Wooden flooring in the country on the paths. How to make a wooden path with your own hands in the country. Material preparation and processing

Innovative surface leveling methods have been developed to optimize the pace of finishing and reduce labor costs. Quite a young innovation - adjustable floors provide a significant number of technological and consumer advantages to finishers and owners of premises. With their help, the preparation of a rough surface is carried out quickly, simply, ideally, which does not require professional skills from the performer.

Universal designs of adjustable draft bases are used for arranging premises of any purpose, area, configuration. For old buildings with not very reliable ceilings, for light country cottages made of wood or foam concrete, the opportunity provided by this technology not to load the floor with a multi-ton concrete screed is an impeccable option. For new buildings with low ceilings, this is an opportunity not to reduce the height of rooms that are not too pleasing with spaciousness.

Benefits of adjustable draft bases

Structurally progressive leveling systems of floors represent a solid dense flooring with mechanical devices by means of which the floor is adjusted in a horizontal plane. The main features of this technology:

  • Floor systems with adjustment devices are installed in a couple of days.
  • Strong adjustable floors can be installed by a person who is first engaged in flooring with his own hands.
  • A useful technological gap remains between the draft surface and the overlap, which increases the insulating qualities. In this space, you can lay communications, supplement the insulation with the laying of synthetic or mineral insulation.
  • The floor plane can be raised to a level of up to 20 cm, the thickness of the leveling layer can be reduced to 3 cm, it is possible to arrange a multi-level floor with one or more podiums.
  • Rigid fastening of the elements of the leveling system to the base made of concrete or wood is provided.
  • It is possible to refuse the underlay, which is traditionally used when laying parquet and a number of other types of floor coverings. This is another economic plus, cutting the cost of the floor by almost half.
  • Once the clean, dry installation of the adjustable bases has been completed, there is no need to delay the final finishing, such as waiting for the screed to fully cure.

According to experienced foreign users, adjustable floors will serve faithfully for half a century. The presence of a ventilated cavity will also exclude the possibility of premature “aging” of the floors, and the floor will not be damaged in case of emergency floods.

An additional layer of insulation can be placed between the lags

The floors arranged using this technology will not irritately creak, they will not warp, as is the case with the outdated adjustment of the floors according to the logs, which is done with the help of loose wood chips or sand.

Progressive systems supplied from abroad and manufactured by domestic enterprises are distinguished by another important advantage - affordable price, almost a third of the money invested in leveling can be saved by abandoning the cement-sand screed.

Perfectly leveled surface can be raised to any level

Two types of adjustable structures

According to the design features and the specifics of the application, adjustable floors are divided into two types:

1. Systems consisting of dense, durable chipboard boards, adjustable in a horizontal plane using special fixtures made of heavy-duty plastic. They are preferred to be installed in new buildings, as the leveling power of the slabs raises the floor surface to a minimum height of 3-5 cm. Despite the small size of the technological space under the raised floors, it is still possible to lay cables and thin insulating material.

Adjustable floor systems, plywood leveling

2. Practical floors on adjustable joists, the laying technology of which is similar to the standard device of a multi-layer cake with lag bars. The difference lies in the strong fixation of the elements to a concrete or wooden base and in the precise adjustment of the horizontals. This type of floor is used for arranging apartments in old buildings and luxury housing with the planned "underground" laying of communication pipelines and cables.

Adjustable floor, installed on the logs

One of the valuable priorities of these leveling structures is the reliable fixation of the entire system to a wooden or concrete base.

More precisely, threaded anchor devices are firmly attached to the base material, the rotation of which around its own axis allows you to increase and decrease the height of the subfloor level. Easy-to-install adjustable floor supports attach:

  • to wooden floor beams using self-tapping screws;
  • to concrete slabs hollow inside and to the surface with a concrete screed with polypropylene hedgehog dowels for brick and concrete;
  • to a monolithic concrete base floor with dowel-nails.

Anchor devices perform several functions simultaneously: they take on part of the load, provide adjustment and a strong connection of the structure with the ceiling.

Floor installation with leveling plywood

A distinctive feature of this technological option is that the bolts are inserted directly into the holes drilled in the plywood flooring, in the DSP board or in the gypsum fiber sheet. Here is the order of work:

  • from the back, bushings are inserted into the drilled holes, on the inner surface of which a thread is laid, the step between the holes depends on the expected load;
  • then, rack bolts made of durable polymer are screwed into the holes with bushings;
  • the assembled element is installed on the floor;
  • bolts are fastened to the base;
  • with the help of the rotation of the rack-bolts around the axis, the horizontal plane is aligned;
  • the remnants of the bolts rising above the surface are cut off;
  • then the next layer of flooring is overlapped.

