Cumaru substructure
45x70mm, FSC 100%

ab 9,55 

excl. Shipping
Expected delivery by: June 11rd

Substructure made from Cumaru BioMaderas

The finger-jointed substructure made of Cumaru for long-lasting wooden terraces of the highest durability. The Cumaru wood has been awarded the certificate FSC® 100% for controlled, responsible forest management.

FSC Cumaru substructure

Width 45 mm
Size 70 mm
Length 100cm to 400cm
Species Cumaru (Dipteryx odorata)
Origin Peru, FSC® 100% certified
Surface planed smooth on all sides
durability Class 1
Drying technically dried (KD)
application finger-jointed
Online patio planner laying plan and get offer
installation instructions terrace guide as PDF
Recommended accessories only tested material
Volume discounts Discount more blog posts
Item number: 3046-00 Category: Schlagwörter: ,


Cumaru is a wood that is becoming increasingly popular due to its highest durability and good properties. As a substructure, Cumaru impresses with its good dimensional stability, its resistance class 1 according to the DIN standard and its high static load-bearing capacity. The perfect substructure for wooden terraces that should last particularly long.

Cumaru substructure 45x70
Cumaru substructure wooden terrace


✓ 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
span flat 115cm
Span upright 180cm
calculator Planner Guides
Cumaru 120 mm, wood and design Simon Alber
Origin Peru

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.


Customer gallery wooden terraces

Visit our customer gallery and read the testimonials of our decking wood customers.

customer gallery
Cumaru Terrace Wittenberge
hardwood substructure

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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


FSC® code

6 Reviews for Cumaru substructure
45x70mm, FSC 100%

  1. René Bente (via Google) -

    Everything great! Super team and best truth!

  2. Holger Temmen (via Google) -

    Very friendly and competent advice! Timely delivery, just as promised. Super decking boards (Cumaru) and substructure. The floorboards were very straight and exactly 120 mm wide. The substructure and floorboards were always a bit longer (UK, for example, 5 cm) than indicated.
    All in all I am completely satisfied. Highly recommended !!

  3. Horst Hesselbarth (via Google) -

    Thanks to the really easy terrace planner, the very friendly advice and the good feeling of not having harmed the environment, an absolute A+ with asterisks. Since I bought Cumaru and the terrace will be fun for 1 years, the price is more than justified. Also for amateur builders, how strongly recommended….

  4. Daniel and Nicole (via Google) -

    First the positives: the goods were available very quickly and the planking was almost perfect: we didn't have to sort out a single board. Unfortunately, that didn't apply to the UK, where two beams were so bent that we had to dismantle again. (We could have noticed beforehand) What really annoyed me personally, however, was the delivery itself: 220 euros is no small matter, especially considering that you have to unload yourself. But I would have gladly paid for it if the delivery had been as sustainable as the wood... But the opposite was the case: the driver, who only spoke Russian/Polish (a very nice guy by the way) came from POLAND at approx 40 km away from us to load the goods and bring them to us (and then drive back to Poland) There was nothing on the truck except our goods. This is by no means ecological and therefore the price for the delivery was exorbitant in my opinion. I'd be happy to pay a higher price, but not when such ecological madness is being pursued. Nevertheless: the wood Cumaru) is great.

  5. Brigitte Fuchs (via Google) -

    I highly recommend this blade and this company. Mr. Jaeger was a very good advisor to us and patiently answered all of our questions. All agreements were kept. We are not very good craftsmen and despite the great help from Mr. Jaeger we got a very nice terrace. Thank you Mr Jaeger

  6. Thilo Heller (via Google) -

    Great quality, great team: 100% recommended.

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Cumaru UK 3045 data sheet
Data sheet (PDF)

Notes and application description for the Cumaru substructure from BioMaderas as a two-page PDF download.

Terrace Guide German
Installation instructions in German (PDF)

Our installation instructions will help you build your wooden terrace. Please read these carefully before installing the floorboards.

Installation instructions english (PDF)

Our installation instructions will help you with the construction of your wooden decking. Please read them carefully before installing the boards.

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