Cumaru substructure flat
21x90mm, FSC 100%
from 6,10 €
Our Cumaru decking boards as a flat substructure in 21mm thickness for particularly low installation heights - for example on balconies and roof terraces. The substructure is FSC® 100% certified - from sustainable and fair production.
Online patio planner
| Width | 90 mm |
| Size | 21 mm |
| Length | 91 cm to 609 cm |
| Species | Cumaru (Dipteryx odorata) |
| Origin | Peru, FSC® 100% certified |
| Surface | planed smooth on all sides |
| minimum lengths | Planks can be a few centimeters longer |
| durability | Class 1 |
| Drying | technically dried (KD) |
| Online patio planner | laying plan and get offer |
| installation instructions | terrace guide as PDF |
| Recommended accessories | only tested material |
| Spannweite | 60cm |
| Volume discounts | 1% Discount per €1.000 purchase value - up to max. 15% |
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 installation height is required. As a substructure, Cumaru impresses with its good dimensional stability and its resistance class 1 according to DIN standards. The perfect substructure for wooden terraces that should last a particularly long time and at the same time require a flat structure.
Advantages
✓ low installation height
✓ hand-sorted brand quality from BioMaderas
✓ Best outdoor durability
✓ Resistance class 1 according to DIN standard
✓ smooth planed surface
✓ Red-brown tropical wood colour
✓ FSC® 100%-certified, from sustainable forestry
✓ transparent Origin
✓ direct sales
✓ climate-neutral shipping
Wooden decking advice
| Requirement per square meter wooden terrace | approx. 2,5 running meters |
| spacing rows | about 50cm |
| Spannweite | 60cm |
The origin
The Cumaru substructure comes from one FSC® 100%-certified forestry north of the Peruvian capital Lima. Visit the forest in Peru and learn about the origins of cumaru wood.
OriginCustomer gallery wooden terraces
Visit our customer gallery and read the testimonials of our decking wood customers.
customer gallery
Shipping costs
Finger-jointed terrace wood
Finger-jointing is a tried-and-tested wood connection in timber construction, through which individual pieces of solid wood are put together to form a longer piece of decking wood. Wedge-shaped prongs on the ends of the pieces of wood interlock and are weatherproof glued together. This can be seen on the surface of the plank, but fades into the background with weathering and the formation of the patina.
Finger-jointing offers various advantages: the wood is less prone to warping and the tree trunk can be used more efficiently, which makes the product particularly sustainable and usually also cheaper.
Comparison of terrace wood
What our selected decking wood has in common: ✓ 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 power development
Tip: Floorboards should be sanded after weathering.
garapa
✓ smooth surface
✓ homogeneous, light color
✗ Ferrous substances lead to discolouration
✗ unbolted tendency to warp
Tip: Terrace cleaning removes discoloration and professional interim storage avoids warping.
jatoba
✓ smooth surface
✓ Rich color and grain
✗ unoiled tends to crack
✗ Colored ingredients wash out
Tip: Clean and oil decking after laying.
Teak
✓ best durability and dimensional stability
✓ Lowest risk of cracks and splinters
✗ relatively expensive
✗ no very long planks
Tip: Lay decking boards together.
Accessories for wooden terraces
Only work with accessories that have been tested and approved for use with this particularly resistant type of wood. Ask the manufacturer about suitability or choose products from our range that have already been tested for the specific application. You will find an overview of the accessories required for your terrace construction on this page grocery list. You will receive an individual and free calculation if you use our terrace planner use.
Recommended accessories
Discounts at Betterwood
At Betterwood you get 1% discount for every €1.000 worth of purchases, up to a maximum of 15%. You can calculate your expected savings here:
The discount will be displayed on the shopping cart page and deducted from your purchase.
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| Drying | |
| Durability according to DIN 68800-1 | |
| Durability according to DIN EN 350-2 | |
| Iron-tannin reactions | |
| bleed out | |
| Weight fresh (m³) | |
| Weight dried (m³) | |
| Bulk density (cm³) | |
| Compressive strength | |
| Span substructure flat TP | 60 |
| Span substructure upright TP | 135 |
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21x90mm, FSC 100%"
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Cumaru decking, FSC 100%
Price from: €70 per m2, resistance class: 1
Advantages: ✓ best durability ✓ particularly robust and scratch-resistant
Disadvantages: ✗ partly rough surface ✗ high power development
Tip: Sand the floorboards after they have been exposed to the weather for the first time.
Terrace wood
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