Build wooden terrace yourself - construction manual for wooden terraces

Building instructions for wooden terraces

Build wooden terrace yourself - construction manual for wooden terraces: wooden

A wooden terrace has long since in private gardens proven to be stylish, because the woods are decorative in nature. In contrast to gravel, paving stones or paving stones, they emphasize a warm atmosphere, but are associated with the purchase with higher costs.

A wooden terrace to build yourself is with our detailed, illustrated construction manual and some tips no longer a problem. For example, DIY enthusiasts can also build a long-lasting terrace made of wood and fasten the boards with a concealed screw connection or drill them down from above.

To keep her for many years is the choice of the right type of wood is crucial. That's why we explain which wood is best for terraces and how do-it-yourselfers protect it from the weather and fungal attack.

The right terrace wood

Before you can build your wooden terrace yourself, you have to choose a species of wood. There is no real and wrong wood, because the difference between the domestic needle and more expensive hardwoods is rather small. Beams and boards made of spruce or pine wood are relatively inexpensive and have the advantage that they are easy to work with. In addition, damaged parts can be replaced quickly.

For the construction of the terrace is In this country especially the Douglas fir popular, also called Douglas Fir. It is more resilient and comes from European forestry so you do not have to worry about tropical deforestation. In addition to wood, decking boards are available in other materials that combine the appearance of wood with the ease of plastic, concrete or ceramic. In addition to decorative aspects, it is important that the chosen wood withstands weathering and pest and fungal infestation. Which types of wood have a natural wood protection against fungi, regulate the Durability classes according to DIN EN 350-2:

durability classProtection against fungal attackSpecies
1very durableBilinga, Asian Teak, Robinia (1-2)
2durableBangkirai, sweet chestnut, European oak, mahogany
3moderately durablePine Pine, Douglas Fir and Larch (3-4)
4little lastingSpruce, pine, red oak, fir, red oak
5not permanentBirch, beech, ash, linden

If wood with a medium to low durability is used for the terrace, you should definitely use it treat with special wood preservatives.

Protection and impregnation for the wood in the garden

Build wooden terrace yourself - construction manual for wooden terraces: terrace

A coat of paint protects the wooden terrace from the weather

The wood for the terrace should be impregnated, after all, it is exposed to the weather all year round. Thus, it has to withstand sunlight, rain and high temperature fluctuations.

The ones used for the construction of the terrace Beams should already be pressure-impregnated before processing. The wood is impregnated in impregnating agent, which is pressed in for several hours under high pressure. In some woods, a protection against fungal attack, z. As blue stain, be applied as a primer. After completion of the construction work, you should oil the boards, varnish or paint with wood paint. With the right protective coating, the selected material can also be subsequently refined and its appearance changed.

More important than the optical protection of the wooden floorboards is the constructive wood protection for the entire construction of the terrace floor. This indicates which protective measures are required for the wood. Terrace wood falls into the 3rd or 4th hazard class:

hazard classUse of the woodwood protection
3Wood is exposed to the weather, but has no direct contact with the soilProtection against fungi and insects, wood preservative must not be washed out
4Wood has permanent earth contact and is exposed to the weatherProtection against soft rot, fungi and insects, wood preservative must not be washed out

A chemical wood protection is only necessary if the built-wood has no corresponding durability. Therefore, it is recommended to use wood species from those mentioned in the upper section To use classes 1 and 2 in order to avoid having to use chemical agents.

Another important factor of structural wood protection is the derivative of rainfall. For this purpose, the substructure of the wooden terrace should be built so that the rainwater drains, z. B. with a gravel layer. In this way you avoid waterlogging that permanently exposes the wood to moisture and begins to rot.

