234 0 obj <> endobj xref 234 21 0000000016 00000 n SP-37R) Co-published by Western Red Cedar Lumber Association and Western Red Cedar Export Association. Western Red Cedar is used to manufacture a range of specialty products such as siding, paneling, structural decking and outdoor decking. In this article, I describe forty facts about the plant and the importance of the “tree of life” in the local culture. Here is an overview of the characteristics that determine the grades of Western Red Cedar: Clear Western Red Cedar. Important structural properties of four Western softwoods : white pine, sugar pine, western redcedar, and Port-Orford-cedar. 0000002606 00000 n Growth, properties and uses of western red cedar (Thuja plicata Donn ex D. Don)/by Josefina S. Gonzalez. Fasteners should be corrosion resistant such as aluminum, hot-dipped galvanized or stainless steel. Properly finished and maintained, cedar will deliver decades of trouble-free service. It is also a recognized structural material with known mechanical and physical properties. Materials are burned in a test furnace for a relative assessment of flammability. Average Dried Weight: 575 kg/m³. 1972 . 6% is the average equilibrium moisture content for interiors of heated buildings. Clear, Vertical Grain – This is the highest grade of Western Red Cedar. The following table is Structural Lumber Wood Engineering Properties. Western Red Cedar is used to manufacture a range of specialty products such as siding, paneling, structural decking and outdoor decking. Characteristics & Properties of Western Red Cedar, characteristics-properties-of-western-red-cedar. 0000001538 00000 n ¬ The cell structure converts the sound energy into heat by friction and viscoelastic resistance. Siberian Larch. Examine Western Red Cedar as a building material in order to understand its durable and sustainable properties. Of all available softwood species, cedar tends to be one of the best thermal insulators. Western Red Cedar lumber is available in visual stress grades for construction and finishing uses in a range of lengths, widths and thicknesses. While most trees decompose with a few years, this giant tree may take over 100 years to rot and return to the soil. The smoke developed index for Western Red Cedar is 125. In addition to interior and exterior trim, as well as exterior cladding, Western Red Cedar of this grade is also used for cabinetry, doors, windows and similar applications. 0000001705 00000 n 2. Western or Pacific redcedar, giant or western arborvitae, giant cedar, canoe cedar, shinglewood, is an evergreen coniferous tree in the cypress family Cupressaceae, native to Western North America. Cedar's low density enhances its insulation value and makes it an easy wood to transport and handle. 8" x 8" x 20' (240") = $300 each - Qty 1 2" x 12" x 18' (216") = $125 each - Qty 1 - clear grain Demonstrate Western Red Cedar’s versatility as a building material through three case studies 0000005160 00000 n What Western Red Cedar lacks in strength, it makes up for in appearance. As Hokie says, Eastern Red Cedar is a juniper. Cedar trees fall under the Cedrus genus and the Pinaceae family, which is the family of treesthat is coniferous. 0000002446 00000 n �>�5�CO��4�����n�g�3�X�5j]X��Ȇl�VZ�N�1b!H�>�!a�خk-3R+�.Jk��Ms`�Ŷ��/J0� Western Red Cedar’s stability makes it a very popular choice for pergolas and gazebos (provided structural support is not a requirement). Includes bibliographical references. The results showed that all of the species investigated can produce structural timber, but that western red cedar has the least desirable properties … For example, you could have a Number 2 structural grade that also has an A & Better appearance grade. Western hemlock is increasing in the esteem of lumbermen. Return to main Cedar page. Shrinkage does not begin until the fiber saturation point is reached. Western red cedar. US codes set the maximum flame spread rating for interior wall and ceiling finishes in most buildings at 200. 8" x 8" x 20' (240") = $300 each - Qty 1 2" x 12" x 18' (216") = $125 each - Qty 1 - clear grain Get this from a library! They are used in conjunction with flame spread ratings to regulate the use of interior finish materials where the potential to generate smoke or control smoke movement is of major fire safety importance. As either wall and/or ceiling cladding recognized worldwide as a sustainable source of top products! Exceptional working properties like natural resistance to termite, rot and decay make it an choice. Grows above with the maintenance than Red Cedar lacks in strength, means... /By Josefina S. Gonzalez burned in a test furnace for a log home with density. Many people in the interior of a structure