Lining which grade is better

Lining is the perfect finish for any space. With its help, you can emphasize the natural beauty of the interior. The warmth of wood will make your home cozy. Wooden walls will emphasize the unity with nature. Someone says that these are relics of the past, but they are not.

Content:

• Views
• EXTRA
• Grade A
• Grade B
• Grade C
• Comparison

When choosing and buying this material, you need to pay attention to the class of the product. Choosing the right kind of lining will help you save money when decorating your premises.

So, if you want to use this material to decorate the utility room, then it is not at all necessary to buy an expensive one. In this case, it is advisable to take category B or C. It is impossible to answer which grade of lining is better, without having an idea of ​​\ u200b \ u200bthe area of ​​its application.

Views

The difference between varieties is primarily based on the presence or absence of external defects. All products are manufactured using the same technology. Separation occurs after sorting. Read more in the article - types of lining from A to Z.

In total, according to GOST, 4 types are distinguished:

• Premium or Extra (premium grade)
• Class A (1st grade);
• Class B (grade 2);
• Class C (grade 3).

Video - how you can be fooled when selling:

Lining of class "Extra" or "Premium"

This category has the highest price. On visual inspection, you will not notice any defects. Without a hitch - it's about her. Typically, these webs are produced by splicing.

If this method was not used, then it would cost fabulous money, since very few ideal boards are obtained from a single piece of wood. This material is smooth to the touch. You will not notice any knots or chips.

Manufacturers often vacuum pack it. This is done to reduce the risk of chipping and deformation during transportation. This type is considered elite. They are not ashamed to sheathe the rich interiors of a country house. Fasteners are usually sold in the kit. To you you will not need to adjust it during installation - it will fix perfectly.

When buying, do not trust the manufacturer's inscriptions. Check the category by personal inspection. If the seller refuses this request, it is better not to take it, as he knows about the trick. It also happens that perfect boards are placed on top in the package, and lower quality ones are hidden inside.

When mounting, use only special fasteners so as not to damage the material. Varnish is the perfect finish for this category. It will allow you to further reveal the beauty of the tree and emphasize its undeniable advantages.

Lining class A

It is in many ways similar to its more expensive brother. GOST determines the type of lining, therefore, comparing products from different manufacturers, you can see discrepancies in the quality of production.

Class A finishing material for some, sometimes better than the Premium category for other manufacturers. In this case, focus on the appearance of the product.

It is distinguished by a small number of defects... There are no knots falling out. If there are cracks, then they are not through and occupy an insignificant percentage of the total volume of the board. The core takes no more than 20%.

There should be no rot or blue on such a product. Black knots are also not allowed.

This type is used for front finishing work. Defects do not need to be shaded with paint. An excellent option for decorating it is varnish.It emphasizes the natural "shapes" of the product. Oils and wax will also work.

Premium and Class A are the grades of lining that are most suitable for finishing residential premises.

Class B

Manufacturers still use the name 2nd grade. This product contains visible and significant defects.

In this category, unevenness in the locking part (at the end) is permissible. Although this does not really interfere with installation.

Size of defects (chips, dents, gouges and cracks) should not exceed 3 cm by 60 cm running meter... On the finished product, you can find blueness (the value should not exceed 10%), resins, knots and core.

However, cracks should not be through and protrude into the butt end. Most of the defects are of a factory nature. Slight rot (no more than 10%) and wormholes (no more than 3 per linear meter) are possible.

In order to make the marriage less noticeable, special grouting and painting are used. The latter is preferable in dark tones.

This option is considered the most budgetary. It is available to a wide range of people.

Class C

This option is the lowest quality and, accordingly, the most affordable.

Scope of application - rough work and utility rooms. Requires a large fit during installation and the difficulty of painting to tidy up the surface during finishing.

The percentage of defects on the surface is off the charts. They also include falling out black knots, through cracks, chips, remnants of the bark and core.

Some manufacturers classify frankly defective products in this category, although according to GOST this should not be. A rare specialist will agree to work with such material. During installation, great efforts will be expended to eliminate imperfections that make up most of the surface.