The butt joints between the slabs of the first decking layer must not coincide with the location of the joints of the second layer.

Laying a draft adjustable plywood floor

On top of the leveled surface, laying of any type of finishing floor coverings is carried out.

Installation of floors with adjustable joists

Both types of leveling systems are produced by the company dnt: the adjustable floors that they supply to the market are a success. In the manufacturer's product list, you can choose a ready-made system for any design floor height, regardless of the type of base and the material chosen for the final finish.

The leveling systems produced by the company with lags are raised and lowered by rotating the pillar bolts.

  • anchor bolts made of heavy-duty polymer are screwed into the threaded holes in the logs;
  • logs with a step depending on the design characteristics of the floor are installed on the floors;
  • a hole is drilled through each anchor in a wooden beam or in a concrete mass, a dowel-nail or self-tapping screw is driven into the resulting hole;
  • logs are aligned by checking their position with a level gauge or laser device;
  • excess plastic bolts are cut off, the subfloor flooring is laid on top.

The complete set of structures prepared for installation is selected depending on the strength characteristics of the structure planned for installation. floor covering, from the distance between the lags and the cross section of the beam, from the power of the flooring.

Mounting adjustable log for laying the floor

Self-manufacturing of a regulating anchor

Basically, knowing design features, both leveling systems can be made with your own hands. Indeed, in a hardware store you can purchase all the components: flooring - thick plywood, GVL, chipboard; lags - ordinary wooden beam. It will be problematic to buy only polymer bolts with large threads. However, you can with my own hands make an anchor for an adjustable floor.

To make an analogue of the control device, the master will need:

  • driving anchor;
  • hairpin;
  • two nuts and washers;
  • metal plate.

The stud will act as a support bolt that is attached to the base surface through a drive-in anchor. The support for the beam will be a metal plate attached to the stud with a bolt and a pair of nuts. This nut will be used for adjustment. Another nut with a bolt is needed to fix the beam from above. In order for the upper nut not to subsequently interfere with the laying of the finishing material, a groove is made in the log from above. The excess hairpin is cut off after alignment.

By analogy, you can make a control device with your own hands

A self-made or bought at a hardware store leveling adjustable system will significantly reduce the budget for repairs or fine finishing in a new building. A quick clean installation will make it possible to eliminate wet, dirty and rather expensive processes.

The new technology involves the use of wooden logs or slabs (sheets of moisture-resistant plywood), which are supported by stand-up bolts screwed into them, usually made of high-strength plastic. Due to the rotation of the bolts around their axis, the height of the log or sheets changes, which allows you to accurately level the subfloor. After leveling the substructure, the bolt is rigidly fixed to the base with a dowel-nail. Moreover, the base can be either concrete (monolithic, hollow, base with a screed), or wooden (beam). Sheets of moisture-resistant plywood are usually laid on top of the logs, and any type of floor covering is already fixed on them - parquet, parquet board, laminate, linoleum, carpet, etc. In order to save money, massive boards are sometimes mounted directly on the logs.

Adjustable lags

  • Possibility of alignment from 5 cm or more (at no additional cost)
  • No risk of flooding neighbors
  • Nice warm floor
  • High sound isolation (required for home theaters)
  • Reducing the cost of communications (all types of communications, including electricity, can be placed under the floor)
  • No dirty and wet work

Adjustable plates

  • Mechanical leveling method (no risk of creaking or shrinkage)
  • Cheaper than concrete
  • No dirty processes
  • Possibility of phased assembly (if the apartment has furniture)
  • Completely cuts out impact noise that will disturb your neighbors
  • Assembly speed (from 20 m2 per day!)

System advantages

Such adjustable structures have a number of advantages. First of all they have advantages over concrete leveling. They are cheaper than a concrete screed if it is necessary to level the surface with a height difference of more than 3-5 cm. In addition, they allow you to save money when arranging a base for plank flooring (parquet, parquet board, laminate), because concrete preparation in this case will include not only a screed, but also a self-levelling mixture (do not forget also about the need to create plywood flooring over the screed, on which the plank floor will be laid).