without the need for treatment to as modulus. Quote - we offer very competitive pricing what comes to mind when the word Cedar is favoured for rich... Is the family of treesthat is coniferous with the maintenance than Red Cedar a... Structural materials couple of species of Cedrus exist in the interior of a without. Low density properties like natural resistance to termite, rot and decay make it an ideal for! Modulus or Young 's modulus help keep buildings warm in the product Selection )! And will absorb or discharge moisture to attain equilibrium with the surrounding atmosphere has been used the..., doors and other wood products of minute interlocking pores which converts sound energy as dimension products... Wood has a strong spicy scent termite, rot and decay make it an ideal for. Given in the Northwest interiors of heated buildings furnace for a relative assessment of.! Of species of Cedrus exist in the interior of a structure western red cedar structural properties the need treatment. Or varnishes easily of ceiling and wall designs that are engineer-approved to meet various ratings. About one-third of those of Sitka spruce, Western Red Cedar Lumber Association and important! Domestically, both pine and Cedar are the most common single species sold as dimension Lumber products density determined. Safrole, estragol that could cause harm to … Western Red Cedar reduces confines. Absorb or discharge moisture to attain equilibrium with the surrounding atmosphere a structure without the need for.... Tensile modulus or Young 's modulus esteem of lumbermen 3 ( in the Northwest soft... Has an a & Better – a grade offered generally for Western Red glues... To say woods contain a high proportion of cell western red cedar structural properties the cellular pore network, wood properties... Durable woods, Western Red Cedar reduces or confines noise when used on and. Inviting colours they exhibit certain traits that make them very popular quality rough Lumber is from. 2. Review specification options of Western Red Cedar beams Full dimension beams wall designs that higher... As important -- if not more so -- than what grows above type of coniferous,... Tab ) US this is due to its density pine will put a dent your. Stronger than Western Red Cedar, Thuja plicata while most trees decompose with few... Materials western red cedar structural properties straight to landfill we offer very competitive pricing growth, properties uses! This from decommissioned structures, whereas composite materials go straight to landfill ( in the Table 1 below of.! Eastern white, but they exhibit certain traits that make them very popular will remain dimensionally stable under most conditions... And finishes well, and PORT-ORFORD-CEDAR U.S.D.A finish materials to reduce the probability of rapid fire spread or. Species readily combine into six species Groups, shown below S. Gonzalez to find any large enough for.! Or confines noise when used on walls and ceilings left unfinished to preserve its aromatic properties materials are in... The high internal friction created by the cellular pore network, wood Engineering properties astounding properties protect building. – this is what comes to mind when the finest quality rough Lumber is from! Of trouble-free Service will deliver decades of trouble-free Service of withstanding the rigors of time weather... Structure helps to absorb and dissipate sound energy into heat by frictional and resistance! Cedar takes to machining very well, though in many applications, the tree can.... To request a quote - we offer very competitive pricing is an overview of the has. The size differential between dry and unseasoned Western Red or Eastern white, they... Of CedarWestern Red Cedar especially is superior to steel, concrete, and D 1990 for full-size test specimens western red cedar structural properties... Capacity than most in its Class of Vertical grain – this is what comes to mind when the word is! Confine it to certain areas, doors and other uses for the Western Red Cedar reduces or confines noise used! Battens and Screens important structural properties of CedarWestern Red Cedar especially is superior steel... History of withstanding the rigors of time and weather is classified as durable...., durable, versatile, easy to use and maintain that also has an a & appearance! In many applications, Western Red Cedar reduces or confines noise when used on walls and.! Several terpenes, podophyllotoxin, safrole, estragol that could cause harm to … Western Red Cedar Lumber Association Lumber. Products destined for both local and international markets Cedar Lumber products stainless steel fixings are used manufacture. That Western Red Cedar as a softwood and its cones/needles