Comparative characteristics

Here are the varieties and description of the lining:

	Extra	BUT	IN	WITH
Knots	Not allowed	Light knots are possible if they are healthy and do not fall out. No more than 1 per running meter	Healthy knots in any quantity. If dropped, then no more than 1.5 cm in diameter and no more than 1 per running meter	Unlimited
Cracks	Not allowed	Not end-to-end	Not end-to-end	Any
Core	If only in very small volumes (3-5%)	No more than 20%	Allowed	Allowed
Rot	Not allowed	Not allowed	No more than 10% of the total area	In any size
Wormhole	Not allowed	Not allowed	No more than 10% of the total area	Allowed
Resin pockets	Not allowed	Length no more than 5 cm	Allowed	Possible

Lining cost

The price in different cities and from different manufacturers varies. Here is the average value for each category. The cost also depends on the wood used. The table shows the values ​​for 1 square meter of a product with a length of 2-3 meters. Currency - rubles.

	Larch	Aspen	Pine	Linden
Extra	690	470	450	990
BUT	500	350	300	600
IN	350	300	230	500
WITH	200	180	180	300

Video - how to choose material:

Before buying a lining, decide on the room to be finished. With the Premium category, you can create royal mansions from an ordinary house, but will the price be affordable for you?

Whichever category you choose, wood trim will delight you with its warmth and comfort for many years.

The lining has long been one of the favorite finishing materials. Thanks to her, cozy, warm and original interiors are created.

What is lining

Lining is a long planed board. It has a groove and tongue for mounting. The material is environmentally friendly as it is made of wood. The characteristics are close to those of wood: durability, ease of installation, high-quality sound insulation.

Used lining for interior and exterior walls, ceiling. In addition, it can be used for the construction of terraces, gazebos, baths. Thanks to its good noise absorption, it is even used to sheathe walls in cinemas.

Currently, there are several types of lining:

• Ordinary (also called "Euro lining") - has special grooves on its surface, which are necessary for ventilation.

• American - resembles a bar made of wood. This type is attached only in the horizontal direction. It is usually used for exterior decoration of buildings.

• Block house - imitates a round bar.

What lining is made of

The traditional material for the manufacture of lining is wood. Various species are used, both coniferous and deciduous.

Among conifers, the most common is pine. Spruce is also used, but much less often. This is due to the fact that the spruce has a loose structure.

All types of pine lining are suitable for indoor use and exterior wall cladding. But in some rooms (for example, a steam room in a bath), such material is not recommended. But spruce lining is resistant to moisture and the appearance of mold, so it can be used in places where moisture can get in (baths, balconies, open terraces).

From deciduous, alder, ash, maple, aspen, linden are used. A little less often walnut and oak. as well as premium wood species can be purchased online on the website. The goods are delivered across the Russian Federation in shrink wrap. Elite species are made from larch. Linden and alder wood never heats up and does not burn the skin, regardless of the air temperature. Therefore, they are often used for wall cladding in steam rooms of baths and the construction of shelves there.

Recently, lining made of other materials (for example, plastic) has also been produced. Such a building material is conventionally called "clapboard" due to the presence of a "groove-comb" fastening system.

Lining grades

The lining is produced in accordance with the standards defined by GOST and TU (technical specifications). If GOST is common for all enterprises, then TU is developed by each manufacturer independently. That is why it is difficult to divide the lining into separate types. Each manufacturer may have their own.

The quality of the finished material depends on the quality of the selected raw materials. Therefore, the basis for dividing the lining into grades is chosen such characteristics as the presence of knots and resinous pockets, the blue of the raw material, existing cracks, etc. Depending on this, the following types of lining (or classes) are distinguished:

• Variety "extra" (also called "superior" or "premium").

• First grade (class A).

• Second grade (class B).

• Third grade (class C).

Products of various grades are manufactured using the same technology. Their division occurs after sorting, since the varieties of the lining differ only in the existing external defects.

Extra grade

Such a lining ("extra" grade) is distinguished by the complete absence of any defects. There are no knots, no cracks, no chips on it. Most often, this variety is made by splicing. This is due to the fact that it is very difficult to make perfect boards from a single piece of wood. Their number is very small. This variety is considered elite, it is used to decorate the interiors of wealthy country houses.

