Types of sawn timber : the timber is different from the plate ?

Types of lumber in a manner

processing When processing method of wood boards are divided into edging and edging .The first involves 4 propylene hand, and on the edges of the reservoir and the value Wane shall not exceed the permissible size (determined by the class).Wane - carved out of a piece of timber boards, which is not processed at the edges.It is often used for decoration of houses carpentry methods and architectural designs.

Unedged imply partially opilennye edge or opilennye general.Unilateral are propylene and one edge of a plank, and to wane edge must be sawn maximum allowable size parameters.Unedged boards used less frequently than the first.However, they are used in construction.For example, for covering any construction elements, manufacture nastilok, planed parts, and so on.

grading shapes and sizes

Thanks to modern technology of wood processing can be carried out different types of these products.Range lumber includes boards, rails and bars, sleepers, rails (with a thickness of more than 100 mm), croaker, quarters (lagging), plates and others. We will describe them in detail.

boards - are made of thick boards or logs, can be cut or uncut.It has a thickness up to 100 mm and a width of more than double thickness.They are used most often in the regeneration of the sexes (including baseboards), walls, furniture.

Bruce - in the number of treated sides is double, triple and squared.Typically, the width and thickness are 100 mm.They are used in the construction of any load-bearing structures and rent, as they are able to withstand a heavy load.

Bar - different from the previous size.Its thickness is 100 mm and the width should be no more than twice the thickness.They are used in carpentry and furniture industry.When decorating the houses with their help make boxes for doors, beams.

Ties - have a greater thickness and width, but a little long.In fact, this type of timber with a rather large cross section.Use when creating w / d fabric.

Slab - side of the log.This kind of "waste" when sawing logs on the various boards.Often it is used for ancillary buildings, temporary structures, the creation of a roof batten.

Obopal (or quarters) - also created from the side of the timber.Nepropilennuyu has first and second surfaces sawn.It is used in the manufacture of fine joinery.

plates - half of the log, to give him the cut in the middle.They have only one straight side.The size depends entirely on the size of the logs.Frequently used for producing the above products (bars, planks, sleepers, in some cases, solid wood, etc.).

grading, depending on the type of wood

Grades sawn timber depends on the wood species: are made from coniferous or deciduous array.The former include spruce, pine, larch, fir, cedar.The second group - birch, oak, maple, beech, poplar, aspen.Coniferous trees are more commonly used in construction, as they are less absorbent, easier to handle, durable and moderately hard.They are used for the construction of load-bearing structures.

However, conifers contain large amounts of tar substances, because they are more amenable to faster and burning.

very popular wood is spruce.She, by the way, in its composition contains the least amount of resinous substances.From hardwood oak is more common.It is characterized by its wood extraordinary strength and hardness.According to GOST 8486-86 all timber can be four grades.Choice grade is used for production of various parts in shipbuilding, for lathing the vehicle sides and other critical operations.