RTI Timber Featured Lumber
Ash
Fraxinus spp.
General Description
American ash is similar in appearance to European ash. The sapwood is light coloured to nearly white and the heartwood varies from greyish brown to light brown, to pale yellow streaked with brown. The wood is generally straight grained with a coarse uniform texture. The degree and availability of light coloured sapwood, and other properties, will vary according to the growing regions. For example, Southern ash lumber will be faster grown and contain more sapwood and therefore, a higher percentage of white colour, but compared to Northern ash, it has a more open texture and grain.
Yellow Poplar
Liriodendron tulipifera
General Description
The sapwood is creamy white and may be streaked, with the heartwood varying from pale yellowish brown to olive green. The green colour in the heartwood will tend to darken on exposure to UV light and turn brown. The wood has a medium to fine texture and is straight grained. The size of the sapwood and some physical characteristics will vary according to growing regions. The wood has many desirable characteristics and is suitable for a wide variety of important uses. Tulipwood is not a poplar (Populus) and has many superior properties. However the tree resembles the shape of the European poplar, hence its name in the USA.
Red Oak
Quercus spp.
General Description
The sapwood of red oak is white to light brown and the heartwood is often a pinkish reddish brown. The wood is similar in general appearance to white oak, but with a slightly less pronounced figure due to the smaller rays and a more porous end grain structure. The wood is mostly straight grained with a coarse texture.
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