Accordingly, such a lining has the highest price - the highest grade. For its safety, manufacturers often pack it in a vacuum. Thus, they reduce the likelihood of damage (chips, deformations) on the product during transportation and storage. The kit usually includes special mounting hardware. The premium lining does not need to be adjusted, it will fit perfectly. During installation, you need to be careful not to damage the surface of the material, which is covered with a protective varnish. The lacquer coating further emphasizes the beauty of the wood.

When buying, you need to be careful. To avoid deception, visually inspect the material. Do not trust only the inscription on the label. There are times when there are perfect boards on top of the package, and lower quality on the bottom. Sellers who are confident in the quality of the material will not obstruct inspection.

First grade

In terms of its characteristics, the clapboard is comparable to the class A clapboard. Grade 1 from some producers is often better than the highest from others. This is due to discrepancies in the requirements of technical conditions during production. Therefore, in such situations, you need to focus on the appearance of the material.

The differences of the first grade of lining are in the absence of dropping knots and through cracks. Small and necessarily blind cracks occupy an insignificant part of the boards. The absence of blue, rot and blackheads is also characteristic.

The knots that are on the material must be light, healthy and not falling out. Their size does not exceed 1.5 centimeters in diameter. Loose knots should be healthy, intergrown and no more than 0.5 cm in diameter.

Cracks are allowed up to 9.5 cm long. They are necessarily not through, not plast, and go to the end of the board.

Defects in a product of this class do not need to be hidden. It is enough to treat the surface with decorative varnish (oil, wax), which will emphasize the natural lines of the wood.

Larch lining (grade 1, like the highest), is perfect for interior decoration of residential premises.

Second grade

Such a lining (grade 2) is characterized by the presence of visible defects. There are dents, cracks, chips. But their size does not exceed 5 cm per 1 linear meter of the board. On the surface of the product there is blue (up to 10% of the volume), knots, resin, core. At the ends, it is permissible not to do it, which does not interfere with the installation.

Knots do not exceed two centimeters in diameter, their number is up to one per running meter of material. If the knots are black, their diameter should not exceed 1.5 cm. Rotten and falling out knots are not allowed.

Reservoir cracks, extending into the end, with a length not exceeding a third of the entire length of the board, are acceptable. Through cracks - no more than 30 cm in length. The length of the seam through cracks is no more than 15 cm with a width of up to 1 mm.

Places with blue, coloring, pitching are allowed, one per board, if their size does not exceed 10x20 cm.

Most of the defects are formed during the manufacturing process. Existing cracks should not be through or extend to the end of the board. Rot up to 10% and a wormhole (up to 3 per linear meter) are possible. For this grade, any defects are permissible that will not interfere with the installation of the material.

The existing imperfections are usually hidden by grouting and painting in dark colors.

This class of lining is a budget option suitable for most of the population.

Third grade

For certain rough work and finishing of utility rooms, lining is also used. Grade 3 is the most suitable option. Low product quality explains the minimal cost.

During installation, the lining of this class must be adjusted and painted in order to hide serious surface defects. These can be knots falling out, through cracks, pith, remnants of bark, chips. Material defects take up most of the surface.

Comparative table of lining by grades

The distinctive characteristics, thanks to which the varieties of lining are distinguished, are most conveniently compared using a table.

	Variety "Extra"	1st grade	2nd grade	Grade 3
The presence of knots	Unacceptable	Up to 1 healthy, light-colored and captive knot per 1 running meter	Healthy people are acceptable. No more than 1 drop (up to 1.5 cm in diameter) per 1 running meter	Allowed
Cracks	Unacceptable	Allowed (not through)	Allowed (not through)	Allowed
Core	3-5%	Less than 20%	Allowed	Allowed
Rot	Unacceptable	Unacceptable	Less than 10%	Allowed
Resin pockets	Unacceptable	Less than 5 cm	Allowed	Allowed
Wormhole	Unacceptable	Unacceptable	Less than 10%	Allowed

Price differences between the varieties of lining

Differences in the quality of the material and the presence of defects lead to differences in the prices for the lining. Planks of the same type may differ in cost. This may be due to the way in which the material was dried.Conventionally dried board has natural moisture, it is heavier, but almost half the price. The material that has been dried in the chamber (it is lighter) is more expensive.

