Outdoor leisure

With our wide range of products for outdoor use.

Moderne Holz-Terrasse mit Grünstreifen

OUTDOOR WOOD®, garden timber

OUT INTO THE GREEN!

OUTDOOR WOOD® | Garden timber

Hardly any segment in the DIY sector has grown so continuously and steadily in recent years as "garden timber". Whether classic terrace decking, privacy fences, tiles or raised beds. The decoration and optimisation of your own garden with wood is on trend like never before! No wonder - wood the most natural building material in the world, where does it fit better than in your own garden? As always, we have the right solutions in-house, everything from rettenmeier®.

 

Terrace decking

 

Design your "extended living room“ outdoors with terrace timber from rettenmeier OUTDOOR WOOD®. With selected wood species, which, due to their natural properties, are ideal for implementing ideas outdoors. Depending on the requirements, i.e. the different usage classes and desired durability (which reflects the "outdoor durability" depending on requirements), we offer different floorboards in a wide selection of dimensions and surface profiles for every project. In addition to untreated terrace decking in Douglas fir and European larch, our extensive range is rounded off by pre-finished timber (e.g. pressure-treated and heat-treated) in spruce and pine - always under the premise of sustainability. Make your dreams come true in wood with rettenmeier OUTDOOR WOOD®. (Assembly instructions here)

 

In addition to our terrace timbers, our range also features WPC (wood polymer composite) boards.

>> MORE ABOUT OUR WPC/GCC

Tiles

 

Ideal for modernising of a balcony system and terrace areas, not necessarily requiring an additional substructure (installation instructions here). In particular, our click tiles can be laid quickly and easily and provide the ideal basis for upgrading the surfaces in your outdoor area. The construction of our MADE IN GERMANY tiles mainly involves woods that are not offered for regular sale after the highest finishing level due to their cosmetic defects. Our value chain can therefore be extended by a further step. With regard to social responsibility, we have decided not to relocate our production to other European or Far East countries. Instead, we continue to work with disabled and life support workshops and see this not only as a social commitment, but also as an obligation, as one of the largest employers in our region.

In addition to our wooden tiles, our range also includes WPC/GCC tiles. 

>> More about our WPC/GCC

Construction timber

 

Made for use as a substructure for our terrace decking as well as for all kinds of timber constructions. We offer a wide selection of construction timbers to suit your requirements in a range of dimensions and processing stages as regards the finishing of our woods, but also the qualities according to your application requirements. To ensure that our value-added chain also performs as we envisage it from an ecological point of view, our construction timbers in spruce, pine, Douglas fir and larch are predominantly refined and shaped for your applications at our domestic locations. Build with wood, build with rettenmeier OUTDOOR WOOD®.

Screen

 

For many years, we have also been expanding our rettenmeier OUTDOOR WOOD® to include screens MADE IN GERMANY and to provide you with everything from raw materials to securing materials and we consider ourselves your system supplier. This means that not only can rely on our classic timber ranges, but you can, of course, also rely on our competence products, such as our privacy fences and fence elements. Everything is MADE IN GERMANY, everything from a single source, everything from rettenmeier®.

Exterior

 

Wooden walkways and raised beds - practical aids in everyday garden life. Make the most of your garden space with a raised bed. You can work in the smallest space, take care of your back and harvest much more, much sooner than with ground-level beds.

Our wooden walkway puts an end to walking in damp soil – create a stable walkway between your beds in minutes.

Accessories

 

In addition to our wood and wood-plastic products, our range also includes the necessary securing materials for installation and protection of our materials.

Wood care

Your guide to the correct handling of wood

Your guide to the correct handling of wood

Our usage and lifespan information:

The natural product of wood has specific properties. If you are familiar with them, this will help you keep your product in perfect condition for years to come. So take a moment to read through our general information and tips – it is worth it!

Effects of weather on timber

Outdoor wood

The possibilities for creative garden architecture and functional, attractive wooden structures are virtually endless. Wood can offer a long service life if a few basic rules are borne in mind. This includes the use of long-lasting species of wood such as Douglas fir and larch.

