Construction of houses

Laying decking: step by step instructions

An excellent type of outdoor flooring is a decking. It differs from alternative options in ease of use, good anti-slip properties and excellent appearance. We will talk further about the varieties, advantages of use and the rules for installing a parquet board..

Table of contents:

Terrace board – characteristics and advantages

Terrace board is a finishing material used for outdoor installation, preferably on a terrace. Another name for decking is “decking”, although it is more often called garden parquet.

For the manufacture of decking, a wood-polymer composite is used, which helps to preserve its appearance for a long time.

If we compare a terrace board with an ordinary floorboard, then the requirements for the first one are much higher, since a terrace is a place located in an open space, and the influence of external factors on its decoration is much higher. The first requirement is the mechanical and chemical resistance of the boards, since the terrace is constantly exposed to moisture, sun, temperature drops or rough shoes.

The construction of the supporting structure of the terrace takes place at the time of the construction of the terrace itself, therefore, the overlap of a lagged nature has a long length, which directly depends on the boards to be installed. The most common type of decking is 5 cm thick.To relieve stress from the inside of the decking, several compensation grooves are placed on its inner side, and a small number of grooves are present on the outer side, the depth of which reaches two millimeters. Thanks to this, the surface will not be too slippery and will remain durable for a long time..

During the installation of a decking board, it is required to leave small gaps, therefore, its installation using the tenon method is impossible..

Decking is made from the same materials as flooring, only if it is made from pine, it is required to pre-treat it with special means that will protect the surface from external influences. It is preferable to choose species in the form of oak, larch, cedar or sequoia.

Particularly popular is decking, which is based on a wood-polymer composite, characterized by improved performance and durability of use – up to fifty years.

Terrace board photo:

Among the main advantages in the use of decking should be highlighted:

  • presentable appearance;
  • pleasant sensations while walking barefoot on the surface;
  • almost complete absence of slipping during precipitation;
  • the surface of the material is not able to heat up very much even during a hot sunny day;
  • environmentally friendly material (in case a wooden decking board is used).

There are two types of decking:

  • wooden;
  • wood-composite.

Among the advantages of the second option over the first one should be highlighted:

  • resistance to the appearance of mold or mildew;
  • resistance to all kinds of diseases and insects;
  • lack of susceptibility to temperature changes or the effects of solar radiation;
  • no swelling or drying out;
  • preservation of shape and color for a long time;
  • there is no need for constant seasonal care;
  • does not require painting or coating with the help of special products;
  • there are no defects such as knots, resin pockets or cracks;
  • there is no risk of getting a splinter;
  • installation of the coating is possible without leaving gaps, so the grass will not grow through the cracks, and the boards will not deform;
  • resistant to chemicals, abrasive detergents, alcohol, etc .;
  • possible combination with underfloor heating.

The main types of decking

In relation to the material from which the terrace board is made, it is divided into:

  • wooden;
  • thermally processed;
  • composite.

The first option involves the use of natural wood for the manufacture of boards. Larch decking is a fairly popular type of this finishing material. This type of wood has the properties of moisture resistance, density, anti-slip, resistance to fungus and mold. In addition, when the larch gets wet, it becomes stone.

When arranging decking, you should continue finishing in the same style as the whole house. Try to match the color of the home decoration with the terrace. Larch is characterized by a light tone. But, one of its advantages is the possibility of tinting. A large number of mixtures are presented on the construction market, with the help of which it is possible to paint a terrace board.

Thermally processed decking boards have slightly different properties than ordinary wood. The process of their production involves heating the wood to more than 190 degrees Celsius. With the help of steam, the characteristics of the wood are changed. Thus, it is possible to obtain a material that is highly environmentally friendly and does not contain harmful components..

Thermally treated wood differs from the standard one in higher resistance to moisture, good thermal insulation properties, resistance to decay, mold and mildew. In addition, the wood grain of the wood becomes clearer and more pronounced. Therefore, its color and pattern are pleasant to the touch..

Wood-polymer decking is an artificial material that is extracted using a combination of various types of fillers, fiberglass, sawdust, shavings, wood flour with resins.

For filling organic mineral fillers, a binder in the form of polyethylene, polypropylene or polyvinyl chloride is used. Possible application of grain starches, paper production waste. Coloring of this kind of decking is carried out during its production. In the process of combining all components, dyes are added to the thick mixture, which determine the color of the future polymer terrace board.

How to lay a decking: recommendations and location

Before proceeding with the direct installation of the terrace board, you should determine the place of its installation. It depends on the hardness of the material, if it is not indicated on the instructions or in the technical features, ask the seller about this criterion.

For example, for a balcony, loggia or in a place with low traffic, a medium density terrace board is laid. In addition, near the pool, where they mainly walk with bare feet, this type of boards is also used..

Please note that its moisture resistance depends on the density of the board, since boards that are too dense are practically unable to absorb moisture and are characterized by low evaporation. When laying a loose board in places with a high operational load, it deforms over time.

In places where there are a large number of people, it is necessary to install decking boards with a high density. These include plots near gazebos, houses or terraces..

