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Merbau wooden decking

Product code: ter-mer-21x140

Merbau decking,
size: 21x140x1800-4200 mm,
profile: both side smooth

Availability: In stock
75.57 €  / m² Price without VAT:
91.43 €  / m²
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Detailed Description

Merbau decking Masterdeck

Specie: merbau
Botanical name: Intsia bijuga
Origin: Indonesia
Size: 21x140x2100-4800 mm
Density: 850-1000 kg na 1m3
Natural durability class EN350: 1-2 
Certificate of legal origin: EUTR, Indonesian Legal Wood
Wood drying: KD
Usage: outdoor decking
Packing: loose on packets
Profile: both side smooth S4S, E4E

Specification points

About merbau wood

Merbau, the botanical name of Intsia bijuga, is one of the highest quality woody plants in the world with very good physical and mechanical properties. High weather resistance, durability, highly stable wood with a high content of oily resins, similar to Teak wood. However, merbau offers higher hardness, durability and stability.

Color and weathering

Light brown, reddish brown to dark brown with different shades. The color differences between the individual pieces of floorboards are natural and usual. The wood darkens in the air and changes color to gray-silver over time. The time of graying depends on the method of treatment, the location of the climate, the exposure of individual pieces to rain and other weather conditions.

Natural oil content

Merbau contains a natural dye that will leach out of the wood for some time, for example due to rain, in the form of a brown liquid. Therefore, avoid contact with plasters, bricks and other coverings or floors that could be colored. Drain rainwater through a pipe system or sewer, if the installation is carried out on floors or balconies. Use only special high-strength stainless steel screws for mounting. Avoid contact of wood with iron objects that create blue-black stains, as well as substances and objects that cause corrosion. Over time, this tree will show a change in the color of the gray shade due to UV sunlight. This phenomenon manifests itself equally in all tree species. If you want to restore the original color of the wood, use a professional Saicos dehumidifier (new window) according to the technical sheet. Then treat with a suitable protective oil paint.


Very low degree of volume changes of wood, very good stability, boards can show a medium degree of deflection of curvature, the need to use a wrench during installation, small growth defects. Necessity of pre-drilling holes for screws. Wood that is exposed to outdoor climatic influences changes in volume, dries out or swells according to climate change. There may be slight differences in width in the floorboards, due to the different expansion of the wood during moisture compensation between the radial and tangential growth of the wood. Furthermore, cracks can occur in the wood, also cracks, especially at the ends of the boards due to drying, changing depending on the relative humidity or changes in climatic conditions, small holes for wood-destroying insects. In addition, troughing and twisting can occur with wood. There are small golden veins in the wood, these golden capillary veins with a yellowish resin content are a characteristic feature of Merbau.

Knots and other natural features of wood

Knots and eyes, healthy or partially fused, cracks around the knots, marrow run-in, resin channels, marbling and other natural features are an integral part of the wood. Although tropical trees in particular tend to have a low number of knots, their number and the occurrence of the above traits are allowed.


When storing wood before and during installation, make sure that the wood is not exposed to direct sunlight, rain, snow or other external influences. It was well covered or best stored in covered unheated areas, with relative humidity values ​​equal to the outdoor humidity. At the same time, sufficient interleaving of the wood with spacers was ensured, enabling air ventilation and prevention of the formation of mold. Failure to follow these recommendations may result in twisting, deformation or other changes to the wood during storage.


Regularly clean the terrace from dirt, soil, sediment and pollen. This prevents macropore impurities from penetrating the wood. Under objects such as parasol stands, flower pots, bowls, mats, under which water and moisture settle, there is no possibility of fast and natural drying of the wood. Long-term moisture and dirt stains can form under these objects. Therefore, carry these objects standing on the terrace from time to time or ensure that there is natural drying and ventilation of the air under them. This will prevent the formation of dark spots on the wood.


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We will be happy to advise you on the choice suitable accessories.

We will show you our products before purchase in our warehouse. Wood is a natural material, each piece is a unique original. The supplied wood will be different from the displayed photos and samples.

Call us on +420 220 879 443

Payment options:

  • Cash or a card at the store
  • Cash on delivery (you pay when picking up the goods to the courier in the Czech area only )
  • By bank transfer (we will send the goods immediately after the amount has been credited to our account)