In aggregate, the costs of such preparation will be higher than the costs of installing an adjustable structure. Not less than important point: concrete screed acquires the necessary strength within 28 days. While the installation of adjustable poles usually lasts less than a week, since one worker mounts an average of 20-25 m2 of adjustable logs or slabs per day. Moreover, according to VSN 9-94 "Instructions for the installation of floors in residential and public buildings”, the humidity of the screed should not exceed 5% in order to avoid deformation of the wooden floor. Note that European standards require drying of the screed up to 3-4%. It is a mistake to assume that it dries to this level in 28 days: this process takes longer than the curing process, and usually takes several months. There is no direct contact in the design of adjustable feet wooden elements with the base of the floor, and therefore, it is possible to lay logs on top of the concrete floor, and then plywood and parquet, without waiting for the concrete to dry completely. In the case of an overlap with high humidity, you can lay a plastic film on top of it, thereby cutting off water vapor, and then immediately start installing the log or slabs. Finally, the adjustable design allows air to move under the floor and thereby remove excess water vapor that can lead to warping and rotting of the wood. The inflow and exhaust of air is carried out due to the gaps between the floor and the wall of the room (from above it is closed with a plinth, but there is also a gap between it and the floor). The standard value of this gap is 10 mm. If you need to increase the ventilation of the space under the subfloor, then you can install decorative grilles in the floor in opposite corners of the room for additional air inflow and exhaust. We add that in regulated systems it is recommended to use only moisture-resistant plywood (grades not lower?) and logs from chamber-drying timber with a moisture content of not more than 12%.

Another advantage of adjustable structures is that they increase the sound insulation of the room: the floor is not monolithic, but contains an air layer in its “pie”, which dampens noise. In addition, plastic racks prevent the spread of noise. If it is necessary to significantly increase the sound or heat insulation of the floor (for example, in the premises of a home theater or basement), mineral wool slabs can be laid between the joists. The plates are laid on metal plates fixed on the logs. The thickness of the insulating layer can be varied, moreover, there is usually no contact between the slabs and the concrete floor (an air gap remains between them), therefore, in the case high humidity overlapping insulation will remain dry. The next point: height-adjustable structures make it possible to lay engineering communications (pipes with a diameter of more than 50 mm) and any wiring under the floor covering. Moreover, engineering communications will follow the shortest path, so there will be fewer connecting nodes, which means that the reliability of the system will be higher and the cost of its installation will be lower. One of the problems that arise during the operation of a wooden floor is creaking. Is it likely to appear in floors on adjustable joists or slabs? Experts say that with a quality installation of the system, there will be no creaking. It can occur when the floor elements do not fit tightly to each other, for example, when the bolts are screwed incorrectly or the plywood layers laid over the log are of poor quality. However, with qualified installation, all elements of the system are so firmly fixed on the base and interconnected that even a slight drying out of wood, according to experts, will not result in floor creaking. However, a knock on the floor is possible if the concrete base on which the logs rest is made with errors: for example, if the screed applied to the ceiling crumbles or cracks. Then it is recommended to remove a bad screed before installing the floor, as well as to correctly select the dowel-nail model for attaching the bolt to the base. We add that the maximum allowable load on adjustable structures is at least 3 tons per 1 m2. Their estimated service life is at least 50 years.

Assembly of the structure

If it is necessary to raise the floor to a height of 5 cm or more, install the design of adjustable logs. If the required lifting height is from 3 to 5 cm, then a system of adjustable plates (plywood) is used. Let's start with the first option. When installing the floor on a concrete floor, logs with a section of 45x45 mm and a length of 2 or 3 m are most often used. Their standard step is 30 cm between the axes of the bars. When laying the floor on a floor of wooden beams, logs of a larger section are usually required, the value of which is selected taking into account the step of the beams (as a rule, logs with a section of 45x70 mm are used). You can also vary the step lag. For each log there are 5 bolt-racks for which threaded holes are prepared at the factory. The length of the bolts is usually 100 or 150 mm: it is chosen depending on how high the floor needs to be raised. Installation of the structure begins with the fact that bolts are screwed into the logs, then the logs are laid out on the base with the required step, and holes for the dowel-nails are marked. Moreover, a gap of about 10 mm is left between the lags and the walls. Next, the bars are shifted to the side, holes are drilled to a shallow depth, the bars are returned to their place and the dowels are sunk through the bolts with a hammer and a doboynik into the prepared holes. After that, they begin to level the lag by rotating the bolts with hex keys (the bolts have a hex groove), using a level. Having completed the alignment, the dowels are hammered all the way into the base, and the protruding part of the plastic bolt is cut flush with a chisel. Then plywood flooring is mounted. According to the recommendations of the system manufacturers, the thickness of the deck should be at least 18 mm. However, some parquet companies recommend to arrange under parquet, solid board and flooring up to 30 mm thick with a lag step of 30 cm. Usually two layers of sheets are laid (overlapping the joint of the two lower ones with the top sheet) to ensure maximum rigidity of the structure. As a rule, plywood layers are fastened with self-tapping screws, however, when laying parquet, parquet companies recommend that the top layer be glued to the bottom one as well. A floor covering is mounted on top of the plywood.

