Types of wood according to DIN 68126 are classified as Extra, A, B, C. There is a way to sort into narrower subgroups, for example, varieties with A1, A2, A3, A4 (A1 has 1 knot per 1 meter, A4, respectively, 4 knots per 1 running meter). And there is a second way - simplification, i.e. there is a place to be grade AB, grade BC. This method is used when designating long lumber in sawn timber, the most popular example is block house and imitation timber, which are made in a length of 6 meters. This is done in order not to downgrade the entire board due to the presence of a downgraded section on it.
The procedure for assigning a wood grade according to DIN 68126 to grades A, B, C
grade | grade A | grade B | grade C | |||
Vice | Qty | Qty | For 1 m.p. each side: proportion by side width or size | Qty | For 1 m.p. each side: proportion by side width or size | |
Small knots up to 1/2 size of the norm are allowed in any quantity in any place | ||||||
Knots on the face (including with access to the ribs) | ||||||
Total, pcs | up to 25% | 5-7 | up to 33% | > 8 | over 33% | |
including healthy fused | > 2 | up to 30 mm | > 3 | up to 40 mm | > 4 | > 40 mm |
healthy not fully fused | up to 20 mm | up to 30 mm | > 30 mm | |||
rotten, tobacco, fallen out | No | up to 20 mm | > 20 mm | |||
Knots on the edge | ||||||
Total, pcs | 2 | 50% | 2 | 67% | > 2 | 100% |
whole | 2 | 1 | ||||
dropped out | No | 1 | 2 | |||
roll, core, prorost | Yes | in a small amount | Yes | up to 30% of the area | Yes | |
Pitchers, salt pockets | 2 | 100 mm | 4 | 200 mm | Yes | |
Cancer, discoloration, spots | No | Yes | up to 20% of the area | Yes | ||
Planing defects | ||||||
hairiness and small breaks near the boughs | Yes | Yes | Yes | |||
deep cuts and creases | No | No | Yes | |||
not easy | No | Yes | on one side up to 30% of the area | Yes | on one side up to 50% of the area | |
cutter burns | No | Yes | Yes |
- In the total volume of shipped products, up to 5% of material of a lower or higher grade is allowed, i.e. every 20th board may be of a different grade.
- The grade of wood is determined on the lowest quality one-meter section on the front side of the lumber.
- The size of the knots is determined between the tangents to the contour of the knot parallel to the longitudinal axis of the lumber.
- The size of sewn and oblong knots is taken equal to half the size determined according to the rules of clause 3
- In sawn timber with a length of more than 3 m, one knot of a lower grade is allowed.
- In bars, the number of knots is not standardized.
Photo of wood defects
I marginally touched on the types of wood, because sometimes the difference in price can reach two or three times. It turns out that wood has long been distinguished according to GOST, and there are five different types ...
According to state standards, both boards and bars differ. GOST 2695-83 sets out the basic requirements for hardwood types of lumber, in here GOST 8486-86 and GOST 24454-80 defines for coniferous materials.
The main requirements are moisture, deformation during drying, clear dimensions, as well as the presence of knots and other irregularities.
With a moisture content of 20%, some requirements for dimensions are set, and with more or less moisture, others. By the way, this indicator describes GOST 6782.1 - 75
The assessment of lumber occurs on the plane and edge, the worst for the board. The bars are rated on the worst side.
Now let's go through the varieties:
Selected variety
The most expensive type of wood, may be called class "A", more expensive by 2 - 3 times the first grade.
They are mainly used in shipbuilding and automotive industry. Of these, the "sides" of trucks, parts of cabins can be made, in shipbuilding deck boards, cabin elements, sometimes yacht masts, etc. are made from them.
Basic requirements - knots are allowed, but only large ones, or at a distance of 2 meters from each other. Rotten knots, as well as rotten parts of wood, are not allowed. Cracks may be present, but they should not be more than 10% and they should not be deep, mainly formed as a result of shrinkage. The slope of the fibers is not more than 5% of the length. There should not be parts of the root system in the wood. That is, the lumber must be clean without any flaws.