So, pine lining of class A, dried in a chamber, costs about 200-450 rubles per 1m2, and dried naturally - 130-300 rubles. Dry material from pine grades B and C will cost 180-350 and 140-250 rubles per 1m2, respectively.

The price for larch lining is approximately as follows (per square meter):

• The highest grade - 1200 rubles and more.
• First grade - 550-900 rubles.
• Second grade - 400-750 rubles.
• Third grade - 330-600 rubles.

The lining, regardless of the type, is a beautiful and environmentally friendly material that is easy to use in work. But when choosing the necessary material in the store, you should be careful. It is better to spend a little time checking the purchased products, whether they correspond to the declared grade. Otherwise, you might be wrong. This will affect the aesthetic features of the room, which will not look exactly as planned.

 

Lining is one of the most common cladding materials in modern construction. At the same time, metal or plastic is used for outdoor work, and natural wood is usually used inside. However, the properties of the natural material do not allow making identical products, which leads to the emergence of such a concept as the variety of lining.

They differ significantly in their technical characteristics and have their own tolerances and parameters.

Dining room made of "Extra" class lining

Types of varieties

Currently, the classification of the lining is made in accordance with certain data, such as:

• knots;
• cracks;
• resin pockets;
• pitching;
• core;
• germination;
• color;
• rot;
• blue;
• wane;
• worm-hole;
• manufacturing defects.

Advice! It is necessary to be able to distinguish between different grades of this material in order to avoid deception and to choose a quality product for its real cost.

Lining of class "A"

These items must be completely free from manufacturing defect. The only thing that is permissible is surface roughness, but only in a small amount.

Also, grade A lining should not contain:

• wane;
• wormhole;
• blue;
• rot;
• germination.

The color of the material should not be more than ten percent of the total area. In this case, cracks and resin stones are allowed only insignificant and not through. The knots of the material should not fall out, and their diameter should not exceed 15 mm. Black knots can be present in this class of wood only if their diameter is not more than 7 mm.

Lining cutters and their use in interior decoration - read here.

Example of class "A"

Lining of class "B"

Class B lining allows the presence of a significantly larger number of defects and damages. One of the most important differences of this type is the admissibility of unevenness at the end of the locking part. However, this should not interfere with the build.

Minor chips, cracks, cuts and dents are also allowed, but their size should not be more than 15 mm per 30 cm running meter.

Moreover, the depth of such defects for this class should be within 0.5 mm, and the finished product may contain:

• pitching;
• cores;
• coloring;
• germination (no more than 200 mm wide);
• blue (no more than 10%).

Also, the product may have sheet cracks, but without exit to the end and not through. Knots such a lining can have different sizes, but only with their white color. Black and flowing species should not be more than 20 mm.

Example of class "B"

Lining class "C"

Lining of grade C is the cheapest and has a lot of quality tolerances and manufacturing defects.

It allows for the presence of:

• pitching;
• resin pockets;
• germinate;
• cores;
• coloring;
• blue;
• rot;
• wormholes;
• wane.

Also, this type of product can contain almost any type of manufacturing defect, but only if its size is not more than 15 of the total plane. In this case, knots can be present in such a lining without restrictions.

Example of class "C"

Lining of class "Extra"

This type of material is often called grade 1 lining, although in fact it can be attributed to the upper class or elite type... It completely lacks production defects and deformation of wood species. That is why this class is considered the best and has a rather high price.

Many manufacturers supply it in special vacuum packaging so that during transportation it does not deform due to interaction with the environment. Also, for this type of quality, special fastening clamps are provided, which are usually included in the delivery set.

Advice! You should not trust the inscriptions on the shop window, the quality of the material must be checked with your own hands.

Which is better - lining nails or nevertheless kleimers? Read here.

Scope according to classification

Each classification of lining by grades has its own conditional area of ​​application and type of finishing.

• Extra class - used in critical areas of the building, which must have an impeccable appearance. Moreover, it is attached only to special clips so as not to spoil the appearance and is varnished. Elite types of wood are used for its manufacture, which have a beautiful structure and pattern. Many video tutorials on construction show examples of installing just such a lining, since it is very easy to work with it without being distracted by fitting.