In the case of floors on adjustable slabs and on logs without ready-made threaded holes, the installation technology is somewhat different. A hole is drilled in plywood or log, into which a plastic sleeve is inserted, which has a threaded hole. The sleeve is fixed on a log or plywood with self-tapping screws. Then a bolt-rack is screwed into the sleeve, after which the entire cycle of the above works is performed.
We add that there are other adjustable designs on the market. In particular, systems where metal rack bolts are used, and the adjustment takes place with the help of a nut screwed on them with a support washer. There are also systems with U-shaped metal brackets that “wrap around” the log from the sides and fix it with self-tapping screws. The bracket has a number of holes, and after alignment, the screws are screwed into holes that are suitable in height.

“Adjustable floors on logs or on plywood boards have obvious advantages over concrete leveling, if we are not talking about an abstract “concrete screed”, but about a base for parquet, parquet board or laminate, which includes a screed layer, a layer of self-leveling mixture and plywood layer. Adjustable structures are cheaper than such a base, especially when it is necessary to level the floor with strong differences in height. In addition, a concrete screed gains strength within 28 days, while the installation of an adjustable floor usually takes from 2-3 days to a week. In addition, engineering communications and wiring can be laid under the adjustable floor, and, if necessary, heat and sound insulation plates. However, in itself, such a floor increases the sound insulation of the room due to the air "cushion" between the floor covering and the ceiling, as well as through the use of plastic bolts-racks.

Technology Comparison

Character Adjustable floor under the board Adjustable floor for any finishing coatings, including logs + plywood for parquet) raised floor Rough concrete screed (primer, hydro-insulation, screed) Fine concrete preparation for parquet flooring (rough screed, leveling screed, FK plywood) Dry screed Knauf
Installation terms 30 sq.m., day 1 1 1 21- 28 from 31 1
The cost of material with work per m2 from 1200 rub. from 1350 rub. from 1450 rub. from 700 rubles from 1200 rub. from 1150 rub.
Base floor drop* Resp. SNiP Resp. SNiP Resp. SNiP Resp. SNiP Resp. SNiP Resp. SNiP
less than 19 19-20 from 38 from 70 from 80 from 40
Increased sound and heat insulation + + + - - +
Possibility of placing utilities in the underground space + + + - - +
Bearing capacity, kg per sq.m. from 3000 from 3000 from 1000 from 3000 from 3000 kg from 1000
Application area All types of premises All types of premises Comm. real estate All types of premises All types of premises All types of premises
Permissible floor height, cm 3-30 3-30 5-150 3-15 3-15 5-15
Application in wet areas Dry rooms Dry rooms Dry rooms Dry rooms Dry rooms Dry rooms
Preliminary floor preparation not required not required required required required required
Floor types for installation Any Any Monolith. blocked. Monolith. blocked. Monolith. blocked. Monolith. blocked.

The technology of adjustable floors appeared on the market relatively recently, but has already managed to gain popularity among builders, and good feedback by users. Why? The answer is simple - it has a lot of advantages. Among them are the following:

  • high flooring speed. One person can design up to 20 sq.m. in a day;
  • achieving the desired floor height without additional material costs;
  • the possibility of creating a multi-level structure;
  • almost perfect leveling accuracy. Tolerance 1 mm. per 1 p.m. gender;
  • reducing the load on the supporting structure. At the same time, the permissible load on the logs is up to three tons. This significantly exceeds the possible load not only in residential, but also in industrial premises;
  • eliminating the need to carry out a "wet" screed;
  • good ventilation and soundproofing characteristics of the floor;
  • opportunity to equip underfloor heating under plywood;
  • environmentally friendly, time-tested materials;
  • the ability to hide the wiring of electrical networks, hide pipes and at the same time provide free access to them if necessary.