1 SORT
Or class B. It is also used in industry, but is already used in the production of wood. The cost is cheaper, but the quality requirements are lower.
Main:
- rotten, falling knots, more than 10 mm are not allowed.
- through cracks are not allowed, the depth of which is more than 1 mm and the length of which is ¼ of the length of the lumber.
- there should not be elements of rotten wood, as well as elements of a "dead" bark or overgrown wound.
– rottenness, elements that are gray in color, mold or inclusions of foreign parts are not allowed
2 GRADE
Class "C". The requirements are no longer so strict, they can also be applied in the production of furniture, but in closed places, such as the frame of upholstered furniture or beds.
Primary requirements:
- There should not be large knots, the size of which is more than 20 mm, which fall out or rot.
- Cracks with a depth of 1 mm and a length of 1/3 of the length of the lumber are not allowed.
- Foreign bodies and mechanical damage are also unacceptable.
For this variety, some "defects" of wood are allowed, but only those that do not spoil the overall characteristics and impressions.
3 GRADE
Class "D". In reality, this is a low level of wood. But it is also very cheap, it is mainly used in packaging production, usually these are boxes, boxes and other containers.
Primary requirements:
- Large intergrown knots and end cracks are not allowed, to the full depth.
The rest of the flaws are almost all acceptable, even rotting and damage to the wood layer and sharp slopes of the fibers.
Usually these are trimmings from the first and second grades of lumber or really low-quality wood.
4 GRADE
Class "E". The lowest class, therefore it is used for secondary production, for example, they make temporary fences at construction sites, foundation formwork, pallets, scaffolding. Can be used for "temporary buildings" or sheds.
As you understand, all the remaining imperfections are allowed here, here are all the trimmings from the previous classes.
The price is the lowest, usually 5-7 times lower than the "selective type".
It seems that there is a lot of information, but in reality the differences between even the “selective” class and the “first” class are striking, they can be seen what is said with the naked eye. Selected timber or board, smooth without flaws - knots, etc., just an even "layer". The first grade may already be with small knots and cracks.
From what class to build a frame for the house
You can often hear such a question - guys, the frame should not be lower than the second class of wood (and preferably either “first” or “selective”). Moreover, it is necessary that it has additional processing from rotting and moisture absorption, only then can it stand for a really long time. Also, the drying of the tree must be carried out correctly.
A short video on how to choose wood in Egypt, there are already 7 classes.
Here is some information, I think it was useful to you. Read our building site.
Clapboard has long been one of the favorite finishing materials. Thanks to her, cozy, warm and original interiors are created.
What is a lining
Lining - a long planed board. It has a groove and tongue for mounting. The material is environmentally friendly, because it is made of wood. The characteristics are close to the characteristics of wood: durability, ease of installation, high-quality sound insulation.
Lining is used for both external walls and ceilings. In addition, it can be used for the construction of terraces, gazebos, baths. Thanks to good sound absorption, even the walls in cinemas are sheathed with it.
Currently, there are several types of lining:
- Plain(it is also called "euro lining") - it has special grooves on its surface that are necessary for ventilation.
- American- resembles a bar made of wood. This view is attached only in the horizontal direction. It is usually used for exterior decoration of buildings.
- Block house- imitates a round bar.
What is the lining made of?
The traditional material for making 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 frequently. This is due to the fact that spruce has a loose structure.
All varieties of pine lining are suitable for indoor use and exterior wall cladding. But in some rooms (for example, a steam room in a bathhouse), such material is not recommended. But spruce lining is resistant to moisture and mold, so it can be used in places where moisture can get in (baths, balconies, open terraces).
Of the hardwoods, alder, ash, maple, aspen, linden are used. Slightly rarer walnut and oak. Aspen lining, as well as from premium wood species, can be purchased online at vagonkavsem.ru. The goods are delivered in the Russian Federation in a shrink film. Elite lindens and alders are made from larch; it never heats up and does not burn the skin, regardless of the air temperature. Therefore, they are often used for cladding walls in the steam rooms of baths and building shelves there.