Their heartwood contains constituents that are toxic to pest organisms and so act as a natural preservative. Sun, wind and rain all affect timber used outdoors, with various consequences:

  • Decomposition of lignin
  • Washing-out of chemical compounds
  • Acquisition of grey patina
  • Bleeding of resin
  • Swelling and shrinkage
  • Twisting or splitting
  • Cracking of coatings

These natural timber reactions are acceptable and are not grounds for complaint.

As additional protection for our rettenmeier OUTDOOR WOOD® products, a maintenance coat is always advantageous. It reduces natural greying and cracking and increases resistance to weathering influences. 

Structural timber protection

Besides the individual species of wood selected and its natural durability, the service life of timber can be significantly influenced by structural timber protection. If wood is exposed to high levels of moisture for lengthy periods, it will be damaged by fungal decay. This can be prevented by the proper planning of structural measures to protect the wood at the execution stage.

Where possible, upright, load-bearing timber components should never come into direct contact with the ground. To protect against splashing water, it is good to maintain a minimum distance (elevation) of approx. 15 cm.

In horizontal wooden constructions, direct contact with the ground must also be avoided and a sufficient distance to the substrate must be maintained. To prevent water from collecting, terraces should always have a slight gradient of 2%.

 

Measures to extend the durability of wooden constructions

We now have a few practical recommendations which will length the life of your dream terrace and ensure many years of enjoyment in your new favourite place!

 

  • Always install terrace decking with a 2% gradient lengthwise in the direction of the profiling so that water can drain off
  • Use stainless steel screws that will not rust
  • Avoid direct contact with the ground
  • Prevent waterlogging
  • Minimise the contact area between the substructure and planking or use spacers
  • The joints between the planks and ends should be spaced 5-8 mm apart 
  • Do not carry out metalworking (cutting, grinding, etc.) on wooden terraces (iron oxide reaction).
  • Clean and maintain wooden components regularly (1-2 times a year, depending on weather conditions)

Proper fastening and surface treatment

Fastening timber components is best carried out using stainless steel screws that will not rust. When working with galvanised screws, the layer of zinc may become damaged. This can lead to corrosion and cause the wood to discolour. In addition, species of wood such as Douglas fir, larch or WPC, which are rich in tannin, react to contact with iron, with the timber becoming darker.

Wood used outdoors is permanently exposed to the weather. UV radiation and rain affect the surface. This brings about changes in the chemical composition of the timber, causing constituents to wash out. The timber turns grey in the course of a natural process. Surface treatment with suitable coatings can offer a relative degree of protection from moisture and UV rays. Wood has to be painted regularly – at least twice a year – to maintain the appearance and effectiveness of the coating.

Use classes for wood and wood-based products according to DIN EN 335-1

The service life of wooden components used outdoors can be significantly increased if the issue of wood preservation is considered at the design stage. Otherwise, a component's useful life may be greatly affected by local conditions (high level of ambient moisture, permanent or occasional contact with water, lack of rear ventilation, etc.). On the other hand, favourable installation conditions can also considerably increase service life by, for example, preventing contact with soil or providing cover. Terrace coverings made from wood – especially coniferous wood – are generally not suitable as barefoot boards. The surface quality in later use largely depends on the factors specific to the particular wood and species of wood.

 

Usage classes in accordance with DIN EN 335-1

Class Conditions for use   Durability class required
1 No direct contact with the ground, timber component covered, fully protected from the weather No moisture (furniture, interior components) 5 to 1
2 No direct contact with the ground, timber component covered, fully protected from the weather Exposed to high level of ambient moisture; occasional, non-permanent moisture (internal components in wet area, external components without direct exposure to weather) 3 to 1
3 Timber component exposed to weather, no contact with the ground Frequent moisture (external components exposed to weather, no contact with the ground, internal components in wet area) 2 to 1; 3 poss. pressure-treated
4 Constant contact with freshwater or ground Constant moisture (timber components partially or fully in the ground or water) 1; 2; 3 pressure-treated
5 Constant contact with seawater Constant moisture 1; 2

Durability classification

When it comes to the resistance of heartwood to wood-destroying fungi for timber components in contact with the ground, there is a classification system which offers our customers a good overview of the service life for selected species of wood and their modified products.

The information provided is merely a guide to life expectancy under temperate climatic conditions for the individual classes in relation to each other. It is not possible to provide exact values for any specific service life as this greatly depends on local conditions and the measures taken to protect the wood. This therefore does not constitute any guarantee or warranty on our part.