Tips for the substructure

The built-in wood should if possible do not come into contact with the ground and it must be well ventilated from all sides for it to dry quickly. Because moisture is the only thing that really harms the material. Therefore, a well-planned and carefully executed substructure with adequate ventilation is the alpha and omega. It should consist of several layers:

  • Sand bed with gravel for increased water absorption
  • Root fleece, prevents plants from growing through between the wooden beams
  • concrete slabs
  • Structural wood

The last boards are finally placed on the support timbers. To avoid waterlogging and premature rotting of the assembled wooden floorboards, a terrace substructure with support pads made of plastic helps. Positioned between the foundation and the substructure, this can be used to create constructive wood protection and thus extend the life of the terrace enormously.

Invisible screwing

Build wooden terrace yourself - construction manual for wooden terraces: wooden

With the cordless drill, the screws are sunk in the wood

In order to install the wooden floorboards just in regular intervals and concealed screwed at the same time, many dealers offer a simple connection system. Hereby also beginners achieve professional results. The linchpin of this system are plastic connectors that allow the planks to be screwed to the substructure.

So that swelling and shrinkage movements of the wood are compensated, these connectors have a predetermined breaking point in the middle. These Prevents torn screws or cracking in the wood while maintaining stability. In addition, they create the necessary distance between substructure and decking boards and thus ensure sufficient ventilation.

Using the drill aid and screw gauge, the connectors can be fixed in the same position and the board can be inserted into the previously installed hall. For the first and last row there are special connectors, with which do-it-yourselfers on the front of the substructure a clean conclusion of the terrace succeed.

Aligning the floorboards

When building the wooden terrace, the mounting clamp makes it easier fast and exact alignment of the wooden floorboards. Together with the spacers, which achieve six or eight millimeter wide expansion joints, a clean and even installation pattern can be achieved. In general, wooden planks with a width of up to 20 centimeters can be precisely aligned. Its maximum span is 45 centimeters and the maximum clamping force is 120 kilograms.

Instructions: build wooden terrace yourself

Build wooden terrace yourself - construction manual for wooden terraces: yourself

Picture 1: Measure slats for the substructure

For the substructure first a sand bed is created, which you should pull off with a slope so that the rainwater drains off. For waterproof substrates you need a coarse gravel layer underneath. After that, a root fleece is laid out.

Although this allows the water to escape downwards, it prevents plants from growing upwards. After that, the Measure wooden slats for the substructure and shorten to the appropriate length (Picture nos. 1 and 2).

Build wooden terrace yourself - construction manual for wooden terraces: yourself

Picture 2: Check the distance between the support beams for the substructure

The next step is the construction of the remaining substructure: Place the concrete slabs in a uniform, narrow distance Lay the plastic pads and wooden beams over them (picture no. 3). The beams should be pegged and screwed into the concrete slabs or fastened using the connection system described above.

Build wooden terrace yourself - construction manual for wooden terraces: construction

Picture 3: Arrange concrete slabs on the gravel bed

Pre-drilling the attachment points in the cover boards is recommended for all types of wood. - It is particularly important at Bangkirai, otherwise screws tear off and the connections can loosen.

Now arises the later tread: For this, lay the terrace covering at regular intervals (approx. 4 to 6 millimeters) across the previously dowelled beam substructure (Fig. Nos. 4 to 6).

Pay attention to one regular, straight alignment of the drill holes and a clean screw pattern, because the heads of the screws remain visible. Use stainless steel screws for the wooden terrace to prevent later rust stains.

Now lay one wooden plank after the other and fix it with a cordless screwdriver. Slowly the uniform terrace covering arises (Picture nos. 5 and 6). For the construction of a large wooden terrace you should plan about one day.

Once the terrace is built, it is a thorough wood protection important. After that, only the matching garden furniture is missing, because the wooden terrace can be used immediately after construction.

Build wooden terrace yourself - construction manual for wooden terraces: wooden

Picture 4: Attach tread to the support timbers

Build wooden terrace yourself - construction manual for wooden terraces: wooden

Figure 5: Small wedges provide the correct distance when screwing the boards with the support beams

Build wooden terrace yourself - construction manual for wooden terraces: yourself

Picture 6: The cover boards are laid one after the other

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