Recently, lining made from other materials (for example, plastic) has also been produced. Such a building material is conditionally called "lining" due to the presence of a "groove-comb" fastening system.
Varieties of lining
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 material. Therefore, such characteristics as the presence of knots and resinous pockets, the blueness of raw materials, existing cracks, etc. are chosen as the basis for dividing the lining into grades. Depending on this, the following types of lining (or classes) are distinguished:
- Variety "extra" (also called "higher" or "premium").
- First grade (class A).
- Second grade (class B).
- Third grade (class C).
Products of different grades are made using the same technology. Their division occurs after sorting, since the types of lining differ only in the presence of external defects.
Variety "extra"
Such lining (grade "extra") is distinguished by the complete absence of any defects. It has no knots, no cracks, no chips. 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 rich country houses.
Accordingly, it is precisely such lining that has the highest price - the highest grade. For its safety, manufacturers often pack it in a vacuum. In this way, they reduce the likelihood of damage to the product (chips, deformations) during transportation and storage. The kit usually includes special fasteners for mounting. The premium lining does not need to be adjusted, it will fix 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 finish further enhances the beauty of the wood.
When buying, you need to be careful. Visually inspect the material to avoid deception. Do not trust only the inscriptions on the label. There are times when there are ideal boards on top of the package, and lower quality boards on the bottom. Sellers who are confident in the quality of the material will not interfere with inspection.
First grade
In terms of its characteristics, class A lining is comparable with top-class lining. Grade 1 from some manufacturers is often better than the highest from others. This is due to discrepancies in the requirements of technical specifications during production. Therefore, in such situations, you need to focus on the appearance of the material.
Differences of the first grade lining - in the absence of falling knots and through cracks. Small and necessarily non-through cracks occupy an insignificant part of the boards. The absence of blue, rot and black dots is also characteristic.
The knots that are on the material must be light, healthy and not falling out without fail. Their size does not exceed 1.5 centimeters in diameter. Dropping knots must 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 plastic, 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 a decorative varnish (oil, wax), which will emphasize the natural lines of wood.
Larch lining (grade 1, as well as the highest), is perfect for interior decoration of residential premises.
Second grade
Such 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 meter running board. On the surface of the product there is blue (up to 10% of the volume), knots, resins, cores. At the ends, a gap is acceptable, which does not interfere with installation.
Knots do not exceed two centimeters in diameter, their number is up to one per linear meter of material. If the knots are black, then their diameter should not exceed 1.5 cm. Rotten and falling knots are not allowed.
Permissible formation cracks extending into the end, with a length not exceeding a third of the entire length of the board. Through cracks - no more than 30 cm in length. The length of formation 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 production process. Existing cracks should not be through or go to the end of the board. Possible rot up to 10% and a wormhole (up to 3 per linear meter). For this grade, any defects that do not interfere with the installation of the material are permissible.
Existing flaws 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. The low quality of the products explains the minimum cost.
During installation, lining of this class must be adjusted and painted in order to hide serious surface defects. These can be falling knots, through cracks, core, bark remnants, chips. Material defects occupy most of the surface.
Comparative table of lining by grades
Distinctive characteristics, due to which lining varieties are distinguished, are most conveniently compared using a table.
Variety "Extra" | 1 grade | 2 grade | 3 grade |
|
Knots | Invalid | Up to 1 healthy, light and captive knot per 1 linear meter | Healthy are allowed. No more than 1 drop-down (up to 1.5 cm in diameter) per 1 linear meter | Allowed |
Invalid | Permissible (not through) | Permissible (not through) | Allowed |
|
Core | Allowed | Allowed |
||
Invalid | Invalid | Allowed |
||
Resin pockets | Invalid | Less than 5cm | Allowed | Allowed |
Wormholes | Invalid | Invalid | Allowed |
Price differences of types of lining
Differences in the quality of the material and the presence of defects lead to differences in prices for lining. Boards that look the same may differ in price. This may be due to the way the material was dried. The board dried in the usual way has natural moisture, it is heavier, but almost half the price. The material that has been dried in the chamber (it is lighter) is priced more expensive.
