The main types of timber, characteristics, classification and scope of application

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2020-04-30 16:00:19

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Today, virtually every sector of the economy uses in different purpose of products from wood. This is due to the unique properties of this material. Synthetic products are not yet able to replace it. Therefore, wood production produces a variety of types of lumber.

Their properties and classification, deserve detailed consideration.

Key features

Wood Products are made by cutting. Hence the name. The demand for this material due to its availability and a number of unique qualities. Existing types of lumber wood is very diverse. They have the ecology and aesthetics. In addition, they are durable, are characterized by a long service life.

However, there is a wood and negative traits. If the lumber was improperly handled or used in adverse conditions, can manifest their decay, destruction.

In the process of choosing is necessary to pay attention to the quality of their treatment. If the wood was poorly dried, it will be deformed. Therefore, you should know what the properties of each type of products.

Classification

There are many characteristics that divide the main types of lumber in the group. The most popular is the classification by type raspila:

  1. Doska.
  2. Brush.
  3. Brosok.
  4. SPAL.
  5. Gorbul.

There are also edged and unedged materials. In the first case, the workpiece is treated from all sides, and the second – only one. There are mixed varieties.

Types of lumber

According to the method of cutting the workpiece distinguish radial and tangentially. This classification depends on the positioning of the cut relative to the annual rings of a tree.

Another important classification factor is the humidity. Dry materials have this indicator at the level of 8-10 %. Such products are solid, used for improvement, for example, floor coverings. Universal lumber have a moisture content of 12-15 %. This stock for skirting, architraves, timber. External timbers have a moisture content greater than 18 %. They are suitable for facade cladding, creating a roof system.

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Material

Principal and production of sawn timber depend on the species of wood. There are hardwood and softwood species. The latter often used for improvement of load-bearing structures and floors. Hardwoods intended for decoration, as they have aesthetic appearance.Principal lumber

These two varieties of wood of various cost. Softwood is softer, influenced by the external environment. The range of application is limited, therefore they are more profitable.

But deciduous species, though more expensive, are more durable and long lasting. Among softwood pine typically only used for some finishing work. Among the deciduous species most often used oak, ash, beech, maple, birch and Linden.

Rail

The appearance of timber is for obvious reasons not only depends on tree species. The treatment process affects the characteristics of each product. One of the most common is timber. It is used in the arrangement of the covering, and independent structures of buildings.appearance lumber

There are several varieties of timber. Simple type (non-core) looks like a log, treated with 4 sides. But make and other types of similar products. Profiled timber is available in a clearly prescribed form. Most often it is a rectangle where the bottom is hollow. Of such harvested timber good houses, cottages. They hold heat well, have a low percentage of deformation (if the timber is properly treated). The profile can be very different.

There is Also a glulam. He's going from fins and has improved characteristics. He practically does not shrink, not crack. Today is also popular cylindrical timber. It has high aesthetic qualities.

Boards

Types of cutting lumber allow you to create multiple forms of products. Very popular is a kind of Board. Application range is wide. Types of cutting lumberDepending on the type of wood and accuracy of processing these products are used both for roughing and for finishing. The Board claimed in the manufacture of furniture, partitions, small buildings in the country, etc. They are divided into 5 classes:

  1. Choice – used in luxury interiors as well as in shipbuilding.
  2. First and second grade is suitable for manufacturing of furniture facades.
  3. The Third class is applicable in the construction.
  4. Fourth grade suitable for packaging, boxes.

The Size, level of processing, material characteristics take into account in the selection process.

Kinds of boards

There are many approaches to classification boards. Each kinds have their pros and cons. Popular today parquet Board. The bottom layer is made of a wood of rough treatment, and the surface is made of elite breeds. Another purpose allocate terraced,drip and engineering Board.Types of lumber wood

The First type is a light but durable product. It is made most often from tropical wood. Board for window sills has a special impregnation and characterized by good drying. The engineering variants have the bottom layer of plywood, and the top is made of natural wood.

Boards

One of today's most popular varieties of boards is the lining. These types of lumber used for covering inside and outside the premises. Even in technical documents, this type of products are called Board sheathing.Types of lumber and their properties

The Profile of the lining may be different. The material from which release it also has a wide range. While choosing, take into account operating conditions. For dry areas suitable for coniferous and soft deciduous species.

If the bath room, the use of resinous types of wood not allowed. Otherwise you can get burned. For street trim using solid wood. They are treated with various substances to prolong life.

Railway Sleepers, small mouldings

In Addition to the reviewed products that are in demand today, such kinds of timber as sleepers, and small mouldings. Is specialized in the application of the product, but their importance is difficult to overestimate.

The Sleepers from timber have several advantages when compared with concrete types. They are good in isolating the vibration of the train, securely hold the rails.

The Need for regular maintenance of existing Railways, and the installation of new lines require a large number of quality ties. They are made of expensive wood, because the sleepers are subjected to heavy loads and adverse environmental effects. They are impregnated with special substances in order to avoid decay processes, rapid destruction. Depending on the type of trains traveling on the line posts, use ties of different strength class.

Also focused varieties of timber are small molded products. These include baseboards, corners, architraves, beadings. They produce different overall. This allows you to select the best option for everyone.

Croaker

In the process of manufacturing timber or boards it turns out the slab. This is the side of the log. On the one hand this lumber is convex and the other – flat.Types of lumber and their application This material is today in demand. For the arrangement of temporary buildings, technical premises, the slab is fully applicable.

Also today, it was quite popular to run a decorative finish with this variety of lumber. Croaker machined only with a single hand, therefore prior to Assembly it is mandatory impregnated with a special antiseptic. Otherwise, after a couple of years, the slab will turn into dust. The relatively low cost makes it attractive. New areas are opening up that use this material.

Dimensions

Types of lumber and their use determine the size. Each type of treatment has its own clearly defined borders of the form. Dimensions sometimes define even the name of the product. The Board is edged products, the width of which is more than twice the thickness.

If this ratio is not met, the product is called the bar. He has a width smaller than double the thickness. And bars generally have a minimum installed dimensions. Their thickness and width should exceed 100 mm.

The Usual length of the beam is 6 m. the width and thickness are 100 standard 100 mm 100 to 150 mm or 150 by 150 mm. If the design requires a material with even larger dimensions, the product perform under the order. But the cost will be much higher standard. Therefore, the development of the project, the engineer must take into account these dimensions.

The Board also comes in accordance with the standards. Its thickness is 25, 40, 50 mm. Length is usually equal to 4, 5 or 6 meters, width – 100 or 150 mm. the Bar is usually made with standard dimensions of 40 by 40 or 50 by 50 mm. workpiece Length can be 3, 4, 5 or 6 m.

For decorating floor coverings today released a certain type of boards. They have a width of from 85 to 140 mm depending on the load level, its thickness varies from 27 to 45 mm. the Standard dimensions have to include in the design process.

The main types of timbers, their properties, scope of application, everyone can choose the best type of products for their conditions. The variety of shapes, sizes and materials allow to apply them practically in any sphere of human activity.


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Alin Trodden - author of the article, editor
"Hi, I'm Alin Trodden. I write texts, read books, and look for impressions. And I'm not bad at telling you about it. I am always happy to participate in interesting projects."

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