The timber size is classified into the following categories: joists, posts, beams and wood stud.
JOIST: A beam is a beam from a series of parallel beams for supporting a floor or a ceiling. The joists are supported in turn by larger beams, girders or bearing walls.
AMOUNT: Amount is right post which bears the weight placed on its end. The amounts are placed under the beams and generally available in sizes from 4 in. x 4 in. or 6 x 6.
BEAM: A beam is a structural element which has at least 5 inches wide and 2 inches thick and is placed horizontally for carrying a weight over its entire length.
TUDWOOD: Studwood is a vertical structural member used to construct walls and measuring at least 2 in. x 2 in. and a maximum of 2 x 6.
Classes timber
CHAPS
- Small slit of the timber along the length of the wire
- No effect on strength, but seemingly undesirable for structures such as decks and ramps
CARIES
- Wood rot usually caused by a fungus and / or moisture
- Rare, but the pieces may not be achieved on the solid structural
NODE
- Different types of nodes are classified by size: nodes with large needles nodes over 1 1/2 inch diameter
- Larger nodes can reduce the strength of wood
BALSAM
- Resin accumulated in the cells of the wood giving it a stained
- No effect on strength, intolerant of the paint or stain
SLOT
- Split wood over the entire length: on one side to the other
- No effect on strength, but seemingly undesirable for structures such as decks and ramps
FLACHE
- Bark or lack of wood in the corner or on the edge of the timber
- If the proportion wane falls below a tolerance, the strength is not affected, only the appearance
WARPING
- Twisting or unevenly shaped timber. Wood can be bent in four ways:
Longitudinal buckling
The large surface area is good in-curved across the front but the length
Instep
The narrow face is good in-curved across the front but the length
Transverse buckling
The large surface area is deformed in the direction of the width
Twist
The four plans are marked by a groove that winds
- Effect on the use, not the strength, ideal for use as a flat material
Classes are identified by numbers, letters and words. Lumber is stamped classification allows to quickly find quality.
- Class # 2 or higher is used for general construction
- Class Economy is excellent for construction unregulated
- Class selection is ideal for ceilings and structures when structure requires great strength.
Glossary of Lumber
IN FINE-GRAINED
Wood with small pores, which resists marks and which is harder than wood coarse, but less stable.
DENSITY
Refers to the compression of the wood particles. This is determined by the tightness of the ground wire and the resilience of the wood with water. More wood is dense, it should be less affected by marks or scratches.
DEFECTS
Makes reference to unique inherent in any piece of wood.
DURABILITY
About the ability of wood to resist environmental factors such as water, snow, wind, etc..
GIRDER
The beam is the main horizontal support of a home.
CLASS
A class is given to each piece of timber harvested. More classification is high, fewer defects.
THREAD
Refers to patterns found in natural wood (fiber direction). Wire varies with the size, narrow and colors, depending on the species of wood.
WOODEN HEART
Refers to the inner part of the wood that is denser and darker than the sapwood.
NOMINAL
In the timber, the nominal thickness and width are nominal industry standard formats and are generally higher than the actual thickness and width.
COARSE
Timber with large pores that is more stable than the fine-grained wood, although less hard.
SAPWOOD
Refers to the outer part of the tree between the bark and the wood of heart.
STABILITY
Capacity timber to maintain its size and shape. A wood shrinks or expands depending on the temperature would be classified as less stable.
TEXTURE
The visual and tactile qualities to the surface of a piece of wood.
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