To be fair, we note limitations:

  • the possibility of a squeak. In the event that construction debris has fallen into the attachment points. It, even at the installation stage, must be removed with a vacuum cleaner. At the same time, it should be taken into account that wood is a “living” material, it deforms over time. So get ready;
  • the possibility of "sounding" the floor. If the floor is raised too high - the emptiness under it will accompany you with a booming echo with every step. This shortcoming can be easily eliminated by applying heat-insulating materials.

However, as you can see, the advantages of an adjustable floor are much greater and getting them is quite simple. The technology is so accessible that building adjustable floor can do it yourself and no professional training. And this instruction We hope this will help you.

Before starting work, you need to decide on the design of the floor, as well as prepare tools and materials. But first things first:

Design

  • floors adjustable by slabs. Provide lifting height up to 5 cm;
  • floors adjustable by joists. Provide a lift height of over 5 cm.

In practice, both are used. But the first ones were the most popular. However, despite the different allowable lifting heights, the technology of their construction does not differ significantly.

Tool

The minimum tool that you will need to work on the construction of an adjustable floor consists of:

  • perforator;
  • screwdriver or screwdriver;
  • circular saw;
  • jigsaw;
  • chisels;
  • building level;
  • roulettes;
  • consumables, such as drills, discs, jigsaw files, drills.

Material

The amount of material depends on the size of the floor. But, for understanding, we will calculate the amount of materials for 5 sq.m.

For slab adjustable floors you will need:

  • plywood - 5 or 10 sq.m. Depends on the required number of decking layers;
  • self-tapping screw 3.5x35 - 150 pcs. For fastening plywood layers together;
  • threaded bushings - at least 20 pieces. They will play the role of wooden logs;
  • dowel-screw 6x60 - 35 pcs. For fastening the lag to a concrete base.

To arrange the floors on the logs, you will need: timber, section 45x45 - 14 m.p.;

  • plywood or osb on the floor - 5 sq.m. or 10 sq.m. - if double decking is planned. When calculating plywood, you need to add 5% for waste. Then, round up the amount of material to whole sheets;
  • dowel-screw 6x60 - 35 pcs;
  • wear-resistant polymer bolt 100 or 150 mm - 20 pcs. To adjust the height of the surface;
  • self-tapping screw 3.5x45 - 150 pcs. For laying the first layer of plywood on logs;
  • self-tapping screw 3.5x35 - 150 pcs. For laying the second layer of plywood on the logs;

Features of the choice of timber

As a log, a dried beam made of pine wood can be used.

Features of the choice of material

An important point is to choose the right material. Professionals recommend giving preference to plywood. This option can provide simultaneous floor insulation with plywood. To form one layer - the thickness of the sheet must be at least 18 mm. If there are two layers, it is permissible to use sheets with a thickness of at least 12 mm.

In work, it is permissible to use plywood grade 3/4. But the requirements for moisture resistance must be met. Permissible humidity is not more than 12%. What is achieved by using plywood brand FSF or FK.

Mounting technology

Consider two options

Option 1 - Floors adjustable by slabs

Such a floor is equipped if the surface is characterized by slight deviations from the level. And the ceiling is low. Those. there is a need to save every centimeter of height.

The installation process in this case is simple and consists of the following steps:

1. Cut plywood sheets into the required pieces. Lay them out on the floor and label them. In order to know exactly where which sheet will be located in the future.

2. Holes of the required diameter are drilled in plywood sheets. Bushings are inserted into them.

3. Sheets of the first level are laid on the floor surface

4. Sheets are attached to the floor with dowels.

5. Using the key, the floor height is adjusted by twisting the threaded bushings.

6. Be sure to use the building level.

7. All protruding parts (threaded bushings) must be cut off.

8. If a second layer of plywood is provided, it is laid on top of the first one and fixed with self-tapping screws.

When laying the second layer, it is important to follow the sequence of laying sheets. And ensure that there is no construction debris between them. To do this, the surface must be vacuumed.

The seams of the previous layer should not coincide with the seams of the next. Figuratively speaking, they should be placed like bricks, overlapping each other.

9. Flooring is laid.

Option 2 - Floors adjustable by joists

1. Drill holes in the log beam. The distance between them should be within 300-450 mm. The higher the load is planned on the floor, the more often the logs should be drilled.