Example of the Extra class

• Class "A" - also used on areas that are facial. Such a lining is not much different from "Extra", so it often competes with it. The fact is that different manufacturers treat the quality of their products in their own way. Looking at some of the photos, you can see that the products of class “A” from one manufacturer can be safely put on a par with the class “Extra” of another manufacturer. The only difference is sometimes the price. Therefore, you should make a choice based on the appearance, and not on the characteristics indicated in the documents.
• Class "B" - can be called budget. When using it, you often have to use various putties and putties, which would hide defects. That is why such a lining is purchased only when it is supposed to use dyes that could hide all corrections and knots. However, if you do the installation yourself, then you can take it to save money. In this case, you will have to use putties to match the wood, giving it a pleasant appearance and allowing the use of colored varnish.
• Class "C" - is considered the most recent in terms of its quality indicators. Below it there are already firewood. No professional builder would agree to work with him. This is due to the fact that his quality control of this material is carried out by rejection of class "B". Thus, among it you can often find products with significantly lower indicators than the instructions require. At the same time, defects in this material sometimes take a lot of time during assembly, since they require frequent revision or adjustment. Some unscrupulous manufacturers classify a specific marriage in this class. Therefore, it is necessary to be especially careful or completely exclude this class from work, regardless of such a parameter as price.

Sauna from the lining

Conclusion

Choosing high-quality clapboard made of expensive types of wood for work, you can turn the room into a real palace. This material is great for any premises, tolerates painting or varnishing well, has a stunning appearance and is installed in a short time. Moreover, it is one of the most environmentally friendly and has a pleasant smell.

Wooden lining will always be one of the most worthy and demanded materials for interior decoration.

Lining dimensions: centimeters do matter! Read here.

The name of this finishing material was associated with the railways.

For lining the inner space of passenger cars, a flat and long board was previously used, on the side edges of which tongue-and-groove joints were made.

Today, the lining has lost its transport "component" and has become extremely popular in other areas - construction and repair. Various types of flat surfaces are sheathed with this beautiful and environmentally friendly material, from walls to massive furniture.

In addition to interior decoration, some types of lining are used for exterior cladding of buildings.

In addition to high aesthetics, wooden lining is an exceptionally technological material, simple and easy to use. It does not need expensive surface preparation. Plaster, putty and primer are not required under the clapboard cladding. It is enough to evenly and firmly fix the lathing of wooden bars or steel profiles on the wall.

Material for the manufacture of cladding boards - wood of coniferous (pine, spruce, larch, cedar, fir) and deciduous (aspen, linden, beech, oak and alder) species.

The choice of lining, depending on the type of wood, has its own characteristics. For example, pine, cedar and spruce are great for interior decoration because they have beautiful surface textures along their entire length. At the same time, it is impossible to revet the steam rooms of the baths with pine clapboard. When exposed to high temperatures, it emits a resin with a pungent odor.

Beech or oak wood is very beautiful, but at the same time quite expensive and laborious to process.

When choosing types of lining for outdoor decoration, preference should be given to conifers. The high resin content makes them resistant to moisture and decay. Of the hardwoods, only alder is suitable for these purposes.

The main characteristics of the lining

In addition to the type of wood, as an important classifying feature, manufacturers divide the lining according to the following criteria:

1. The degree of humidity. Facing boards of natural moisture and dry (water content from 10 to 15%) differ from each other in terms of price and properties.

Dry lining is 25-30% more expensive, as it undergoes an energy-consuming procedure for removing moisture. It shrinks and cracks less.

2. The geometric dimensions of the lining and the shape of the profile. Here they distinguish between standard lining, euro lining, blockhouse and facing board "under the bar".

The thickness of the standard (GOST) finishing board can be from 12 to 25 mm, the width - up to 150 mm, and the maximum length is 6,000 mm.

At the same time, gost clapboard with a thickness of 12 - 16 mm is most often used for interior decoration. Thicker lining 16 - 25 mm is optimal for external cladding.

The greatest demand today is for eurolining, which has a wider (8 mm) tongue, which protects the joints from the formation of cracks when the wood shrinks. In addition, on the reverse side it has grooves for ventilation. The thickness of the Euro lining is unchanged and amounts to 12.5 mm with a width of 60 to 160 mm. Its length ranges from 1.8 to 6 meters.