So, class A pine lining, dried in a chamber, costs about 200-450 rubles per 1 m 2, and dried naturally - 130-300 rubles. Dry material from pine varieties B and C will cost 180-350 and 140-250 rubles per 1 m 2, respectively.
The price is approximately as follows (per square meter):
- The highest grade - 1200 rubles and more.
- First grade - 550-900 rubles.
- The second grade - 400-750 rubles.
- Third grade - 330-600 rubles.
Lining, regardless of the variety, is a beautiful and environmentally friendly material that is easy to use in work. But when choosing the necessary material in the store, care should be taken. It is better to spend a little time checking the purchased products, whether they correspond to the declared grade. Otherwise, you may be wrong. This will affect the aesthetic features of the room, which will not look quite the way it was planned.
The townsfolk are often confused in terms - what is lining grade A, AB, C? Practice shows that the domestic consumer is now quite demanding on the quality of lining. For this reason, the good old DIN 68 126 (and even more so GOST 8242-88) are in fact too soft. Because of this, we and our manufacturers have to work according to our own specifications - more stringent than all existing regulatory documents, where knot holes or blue spots on the front surface can be considered the norm.
In total, on average, it is customary to distinguish 4 varieties of planed products. They may be named differently. In most cases, manufacturers offer one category with the highest standards - Extra, Premium, Ultra, Choice ... And they also sell eurolining of another 2-3 quality levels: I; II; III - varieties, or designate categories with letters: A; IN; WITH.
In addition to the main varieties, classes and categories, you can often find intermediate options, for example, BC or AB. Let's take, for example, a lining of category AB, which in terms of quality is a batch of products, in which, along with parts of a higher grade A, there is also a certain number of products of grade B. Why does the manufacturer do this - you ask? Everything is very simple.
The intermediate class AB is not allocated to deceive the client. When fraudsters seek illegal profit, they simply sell low-grade products under the guise of high-grade ones, for the same money, to the extent that they can mix everything that is available in category A, including 3rd grade products or even complete rejection .
Before a normal manufacturer, the task is to make the most of the sawn raw materials. The fact is that a tree is a living and unique organism, what is the structure of the trunk - it is not clear before sawing how the cut board will behave during the drying and gouging process, too.
Moreover, the longer the log is sawn, the more likely it is that some kind of defect will get into the finished product. This is especially true for knots, which are parts of branches, and the higher up the trunk, the more branches. That is why the output of lining with a length of more than 4 meters, falling under the criteria of selected or first grade, is very small. This is not to mention the first-class 6-meter lining, which out of 20-25 pieces from one loose trunk it turns out to select only 1-2 pieces. That is why lining of great length of pure category A is so expensive.
That is, grade AB, with a fairly acceptable quality, allows the consumer to save more than 20 percent of the money, having received quite decent material upon purchase, which, if properly disposed of, can solve very serious problems.
Grade A lining
Clapboard Grade B
Clapboard grade C
elka-palka.ru
Types of wood according to DIN 68126
Wood grades according to DIN 68126 are classified as Extra, A, B, C. There is a way to sort into narrower subgroups, for example, grades with A1, A2, A3, A4 (A1 has 1 knot per 1 meter, A4, respectively, 4 knots per 1 linear meter ). And there is a second way - simplification, i.e. there is a place to be grade AB, grade BC. This method is used when designating long lumber in sawn timber, the most popular example is block house and imitation timber, which are made in a length of 6 meters. This is done in order not to downgrade the entire board due to the presence of a downgraded section on it.