The works on laying the terrace board are divided into several stages. First of all, a solid foundation is prepared, for the arrangement of which the top layer of soil is removed, and a sand and gravel cushion is laid, which is well rammed.

Do not lay the decking board directly on the base of the soil. It is possible to use paving slabs as the main element for installing a terrace board. In this case, a base of lags is laid on the surface of the tile, fixed with a screwdriver and dowels. The average interval between the lags is 35 cm, if the laying of the terrace board is longitudinal, then at least 45 cm. The lags serve as a support for the lags. Please note that 2 cm should be occupied by a technological gap, in the form of gutters or curbs. Installation of adjustable lags is appropriate when the terrain is uneven and has defects.

The total length of the place of laying should be characterized by the presence of a slope of one to one and a half percent of the total area. Thus, it will be possible to ensure the drainage of water during rains or showers..

After the completion of the preparatory work, the boards are directly mounted. For their installation, special secret fasteners are used, in the form of staples. For manufacturing, stainless steel is used, and fixation takes place using self-tapping screws. It is this type of fastener that helps to leave the desired gap of 0.5-0.7 cm in size.

Please note that the thickness of the decking has a significant effect on the distance of laying the logs. With a board thickness of 1.9-2 cm, the distance is 400 mm, if the thickness is more than 25 mm, then the interval between laying the log is 600 mm.

When cutting decking, the raw end parts are coated with a high-quality wax emulsion.

In the process of installation work, it is recommended to use stainless steel fasteners or specially processed self-tapping screws..

To prevent the board from cracking, holes for fasteners are made in advance. The deck board is attached to the surface in two ways:

  • open;
  • hidden.

The second option is less common, since it appeared recently and requires special skills to carry it out. Although it has a significant advantage over the open method of installation. This is a higher attractiveness of appearance. In addition, boards attached in this way are more firmly and reliably fastened.

Do-it-yourself terrace board

Before starting installation work, check the evenness, cleanliness and dryness of the surface on which it is installed. The best option is a platform made of concrete with a slight slope..

The installation of the lag is made in accordance with the water flow. When installing the decking, it is immediately laid on the logs, choosing the order of the boards. When installing a terrace board, in a place of constant exposure to moisture, it is necessary to provide for the presence of a compensation gap, otherwise it will not be needed.

Tip: Before starting the assembly of the entire structure, it is recommended to allow the board to acclimatize in the conditions in which it will be installed. To do this, leave the material at the installation site for two days so that it gets used to the humidity and air temperature..

It is not recommended to install terrace boards at low temperatures, as this will further affect the duration of its operation..

Take care of the presence of a ventilation gap under the space of the decking. Its size reaches three centimeters, thus it will be possible to achieve free space, which will reduce the risk of mold or mildew on the boards..

It is not recommended to install the deck board directly on sand, grass or ground. Requires a solid concrete base.

During temperature fluctuations, the board shrinks or grows in size, so a small expansion gap is required.

To install a terrace board, use:

  • lags;
  • terrace board;
  • initial brackets;
  • intermediate brackets;
  • screws, self-tapping screws;
  • plugs;
  • end finishing materials;
  • corners;
  • with an electric drill;
  • a set of drills;
  • a screwdriver;
  • measuring tape;
  • pencil;
  • saw;
  • level.

In order for the decking board to serve its owners for a long time, care should be taken to have good drainage under it. The best option is a concrete base, at least 10 cm thick.Before laying, you should make sure that water does not linger on the base, but flows freely along it.

If the logs are installed perpendicular to the drain, then between them, a gap is imperatively installed, providing an unobstructed drain.

If the decking is mounted on the roof, then you should make sure that there is a waterproof layer that is not capable of destroying the elements in the form of fasteners. When laying the terrace board on a flat surface, the grooves are cut at a certain slope.

Installation of decking – instructions for carrying out

The logs are laid on a concrete base and fixed to it with anchor bolts, the maximum step size is 400 mm. A compensation gap of 10-20 mm is required between the joists and the wall. If the vertical installation of the decking board is supposed, then the distance between the joists is 2.5 cm.The maximum laying step is 400 mm, when installing the decking board in places with increased operational loads, this value is reduced to 250 mm.

With the help of self-tapping screws, mounting clips are attached to the lags. A terrace board is installed in the groove base of the clip. If the terrace board is installed on the surface over a length of more than 800 mm, then the number of lags on which it is installed increases to three pieces. The end part of the board should not extend beyond the lag by more than 50 mm. The distance between the wall and the end section of the board is 10-20 mm.

When arranging a terrace using long boards, both ends of it must rest reliably on the surface of the log and be fixed on them with clips.

Corner joints are processed in two ways:

  • with the help of end caps – making the appearance of the board harmonious;
  • using end strips – fixed with self-tapping screws and made in accordance with a certain color of the coating.

In addition, it is possible to use a composite corner, similar to a skirting board.

At the end of all work on the installation of decking, take care of removing dust and chips from its surface. To clean the flooring, use a common detergent designed for use on floors. And remember that doing all the work correctly, the decking will function for a long time..