DOUGLAS-FIR

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DOUGLAS-FIR

Pseudotsuga menziesii is known as Oregon pine, red fir or yellow fir in North America. It is considered one of the most important kinds of timber in its habitat.

Description

Botanical name: Pseudotsuga menziesii
Overall character: Straight-fibred, knotty yet exceptionally decorative timber.
Color and structure: The sapwood has a white to yellowish grey color and a small width, depending on the age of the tree. It sets itself apart from the fresh state of the bright, yellow-brown to reddish-brown heartwood that darkens significantly.
Characteristics/features: Depending on the origin, woods from Europe are classified as durability class 3-4 pursuant to DIN EN 350. North American timber is classified as class 3 durability.
Areas of use: The Douglas fir is suitable for outdoor use without earth contact, as well as for decorative indoor use. This timber is mainly used in gardening and landscaping.
Sources: https://www.holzvomfach.de

HEMLOCK

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HEMLOCK

This wood is also known as Pacific Coast Hemlock in North America and originally only stems from the botanical Tsuga heterophylla species, which is related to a native conifer.

Description

Botanical name: Tsuga heterophylla
Overall character: This light colored, straight fibred coniferous wood is often fine-grained and resembles spruce timber with correlative growth ring widths.
Color and structure: The light grey to yellowish grey splint is about 2 cm wide. The heartwood has a slightly darker color, that can slowly turn a yellowish brown in the light, similar to spruce wood.
Characteristics/features: Despite a high initial moisture, artificial drying is easily done. Hemlock is among the medium heavy coniferous woods, similar to native Spruce and Pine woods.
Areas of use: Hemlock is particularly used for interior construction, where it builds the surface. These areas not only require low weight and a uniform color, but a wood structure that is not overly emphasized. Hemlock offers these qualities.
Sources: https://www.holzvomfach.de

SOUTHERN YELLOW PINE

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SOUTHERN YELLOW PINE

The Southern Yellow Pine is one of various kinds of the mountain pine, which is native to the Southeastern region of the United States.

Description

Botanical name: Quercus petraea
Overall character: The overall appearance of this wood is mostly resin-free and resembles the Douglas fir in color and structure. The drying process of straight grained woods is simple and mostly unproblematic. The core’s fungus resistance is good, but not strong enough for outdoor use.
Color and structure: Freshly harvested heartwood is yellow-brown with a matte sheen. The 5 to 10 cm wide splint has a whitish-brown color. In Southern Yellow Pines, wooden rays are only visible on the surface. The resin channels are scattered along the longitudinal surfaces in the form of blackish-brown lines. Additionally, figured wood can be found on the side-grain of older late wood. The early wood, however, is white-brown.
Characteristics/features: This timber can easily be processed using carbide metal tools. If the resin leakage is excessive, the tools can become dull and sticky.
Areas of use: Due to the varying strength properties of the Southern Yellow Pine’s core and sapwood, it is important to clarify whether the wood is to be used outdoors or indoors.The heartwood is particularly suitable for the construction of industrial containers, decks, as structural wood for windows, doors and gates, as well as for heavily used floors. Indoors, it is often used for furniture building, flooring, profiled boards and more.
Sources: https://www.holzvomfach.de

WESTERN RED CEDAR

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WESTERN RED CEDAR

Because of its high natural durability and great staying power, the Western Red Cedar is especially highly requested in the USA. It’s one of the heavier kinds of North American softwood timber. Because of its versatile usability, it also makes for a substantial import timber.

Description

Botanical name: Thuja plicata
Overall character: Light, generally yellowish brown softwood with an aromatic smell. The growth ring structure is an essential element of this timber’s growth ring structure.
Color and structure: The splint is light and narrow with a width of 2 to 5 cm. The heartwood has a yellowish brown to dark red-brown color with occasional striping. It darkens extremely in the light.
Characteristics/features: Storage of terpenoid and phenolic ingredients makes the Western Red Cedar highly to moderately resistant to wood-destroying fungi and insects.
Areas of use: This light wood with great staying power and high natural durability is suitable for outdoor use (without ground contact) as well as indoors with low mechanical stress.
Sources: https://www.holzvomfach.de