The procedure for assigning a wood grade according to DIN 68126 to grades A, B, C
grade | grade A | grade B | grade C | |||
Vice | Qty | Qty | For 1 m.p. each side: proportion by side width or size | Qty | For 1 m.p. each side: proportion by side width or size | |
Small knots up to 1/2 size of the norm are allowed in any quantity in any place | ||||||
Knots on the face (including with access to the ribs) | ||||||
Total, pcs | up to 25% | 5-7 | up to 33% | > 8 | over 33% | |
including healthy fused | > 2 | up to 30 mm | > 3 | up to 40 mm | > 4 | > 40 mm |
healthy not fully fused | up to 20 mm | up to 30 mm | > 30 mm | |||
rotten, tobacco, fallen out | No | up to 20 mm | > 20 mm | |||
Knots on the edge | ||||||
Total, pcs | 2 | 50% | 2 | 67% | > 2 | 100% |
whole | 2 | 1 | ||||
dropped out | No | 1 | 2 | |||
roll, core, prorost | Yes | in a small amount | Yes | up to 30% of the area | Yes | |
Pitchers, salt pockets | 2 | 100 mm | 4 | 200 mm | Yes | |
Cancer, discoloration, spots | No | Yes | up to 20% of the area | Yes | ||
Planing defects | ||||||
hairiness and small breaks near the boughs | Yes | Yes | Yes | |||
deep cuts and creases | No | No | Yes | |||
not easy | No | Yes | on one side up to 30% of the area | Yes | on one side up to 50% of the area | |
cutter burns | No | Yes | Yes |
- In the total volume of shipped products, up to 5% of material of a lower or higher grade is allowed, i.e. every 20th board may be of a different grade.
- The grade of wood is determined on the lowest quality one-meter section on the front side of the lumber.
- The size of the knots is determined between the tangents to the contour of the knot parallel to the longitudinal axis of the lumber.
- The size of sewn and oblong knots is taken equal to half the size determined according to the rules of clause 3
- In sawn timber with a length of more than 3 m, one knot of a lower grade is allowed.
- In bars, the number of knots is not standardized.
Download Grades according to DIN 68126 in PDF format
Photo of wood defects
Domestic standards for determining wood varieties
| Types of wood: GOST | Board selected grade | Board 1 grade | Board 2 grade | Board 3 grade | Board 4 grade |
Print version of the page
The article Types of wood according to DIN 68126 was modified: April 19th, 2018 by the author LesKhimProm LLC
www.lhp.by
Types of wood
Requirements for the grade of products for the assortment of varieties Elita, Prima, A, B, C
Larch lumber grade EXTRA
Not allowed: knots, cracks, core. Also, the presence of resin pockets, rot, insect damage is not allowed. It is possible to have a tolerance of +\- 50mm in length, +\-1mm in width, +\-0.5mm in thickness.
Larch lumber grade PRIMA
Allowed: 1-2 knots, up to 5 mm in size per product, one resin pocket per product. Not allowed: cracks, core, rot, insect damage. It is possible to have a tolerance for length +\- 50mm, for width +\-1mm, for thickness +\-0,mmm
Click on the picture to enlarge
Prima knot | Variety Prima knot | Knot on the lining |
Larch lumber grade A, V Allowed: - healthy, firmly intergrown knots up to 3 cm, without restrictions; - small black 5 mm - 4 pcs., per product; - knots with a black border up to 10 mm - 3 pcs., per product ; - firmly intergrown healthy knots on one side up to half - 2 pcs. per 1 m of length; - thin cracks up to 3 cm, non-through, located near the ends of the product. - separate resin pockets with a surface of up to 2.5 square meters. see One resin pocket per product. - resin damage, if this does not impair the appearance of the product. One per product. Not allowed: - rot, traces of wood damage by insects.
It is possible to have a tolerance for length +\- 50mm, for width +\-1mm, for thickness +\-0,mmm
Click on the picture to enlarge
Grade AB knot | Knot on the lining | Knot on grade AB |
Larch products of any kind have precise geometry. We invite you to visit our warehouse and make your choice at the address: Avtovskaya st., 31.
All of the above requirements for product quality apply to the front side of the product.
