Flat Cumaru substructure 21x90mm
Cumaru has a particularly high resistance to wood-destroying fungi and is therefore also suitable for structurally demanding solutions where a low construction height is required. As a substructure, Cumaru impresses with good dimensional stability, its resistance class 1 according to the DIN standard. The perfect substructure for wooden decking that needs to last a particularly long time and at the same time requires a flat structure.
The advantages
✓ low installation height
✓ hand-sorted brand quality from BioMaderas
✓ best durability in outdoor areas
✓ resistance class 1 according to DIN standard
✓ smooth planed surface
✓ red-brown tropical wood color
✓ FSC® 100%certified, from sustainable forestry
✓ transparent origin
✓ direct distribution
✓ climate-neutral shipping
Wooden decking advice
| Requirement per square meter of wooden decking | approx. 2.5 running meters |
| Row spacing | approx. 50cm |
| Wingspan | 60cm |
The origin
The Cumaru substructure comes from an FSC® 100%-certified forestry north of the Peruvian capital Lima. Visit the forest in Peru and learn more about the origin of the Cumaru wood.
OriginCustomer gallery wooden decking
Visit our customer gallery and read the testimonials of our decking wood customers.
Customer gallery
Shipping costs
Decking wood with finger-jointing
Finger-jointing is a tried-and-tested timber joint in timber construction that is used to join individual pieces of solid wood together to form a longer decking board. Wedge-shaped prongs at the ends of the pieces of wood interlock and are glued together to make them weatherproof. This can be seen on the surface of the floorboards, but fades into the background with weathering and the formation of patina.
Finger-jointing offers various advantages: The timber is less susceptible to warping and the tree trunk can be used more efficiently, making the product particularly sustainable and generally also cheaper.
Decking wood in comparison
The common features of our selected decking woods: ✓ high durability ✓ very good technical properties ✓ sustainable origin. Here is an overview of the special features:
Cumaru
✓ Best durability
✓ Particularly robust and scratch-resistant
✗ Partly rough surface
✗ High force development
Tip: Planks should be sanded after weathering.
Garapa
✓ smooth surface
✓ homogeneous, light color
✗ Ferrous materials lead to discoloration
✗ Unscrewed Tendency to warping
Tip: Terrace cleaning removes discoloration, and proper storage prevents warping.
Jatoba
✓ smooth surface
✓ strong color and grain
✗ Unoiled Tendency to crack
✗ Colored ingredients wash out
Tip: Clean and oil decking boards after installation.
Teak
✓ Best durability and dimensional stability
✓ Lowest risk of cracks and splinters
✗ Relatively expensive
✗ Not very long planks
Tip: Lay decking boards together.
Zubehör für Holzterrassen
Arbeiten Sie nur mit Zubehör, welches für die Verwendung mit dieser besonders resistenten Holzart getestet und zugelassen ist. Fragen Sie den Hersteller bezüglich der Eignung oder wählen Sie Produkte aus unserem Sortiment, welche bereits für den speziellen Einsatz getestet wurden. Eine Übersicht zu dem benötigten Zubehör für Ihren Terrassenbau finden Sie auf dieser Einkaufsliste. Eine individuelle und kostenlose Berechnung erhalten Sie, wenn Sie unseren Terrassenplaner nutzen.
Recommended accessoriesDiscount
From a purchase of €1,000 you will receive a discount of
1 % to 15 %
to your order.
The discount will be displayed on the shopping cart page and deducted directly from your purchase.








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