Eucalyptus cloeziana and grandis poles for hydraulic engineering and timber construction, sourced from our group’s own plantations

Specialists in the civil engineering sector. FSC®100%, over 65,000 piles to be supplied in 2025 and 2026.

Two varieties, one clear rationale

Cloeziana is the hardwood for heavy-duty applications and salt water: strength class D70, durability class 1 and resistant to pile worm, without the need for preservative treatment. Grandis is the lighter variety for above-ground applications, available untreated or pressure-impregnated with Tanalith E. This allows you to choose the right pile for each application.

Round eucalyptus poles bundled on the production site

Eucalyptus cloeziana (Gympie Messmate)

Strength class D70 (SHR Wageningen, 2024), durability class 1, resistant to pile worms. Suitable for dyke reinforcement, revetments, quays, jetties and saltwater applications.

Veranda and pergola made from treated Eucalyptus grandis in Israel

Eucalyptus grandis (Rose Gum)

Strength class D50, pressure-treated with Tanalith E on request for use classes 3 and 4. For verandas, pergolas, carports, fencing and battens.

Dykes, riverbanks and quays

Cloeziana piles for dyke reinforcement, revetment and sheet piling: 9,000 piles on the Amsteldijk in Nieuwkoop, 6,850 in Stichtse Vecht and over 10,000 for the Scheldestromen Water Board.

Ports, jetties and salt water

Mooring posts, caissons and jetties in salt water without preservative treatment. Cloeziana mooring posts have been in place in the Venice Lagoon since 2010, and the heartwood has withstood 17 years of use in the port of Herkingen.

Tested by SHR Wageningen and TU Delft

Strength class D70 in accordance with NEN-EN 338, tested in accordance with NEN-EN 14251 (SHR report 23.0371, 2024). Resistant to shipworm after 17 years of practical use in the port of Herkingen (SHR report 23.0493, 2024). Micro-drilling comparison with azobé carried out by Delft University of Technology. The reports are available on request.

Applications in hydraulic engineering, civil engineering and outdoor spaces

Cloeziana replaces azobé and other tropical hardwoods in hydraulic engineering and civil engineering works; grandis is used for above-ground applications. Both are 100% FSC®-certified, supplied per m³ and on a project-by-project basis from The Hague.

Maritime and hydraulic engineering

Lake piles, sheet piling, jetties and quays in fresh and salt water. Cloeziana in service classes 4 and 5 without preservative treatment, resistant to shipworm.

Dykes, riverbanks and bridges

Shore protection, sheet piling, dyke reinforcement and bridges, specified under NEN 5493:2010+C1:2011 in the Netherlands and DIN EN 12699 with DIN EN 1995-1-1 in Germany. Round piles up to 18 metres and milled piles for plastic screens.

Timber construction and outdoor products

Grandis for verandas, pergolas, carports, fencing and battens, untreated or treated with Tanalith E. Glued laminated timber (glulam) made from Cloeziana and Grandis for beams and columns.

Outdoor space and landscape

Playground equipment, observation towers, suspension bridges and landscaping features offering a long service life and low maintenance, such as the observation tower at Recreatiepark de Leistert and the suspension bridge at the British School.

A single supply chain, from seed to customer

Forever Forests Group manages the FSC®100% certified plantations in South Africa; Margadant Wood harvests, saws, treats and dries the timber on site; and Wood Solutions imports and supplies it across Europe. Every consignment is traceable from plantation to project (Chain of Custody SCS-COC-000652-AY) and complies with the EUTR and EUDR.

Bridge made from Eucalyptus cloeziana

Cloeziana

Round poles ranging from 1.0 to 18.0 metres in length and 50 to 400 mm in diameter, milled poles, sheet piling, dragline piling and sawn timber up to 300 x 300 mm.

Eucalyptus grandis round timber

Grandis

Round and milled piles and battens, untreated or pressure-treated with Tanalith E, for above-ground use.

Multi-storey building with a timber façade structure

Laminated timber

Glulam beams and columns made from Cloeziana and Grandis, prefabricated. CLT is currently under development.

Proven in practice

Over 65,000 Cloeziana piles in 2025 and 2026 for dyke reinforcement, coastal protection and riverbanks in the Netherlands and Germany, as well as projects ranging from the Maldives to Marseille. For each project, we provide the location, product and a specific figure.

65.000+

Cloeziana piles to be supplied in 2025 and 2026

D70

Strength class for Cloeziana, classified by SHR Wageningen in 2024

1998

The group’s founding year, from plantation to delivery in Europe

100%

100% FSC®-certified, traceable from plantation to project

How we work

We supply by the cubic metre and on a project-by-project basis, directly from The Hague, complete with specification documents and supporting evidence.

Quality

Graded in accordance with SANS 754:2019, with a tolerance of no more than 7 mm per metre, accompanied by a grading certificate from the manufacturer with every delivery.

Sustainability

100% FSC®-certified from our group’s plantations, replanted after harvesting, in compliance with the EUTR and EUDR.

Reliability

A single, fully controlled supply chain, from harvest to delivery on site, with specification documents, certificates and reports available on request.

Plantation timber instead of tropical rainforest

Cloeziana grows in FSC® 100% certified plantations in South Africa and achieves the same grades as tropical hardwood in hydraulic engineering: strength class D70 and durability class 1. This allows you to build with hardwood without the need to fell trees in tropical rainforests, with full traceability from plantation to project.

Covered gallery made of eucalyptus timber, Marseille project

Would you like to discuss a project, tender or assess a project’s suitability for eucalyptus?

Please get in touch for a technical consultation or request a quote straight away. We are happy to discuss the details, risks and the best timber solution for your project – whether you are a contractor, distributor or client.

Send an email

sales@woodsolutions.nl

Contact us

+31703455693

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