Explanation of terms
Knots A knot is the base of a branch enclosed in the wood of the trunk.
CracksRupture of wood along the grain
Core The central part of the trunk, consisting of a loose tissue of a brown or lighter color than the surrounding wood.
Roll, oblique layer Deviation of wood fibers from the longitudinal axis of the assortment
Resin pockets Resin pockets are cavities between annual layers filled with resin.
Sprouting Bark overgrown in the trunk or dead wood as a result of external damage.
RotDestruction of wood by various fungi
Name | |||||
Not allowed | Small 3-4 mm are allowed, 1-2 pieces for the entire length of the product | Allowed: Healthy, firmly intergrown knots up to 3 cm, without length restrictions; Small black 5 mm - 4 pcs., per product; Knots with a black border up to 10 mm - 3 pcs., per product; Strongly intergrown healthy knots on one side up to half - 2 pcs. per 1 m of length; No more than one vice per board | Not allowed: fallen knots. Allowed: Healthy, firmly intergrown knots, without restrictions; Small black 2 cm - 2 pieces, per 1 m product; There should be no more than 2 vices on the board. | Allowed: Fallen knots up to 5 mm on the edges of the groove; Healthy knots, no restrictions; Knots with a black border up to 2 cm - 3 pcs. per 1 m of length; Black tightly fused up to 3 cm - 2 pcs. per 1 m of length; Not deep pits from longitudinal knots up to 3 cm; Chips on the edges, if this does not impair the laying of the board and does not leave large chips on the front surface. There should be no more than 3 vices on the board. |
|
Not allowed | Not allowed | Not allowed: cracks extending over the entire distance. Allowed: End cracks up to 3 cm long of the total length, non-through and thin. | Allowed: Larger non-through cracks extending over the entire distance, up to 50 mm long in the direction of the fibers. | Allowed: Larger non-through cracks extending over the entire distance, up to 400 mm long in the direction of the fibers; Through the edges of the boards up to 100 mm in total length. |
|
Core- | Not allowed | Not allowed | Not allowed: larger tubular core; | Allowed without restrictions | Allowed without restrictions |
Roll, oblique | Not allowed | Not allowed | Not allowed | Allowed if stacking is possible |
|
resin pockets | Not allowed | No more than one is allowed for the entire length of the product | Allowed: individual resin pockets with a surface of up to 2.5 square meters. see One resin pocket per piece. | Allowed: no more than 2 on the product - depth up to | Allowed with a limit of up to 10 cm in length. |
Tar areas | Not allowed | Not allowed | Not allowed minor, if it does not impair the appearance of the product. | Minor ones are allowed, if this does not impair the appearance of the product. | Allowed without restrictions |
Prorost | Not allowed | Not allowed | Not allowed | Allowed without restrictions | Allowed without restrictions |
insect infestation | Not allowed | Not allowed | Not allowed. | Not allowed: | Allowed: separate places, up to 10% of the quantity. |
Not allowed | Not allowed | Not allowed. | Not allowed. | Not allowed. |
|
Color change | Not allowed | Not allowed | Not allowed:. | Not allowed: | Allowed: Fading and durable color streaks; Blue up to 20 cm long and 20 cm wide light, on one board of 10 pcs. |
Treatment | Not allowed | Not allowed | Not allowed: | Not allowed: | Allowed: Defects in the guard, in which styling is possible; slotted places; Wane that does not affect styling and stability; Not prostrog at the end of the board up to 3 cm. On both sides, along the edge of the board up to 55 mm. |
Length up to (+/-) 50 mm Width up to (+/-) 1 mm Thickness up to (+/-) 0.5 mm | Length up to (+/-) 50 mm Width up to (+/-) 1 mm Thickness up to (+/-) 0.5 mm | Length up to (+/-) 50 mm Width up to (+/-) 1 mm Thickness up to (+/-) 0.5 mm | Length up to (+/-) 50 mm Width up to (+/-) 1 mm Thickness up to (+/-) 0.5 mm | Length up to (+/-) 50 mm Width up to (+/-) 1 mm Thickness up to (+/-) 0.5 mm |
doskivdom.spb.ru
What is eurolining needles: sizes and varieties
Why in the modern markets of finishing materials, wooden lining takes a leading position? There are no special secrets here, and the answer has been obvious for thousands of years. Wood is a natural building material that has excellent qualities. It retains heat, is pleasant for contact, and with special processing can withstand a high level of humidity. Wood is a frost-resistant material, even despite its peculiarity of changing density with temperature changes.
