based on the average test values from Banks (1954): modulus of rupture 108 MPa, modulus of elasticity 15,772 MPa, density 695 kg/m³.
  • Natural durability class 3 for the heartwood (Houtvademecum 2005); therefore, on request, pressure-impregnated with Tanalith E 3485 for use classes 3 and 4 in accordance with NEN-EN 335: hazard class H3 (outdoors above ground) or H4 (in the ground) in accordance with SANS 10005; retention and penetration in accordance with the project specification and NEN-EN 351-1, as recorded in the treatment certificate.
  • Round timber: taper not exceeding 7 mm per metre in length, stricter than SANS 754:2019.
  • Round posts: 1.0 to 18.0 metres by 50 to 400 mm. Milled posts: 1.0 to 12.0 metres by 100 to 220 mm.
  • Battens: 1.8 to 4.5 metres by 22 to 32 mm, washed, sanded and bundled.
  • Dried on site; moisture content on dispatch below 20 per cent, unless otherwise agreed.
Veranda and pergola made from treated Eucalyptus grandis in Israel

For manufacturers of outdoor products

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.

Harvesting in a eucalyptus plantation in South Africa, seen from the air

Reliable supply from a single source

From our group’s FSC® 100% certified plantations to delivery on your site: a single supply chain, a single point of contact. Since 1998.

Specification text for grandis

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.

Would you like to order Grandis?

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.