 

Durability of wood/wood modifications (classes based on DIN 350-2)

* Not listed in the standard; practice-based classification by professional institutes.
Class 1 Class 2 Class 3 Class 4 Class 5
excellent durability good durability durable low durability no durability
> 25 years 15 - 25 years 10 - 15 years 5 - 10 years < 5 years
  Pine Thermowood* Douglas fir    
  Artwood®* Larch    
  Teak pressure-treated pine* Grey pressure-treated pine*    
  Green pressure-treated pine*      

Flaws

Our solid wood products are subject to strict quality criteria (in accordance with the "Tegernsee customs"). Depending on the species of wood, individual timber profiles may display a natural range of colours. This varying range of colours gives the product a vibrant appearance and underscores the natural, individual nature of wood. This is not a sorting criterion.

Natural weathering influences, such as sun, moisture and UV radiation, have different effects on the wood, depending on its species. Cracks may form, but these do not have any influence on durability. Splitting is a natural characteristic of wood and not grounds for complaint.

The quantity and size of knots will vary depending on the species of wood, origin and growth-related influences. These are not faults, and their quantity and size is not limited. Individually knocked-out edge knots and cracks in the area of the knot cannot always be avoided and have no influence on the durability of the timber. The same applies to colour-treated timbers. Wood is a natural, "working" material. Therefore, under the influence of ambient moisture, dimensional changes to the timber profiles may occur in the thickness and width (up to 10%). This behaviour is known as "swelling" and "shrinking" and should be taken into consideration in planning.

The profile and plank dimensions stated are calculated dimensions, which, in terrace construction, can vary from the actual dimensions by up to 5 cm in the length and up to 1 cm in the width.

In naturally grown materials, moderate, and in isolated cases, severe warping may occur. Ensuring the correct distance from the substructure may counteract warping. Terrace decking that is already warped may be "healthily trimmed". You can reduce warping by cutting the decking on site. Not every plank can be free from warping in its entire length. 

Artwood®

We market our "WPC range" under the ARTWOOD® product brand. Terrace decking and construction timber MADE IN GERMANY. Primarily our response to the processing of tropical timber, as it is more durable and far easier to maintain. In addition to our classic WPC hollow chamber boards (wood polymer composite), we also carry solid GCC terrace decking (German compact composite) made of a German-manufactured material consisting of approx. 75% coniferous wood chips and 25% fresh plastic and additives, as well as stone meal and GRP glass fibre plastic made up predominantly of nationally processed elements from the technology of eco electricity generation. The production process as well as the composition of the materials is as yet unmatched worldwide (there have been attempts to copy worldwide, in particular in China). It is sustainable and recyclable. Here, we clearly see responsibility for ourselves, our children and their children.

 

Our innovative terrace decking system

Our innovative terrace decking system

Artwood® in an innovative terrace decking system comprised of up to 75% wood chips from German forests and about 25% high-tech polymers. Special additives make it suitable for permanent use outdoors. Quality MADE IN GERMANY.

Artwood® terrace decking is available as WPC planks with integrated hollow chambers, or as solid GCC planks.

The advantages

  • High resistance – More resistant to insects and fungus than most types of lumber
  • Non-harming – free of ingredients that are harmful to health
  • Very hard surface – highly robust against scratching due to dense wood content
  • No dangerous splintering – ideal for bare feet
  • Does not grey like wood – no need to oil the surface
  • Material is coloured throughout – no noticeable contrast of colour in the event of scratches or other damage
  • Brushed surface – inhibits slippage, even when wet
  • Processed simply – like typical wood
  • Homogeneous terrace deck – invisible connections using clip system
  • Ecologically sound – 100% recyclable

Durability classification

When it comes to the resistance of heartwood to wood-destroying fungi for timber components in contact with the ground, there is a classification system that offers our customers a good overview of the service life for selected species of wood and their modified products.

The information provided is merely a guide to life expectancy under temperate climatic conditions for the individual classes in relation to each other. It is not possible to provide exact values for any specific service life as this greatly depends on local conditions and the measures taken to protect the wood. This therefore does not constitute any guarantee or warranty on our part.