We choose eurolining needles
Eurolining
Eurolining is a wood material that has retained all the properties of a natural element. A big advantage is the unique lock system, which allows you to conveniently and quickly lay the lining, without the use of additional adhesives. Eurolining can be practically from any breeds of a tree. The most popular are needles and larch. The needles have a wide price range, this is an ordinary pine, and an expensive cedar.
But we will look at the most popular material. Moreover, a simple eurolining of needles is used in the organization of baths, saunas, gazebos, balconies, etc. At the same time, it is far from always that lining is done in a wooden house.
Kinds
And let's start, perhaps, with the types of eurolining, or rather, classes. The material is specially divided into them to make it easier to establish the scope and price range for lining. Let's consider each separately.
Extra
This is the highest grade or class of lining. The main distinguishing features of such a tree will be its exceptional appearance. Such lining should not have the slightest defect. It is made from the most durable parts of the tree trunk. The structure of the wood should be uniform, without small cracks, depressions, knots and other things. And this applies to the entire length of the product. Naturally, the cost of such lining will differ significantly from the lower classes. It is often used for interior decoration of a room, decoration in wooden houses, rest rooms in baths, etc. With regard to special qualities, such as resistance to moisture and temperature extremes, with special processing, the needles may well meet all the requirements for organizing a sauna or bath.
Grade A
This is a material that is manufactured in accordance with GOST and must meet a number of requirements. Firstly, eurolining from class A needles should not have through cracks. Secondly, the grinding of the material must be perfect. Thirdly, the smallest cracks up to 5 mm are allowed, but not more than 2 for the entire product. Fourthly, the existence of one knot is possible at a length of 1.5 m, but its length should not exceed 3 mm.
Grade B
This is an average class in cost, which is often used for interior decoration. The main characteristics, of course, depend on the natural material, however, GOST establishes certain qualities that should not be violated for this class. Lining grade B implies the presence of whole knots, as well as small short cracks, slight roughness.
There is also grade AB, that is, lining includes permissible defects in grades A and B. It costs even less than B. It is often used for finishing secondary premises: corridors, balconies, etc.
Grade C
This is the lowest of the existing varieties. Its characteristic feature, in addition to low cost, is the presence of large defects than in previous classes. It allows the presence of wood stains, heterogeneity of wood. Class C lining may have falling knots, some mechanical damage, blue. However, it is important that mechanical damage can be from above and should not affect the overall quality of the finish. Usually this material is taken for finishing for painting. Then there is no particular difference in strength with higher grades.
In any case, the needles must be processed, since without this the wood will not have any protective properties. It is also important to pay attention to the further use of the material. For needles, there are special primers, varnishes and paints that protect it from environmental influences.
Dimensions
The dimensions of eurolining made of needles can also be of several sizes:
- length - 1.5; 2; 2.1; 2.7; 3 meters;
- thickness - 12.5 mm;
- width - 45; 96; 120 mm.
For lining from needles (spruce, pine), wood is used, which is harvested directly at the place of timber extraction. Large manufacturing enterprises are located in the north-west of Russia, in the Karelian and Arkhangelsk regions.
You can buy eurolining both using online services and in some large hardware stores.
Summing up
It only remains to add that for most types of finishes, needles are an ideal option also due to the light color of the wood. And the special aroma that hovers in the air of a room finished with this material makes an increasing number of people use just such a lining. A pleasant home atmosphere is guaranteed.