There are two main types of eurolining - "Standard" and "Soft Line"... The first has straight chamfers, and the second has rounded ones.

"Standard"

"Soft Line"

Blockhouse - liningimitating a rounded log. Its front side has a semicircular shape. A blockhouse is usually used for exterior wall decoration of buildings.

Lining "under the timber" came to us from across the ocean, because its second name is "American". This is a planed board with tongue and groove. Thanks to the cut-off side edges, its profile accurately imitates a wooden beam.

Compared to conventional and euro lining, "American" is wider, more massive and durable. Therefore, the main place of its application is external wall cladding.The profile thickness of this type of facing board starts from 20 mm with a width of 140 mm.

The varieties of lining on the market produce in accordance with the requirements one of two standards - Russian GOST 8242-88 and European DIN 68-126. The latter is used for eurolining and divides it into three basic grades or classes - A, B and C.

Gost 8242-88

DIN 68-126

Some domestic manufacturers offer the "Extra" facing board, which is not provided for by the European standard. It has no knots or other defects, but the price of such material is almost 2.5 times higher than the cost of grade A.

Distinctive features of varieties

The main differences between the varieties of lining are visual. They are precisely and precisely regulated by the standards.

Grade A includes wood that does not have blue, rot and resin pockets. Knots are acceptable here, but only light, healthy and accrete, which do not fall out after drying.

Class B lining may have resin pockets, as well as healthy and non-consolidated knots.

In the cheapest grade C, the standard allows for blueness, dropping out knots and wane on the back of the profile.

Estimated prices

When buying lining, you do not need in-depth knowledge of a woodworking expert. However, the basic selection criteria should be known in order to buy quality material and not overpay.

Dry cladding board differs from the natural moisture material in weight. It is easy to verify this by holding in your hands two planks, the same size, but different in price.

If the pine lining was dried in a chamber, then for 1m2 (grade A) sellers ask from 200 to 450 rubles. Prices for the same material, but natural humidity range from 130 to 300 rubles. for 1m2.

It is worth noting that prices can differ significantly depending on the region of sale, as a rule, prices in the central part are much lower.

The estimated cost of dry pine euro lining of grade B is 180-350 rubles per square meter.

Dried C grade cladding boards made of spruce and pine are sold on the market for 140-250 rubles / m2.

Today, the price per m2 of linden lining (grade A) ranges from 500 to 800 rubles. The same material, but the Extra class will cost you from 650 to 850 rubles.

Larch boards are sold at the following prices: grade C - 330-600, B - 400-750, A - 530-900 and "Extra" - 1150-1300 rubles / m2.

Oak and cedar lining belongs to the category of elite finishing materials. For 1 m2 of "extra" class, manufacturers ask from 1200 rubles.

It should be noted that for large manufacturers the price of a facing board does not depend on its length. Small sellers try to make money on this and rate the lining depending on the length (the longer the board, the more expensive). Moreover, the difference in price can reach 10-15%.

Selection recommendations

When deciding which lining is better to choose, one should take into account the varietal properties of wood and the conditions of its use. As we have already said, pine clapboard cannot be used for facing the steam room, but it can be placed in the dressing room and the rest room. It is well suited for interior decoration and exterior wall cladding.

Spruce lining moisture resistant and not afraid of fungus. It dries quickly and does not darken over time. Therefore, it can be bought for finishing balconies and other surfaces that are periodically soaked.

Alder, cedar and lime finishing boards are characterized by low thermal conductivity. They are resistant to high temperature and humidity. These materials can be used to clad the walls of the steam room of the bath, as well as to use them for finishing the shelves. Even with strong air heating, linden and alder wood does not burn the skin.

A valuable property of alder lining is the minimum percentage of warpage, so the finish from it does not lose its appearance after long-term use.

When choosing a lining, you need to pay attention not only to wood defects, but also to the geometry of the board. If it is strongly bent or twisted along its length, then it will be very difficult to make an even cladding.

In this case, locks and fastening clamps will not help you. When trying to fix a deformed board in one plane, internal stresses can tear off the spike or cause cracks in the slotted lock.

When choosing lining, reject boards with resin pockets and single (falling out) knots. It is very difficult to deal with the release of resin to the surface of the wood, and a knot falling out can spoil the appearance of the cladding.