 

Durability of wood/wood modifications (classes based on DIN 350-2)

* Not listed in the standard; practice-based classification by professional institutes.
Class 1 Class 2 Class 3 Class 4 Class 5
excellent durability good durability durable low durability no durability
> 25 years 15 - 25 years 10 - 15 years 5 - 10 years < 5 years
  Pine Thermowood* Douglas fir    
  Artwood®* Larch    
  Teak pressure-treated pine* Light brown pressure-treated pine*    
  Green pressure-treated pine* Grey pressure-treated pine*    

Colour development

Our Artwood® products are an innovative composite material consisting of natural wood fibres and are subject to colour darkening due to the weathering of the brushed surface.

This colour darkening always takes place under even weathering of an area or product according to the corresponding development process:

Artwood® products have a bright gloss colour when new. The processed piece of wood will darken during the first weeks from a slight yellowish shimmer to an exquisite deeper shade.

The duration of the colour maturation depends on UV exposure and weathering.

Please ensure that the terrace decking is installed in the direction of brushing (installation arrow); otherwise the orientation of the fibres may cause a different surface effect (lawn mowing effect).

Colour development

Picture 1: after assembly, Picture 2: after 1-2 months, Picture 3: after 3-4 months

 

Example images of natural colour darkening after installation. 

Cleaning and wood care

Regular cleaning of the Artwood® terrace decking minimises permanent deposits such as pollen, dust or organic substances.

We therefore recommend thorough cleaning of the terrace at least twice a year and more frequently if necessary as follows:

  1. Sweep dry, loose dirt from the terrace deck.
  2. Soak the entire terrace decking with sufficient tap water and keep moist for at least 15 minutes.
  3. Clean the deck with a brush or scrubber. If there is a high need for cleaning, use a surface cleaner with a rotating brush.
  4. Rinse thoroughly with clean tap water.

Please note that the outdoor temperature during cleaning should be at least 15°C!

Our Artwood® terrace decking is open-pore and has a brushed
surface to ensure slip resistance. The rougher and brighter the finish, the more sensitive it is to normal environmental dirt. You can keep your terrace decking looking smart by cleaning it regularly. Sweep your terrace decking regularly with a hard brush, and clean the entire terrace with a WPC cleaner at least twice a year.

 

Care

Artwood® terrace decking does not need any additional care beyond normal cleaning when used outdoors in areas without cover. Here, the prescribed incline (2%), UV radiation and rain are usually sufficient to remove stains on the terrace deck. This is not effective on roofed terraces or terraces without a sufficient incline, which increases the need for cleaning. In this case, we recommend treating the terrace decking with WPC oil for better protection against stains.
 

Cleaning instructions

Picture 1: First wash, Picture 2: after 7 days, Picture 3: after 14 days

 

Example images of the colour change after cleaning. 

Potential uses for Artwood® WPC and GCC

It is essential to install WPC hollow chamber planks at a minimum 2% gradient so that permanent damage does not occur (cupping, dimensional changes
or cracking due to frost).

If a gradient of at least 2% is not possible, only GCC decking should be used.

 

Possible applications for WPC

Terrace shapes WPC hollow chamber plank GCC solid planks
Rectangular terrace with a gradient of at least 2% Installation possible Installation possible
Free-standing, rectangular terrace, without gradient Installation not possible Installation possible
Pool borders, without gradient Installation not possible Installation possible
Path design, without gradient Installation not possible Installation possible
U-shaped terrace Installation not possible Installation possible
L-shaped terrace Installation not possible Installation possible

Natural fibre inclusions (phloem)

Artwood® products consist of up to 75% wood fibres. Depending on the raw material, this may lead to low-level inclusions of other natural fibres such as phloem (transition layer between bark and wood). These will largely disappear through abrasion over time as the terrace is used.

Water stains

Due to constant weathering, these rarely occur on a sloped, uncovered deck. They are more likely to form in the transitional area between the open space and the canopy or in the areas under the drip edges. Water stains cannot be completely prevented there and can usually be removed with water and conventional cleaning equipment. Over time, the absorbent nature of the Artwood® terrace decking will be lost, and the stain sensitivity will decrease significantly. 
 

Contact

sortimentimg
Roland Deeg

Roland Deeg
DIY Sales Management | Do it yourself

+49 9853 338-456 deeg.roland@rettenmeier.com