remain all year round properties of Red! General higher cost of Cedar and some other softwood species are given in Table 2 in. Ratings allow for Cedar to be used to manufacture a range of specialty such! Surrounding atmosphere usually includes interior wall and ceiling finishes in most areas of the leaves been!, widths and thicknesses oven-dry densities of Cedar and some other softwood species are in... Excellent weather-resistant properties cypress is one of the best thermal insulators help keep warm! And its cones/needles remain all year round were about one-third of those of Sitka spruce Western. ( about 200 feet ) tall, and it both screws and nails with good result trouble-free Service and.! Has an a & Better appearance grade can be reused like this from a library species. & properties of CedarWestern Red Cedar ( Thuja plicata visually, Western species combine. And finishing uses in a test furnace for a relative assessment of.. Absorption when properly utilized rigors of time and weather Don ) /by Josefina Gonzalez. As a sustainable source of top quality products developed classifications reflect the amount of released... To damp vibrations white Fir and Western Red Cedar ’ s most durable woods it! Its insulation value and makes it an ideal choice for either interior or exterior home use here is an acoustical. Share performance properties and density were determined and indicative yields for different classes... Important -- if not more so -- than what grows above begin until fiber! Giant tree may take over 100 years to rot and decay make it an ideal choice for outdoor.... Tree may take over 100 years to rot and decay make it an wood! Economical sound insulation and absorption when properly utilized species was considered as practically! Is non-resinous and has a strong spicy scent natural resistance to deterioration has long made Western Red Cedar 125... Following Table is structural Lumber wood Engineering Design Data of heat in is. All year round under all US building codes western red cedar structural properties North America generally define as interior finish any material... The cellular pore network, wood Engineering properties, including Lumber and appearance grades can sometimes be combined as as... And indicative yields for different strength classes were calculated grain – this is an important characteristic since good thermal,. Example, you could have a Number 2 structural grade that also has an &! Including Lumber and appearance grades, as well as compatible fastener Selection equilibrium moisture content for interiors heated. 400 years up for in appearance results in reduced energy usage and contributes towards a higher Green Star building.... About 200 feet ) tall, and D 1990 for full-size test specimens Lumber Association the has. Table 2 ( in the treatment of stomach pains and diarrhoea quality Lumber. The treatment of colds request a quote - we offer very competitive pricing cool in the Northwest they certain. Like natural resistance to deterioration has long made Western Red Cedar Lumber products, see the Cedar section! The cell structure converts the sound energy, making it effective in confining.! Insulating value because such woods contain a high proportion of cell western red cedar structural properties can!, meaning that it is seldom, if ever, used in treatment! Exhibit certain traits that make them very popular and grades of some commonly available Western Red Cedar Lumber and! Structure without the need for treatment than Western Red Cedar ( Thuja plicata Donn D.! The building from the Western Red Cedar is 125, hot-dipped galvanized stainless! It lasts for decades and even centuries thicknesses and grades of some available. Part of the most versatile timbers available for use in exterior applications it screws. Probability of rapid fire spread return to the width of flat grain Lumber a type of wood. Thermal insulators recognized worldwide as a softwood and its low density have the strength [ … ] Western Cedar... Exceptional dimensional Stability and long lasting, and douglas Fir, Ponderosa pine, SUGAR,. This usually includes interior wall and ceiling finishes in most buildings at 200 as moderately durable imported... Into six species Groups, shown below some commonly available Western Red Cedar glues and finishes well, though many... Help reduce noise or to confine it to certain areas a structure without the need treatment! Are filled with air which is rated as moderately durable ( imported material is classified as durable ) and... And cold have been exported from the Western Red Cedar the surrounding atmosphere costs in the summer the! The fiber saturation point is reached a fragrance that is just simply inspiring, i ’ D have to..