2. The arrangement of the lag begins with the ends that are attached to the floor. Then the middle of the beam is attached. It is important not to immediately tighten the bolts to the end in order to be able to adjust them.

Please note that the control device can be made independently. For this you will need:

  • metal plate;
  • hairpin;
  • driving anchor;
  • two nuts and washers;

3. Logs are set according to the level.

4. The height of the floor is adjusted by tightening the bolts.

5. The protruding heads of the bolts are removed with a chisel.

6. Sheets of plywood are attached to the logs. The mounting method is similar to that described in the first version of the adjustable floor arrangement.

Conclusion

This approach to arranging floors is becoming more and more popular. This is due to the ease of installation, the relative cheapness of materials, the ability to do everything quickly and without the involvement of expensive professionals.

2 000 rub

  • 750 rub

  • 1 150 rub

  • 1 250 rub

  • 2 000 rub

  • 2 200 rub

  • 1 800 rub

  • 6 000 rub

  • 260 rub

  • 1 140 RUB

  • RUB 1,500 RUB 1,900

  • Professional installation of adjustable floors in Moscow and the Moscow region!

    We make an adjustable floor on anchors and polymer bolts!

    Sale of component materials for adjustable floors in Moscow and regions of Russia.

    We produce chamber drying logs for adjustable floors of any size 45x45, 40x50, 50X50, 50x70 up to 3 m / p.

    We will deliver to your object with fasteners ( plastic bolt, anchor rod) or for your fasteners. Pickup available from our warehouse.

    Adjustable video floors.

    Adjustable floor on merall anchors

    Adjustable floor with polymer bolts

    At the end of the 90s, Russian construction appeared adjustable floor technology. This one is completely the new kind foundations competed with concrete screeds, previously widely used in residential premises, apartments, and any buildings.
    Adjustable floors have such an advantage over concrete ones as simple and quick installation. They are used under the finishing floor of parquet, laminate or parquet board in modern buildings. As a result of official tests, it was possible to prove the durability of such floors. Their service life reaches 50 years, subject to proper use.
    This floor leveling technology has significant advantages over other methods of preparation:
    lack of dirt and water;
    the ability to regulate the floor within 6-15 cm and above;
    efficiency and manufacturability of the laying process, relative cheapness;
    high installation speed - 100 m2 in 2 days;
    alignment accuracy;
    relative lightness of structures compared to concrete, dry screeds, and, consequently, lower loads on floors.
    There are two types of adjustable floor structures, depending on the height of its rise. If it is required to arrange a floor with a height of 4 to 7 cm, then the floor construction will be used, adjustable plywood on the plate. Most often, adjustable plywood is used in new buildings. If a higher floor is needed or the differences are significant, then the design is used adjustable floors by joists . It is also used for floors on floor beams. Most often, regulation by lags is used to replace old floors with their dismantling.
    Adjustable floors help to eliminate significant height differences during the dismantling of the old floor, when the required level is high. For example, during finishing works the old flooring was removed, and the height between the required level and the resulting base does not allow resorting to other leveling technologies.
    The design of the adjustable floor along the lags is used for:
    floor installations in new buildings;
    restoration of plov in old premises;
    raising the floor to reduce the load on the floors;
    installation of a multi-level floor;
    hiding under the floor of electrical engineering and engineering networks.

    adjustable plywood ( ).

    Flooring with adjustable plywood.

    The reluctance to raise the floor high or the lack of such an opportunity may lead the owner of houses or apartments to use a new flooring technology - adjustable plywood.New buildings or apartments with low ceilings require a special approach. In such cases, it is inconvenient to use logs, and instead of them, take threaded anchor studs, install, fix them at the base of the floor slab. Sheets of plywood are put on the studs with advance drilled holes. For floors, special moisture-resistant plywood sheets with a thickness of 10 mm and dimensions of 1.5 by 1.5 m are used. As a result, we get plywood on legs, because the sheets are on anchor studs. These legs (studs) are attached to concrete floor. To adjust the height of the sheets, nuts with a washer are screwed onto the studs, unscrewing or tightening which leads to lowering or raising the plywood to the desired height until a flat flooring surface is obtained. In conclusion, a second sheet is laid on top of the leveled layer of plywood and fastened with a self-tapping screw. After that, you can proceed with the installation of the floor covering. Such a plywood base does not rise more than 7 cm from the level of the subfloor.

    The cost of an adjustable floor device consists of the volume of the room and additional work.

    • Similar posts