Lining - the perfect finish for any room. With its help, you can emphasize the natural beauty of the interior. The warmth of wood will make your home cozy. Wooden walls emphasize unity with nature. Someone says that these are relics of the past, but this is not so.
When choosing and buying this material, you need to pay attention to the class of the product. Choosing the right type of lining will help you save money when decorating the room.
So, if you want to use this material for finishing 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 type of lining is better without having an idea of \u200b\u200bthe scope of its application.
Kinds
In total, according to GOST, 4 types are distinguished:
- Premium or Extra (highest grade)
- Class A (grade 1);
- Class B (grade 2);
- Class C (grade 3).
Video - how you can be deceived when selling:
Lining class "Extra" or "Premium"
This category has the highest price. On external inspection, you will not notice any defects. Without a hitch - it's about her. Typically, such webs are obtained by splicing.
If this method had not been applied, then it would have 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 put it in vacuum packaging. This is done to reduce the risk of chips 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 no need to customize it during installation- it fits perfectly.
When buying, do not trust the manufacturer's inscriptions. Check the conformity of the category during a personal inspection. If the seller refuses this request, it is better not to take it, as he knows about the catch. It also happens that ideal boards are placed on top of the package, and lower quality ones are hidden inside.
When mounting, use only special fasteners so as not to damage the material. Lacquer is the perfect finish for this category. It will allow you to further reveal the beauty of the tree and emphasize its undeniable merits.
Clapboard class A
It is in many ways similar to its more expensive counterpart. 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 "falling out" knots. If there are cracks, they are not through and occupy a small percentage of the entire volume of the board. The core occupies no more than 20%.
On such a product there should be neither rot nor blue. Black knots are also not allowed.
This type is used for facial finishing work. Defects do not need to be shaded with paint. An excellent option for decorating it is varnish. It emphasizes the natural "forms" of the product. Oils and wax are also suitable.
Premium and Class A are types of lining that are most suitable for finishing residential premises.
Manufacturers still use the name 2nd grade. This product has visible and significant defects.
Size of defects (chips, dents, gouges and cracks) should not exceed 3 cm per 60 cm running meter. On the finished product, you can find blue (the value should not exceed 10%), resins, knots and core.
However, cracks should not be through and go into the end part. Most of the defects are factory in nature. Small rot (no more than 10%) and wormholes (no more than 3 per linear meter) are possible.
In order for the marriage to be less noticeable, special grouting and painting are used. The latter is preferred in dark colors.
This option is considered the most budgetary. It is available to a wide range of people.
This option is the lowest quality and, accordingly, the most affordable.
Scope of application - rough work and utility rooms. Requires a lot of fitting during installation and the complexity of coloring to tidy up the surface when finishing.
The percentage of defects on the surface rolls over. These include falling black knots, through cracks, chips, remnants of bark and core.
Some manufacturers include 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 the imperfections that make up most of the surface.
Comparative characteristics
Here are the varieties and description of the lining:
Extra | A | IN | WITH | |
Knots | Not allowed | Light knots are possible if they are healthy and do not fall out. No more than 1 per linear meter | Healthy knots in any quantity. If falling out, then no more than 1.5 cm in diameter and no more than 1 per linear meter | Unlimited |
cracks | Not allowed | Not through | Not through | Any |
Core | If only in very small volumes (3-5%) | No more than 20% | Allowed | Allowed |
Rot | Not allowed | Not allowed | In any size | |
Wormholes | 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 vary. Here is the average value for each category. The cost also depends on the wood used. The table shows the values per 1 sq.m of a product 2-3 meters long. Currency - rubles.
Larch | Aspen | Pine | Linden | |
Extra | 690 | 470 | 450 | 990 |
A | 500 | 350 | 300 | 600 |
IN | 350 | 300 | 230 | 500 |
WITH | 200 | 180 | 180 | 300 |
Video - how to choose material:
Before you buy a lining, decide on the room to be trimmed. Using the Premium category, you can create royal mansions from an ordinary house, but will the price be affordable for you?