Span Tables Spans for Western Red Cedar dimension lumber used as joists and rafters in residential and commercial structures are available from the Western Red Cedar Lumber Association, the Canadian Wood Council and the National Association of Home Builders. Historically, native peoples of the Pacific coast prized cedar for its long lasting qualities and used wood and bark from cedar trees for most of their building needs. %PDF-1.3 %���� Physical & Mechanical Properties A coarse-textured softwood, weighing 376 kg per cubic metre, with a close, uniform, straight grain and an extreme resistance to decay. The structural grades of Yellow Cedar are ideal for uses where strength and/or natural durability are important. Includes bibliographical references. 0000004778 00000 n Western Red Cedar is the largest and most abundant of all cedars in managed forests. 0000001473 00000 n It has a coefficient of thermal conductivity (k value) at 12% mc of 0.74 BTU inch/ft2h degrees F. The R value (the reciprocal of k) for Western Red Cedar is 1.35″ (34mm) of thickness. As Hokie says, Eastern Red Cedar is a juniper. Twenty years ago the species was considered as having practically no value. It is found as a tree or shrub. Odor: Aromatic Red Cedar has a distinct and tell-tale scent: the wood is commonly used in closets and chests to repel moths and other insects. 2. For many people in the US this is what comes to mind when the word cedar is … The results showed that all of the species investigated can produce structural timber, but that western red cedar has the least desirable properties … Radial shrinkage applies to the width of vertical grain lumber: tangential to the width of flat grain lumber. Materials are burned in a test furnace for a relative assessment of flammability. 0000026040 00000 n While most trees decompose with a few years, this giant tree may take over 100 years to rot and return to the soil. RESEARCH PAPER FPL 191 . 3. Western Red Cedar has good fastening properties but its natural preservatives have a corrosive effect on some unprotected metals in close contact, causing a black stain on the wood. NLGA grades are approved by the American Lumber Standards Board of Review and are accepted under all US building codes. Western red cedar also delivers impressive acoustic properties. Like all woods, Western Red Cedar is hygroscopic and will absorb or discharge moisture to attain equilibrium with the surrounding atmosphere. British grown western red cedar generally has similar properties to material imported from North America. The inherent strength of plywood also offers the added benefit of giving increased structural … Not listed in CITES. Western Red Cedar lumber is available in visual stress grades for construction and finishing uses in a range of lengths, widths and thicknesses. ¬ The open cell structure of the timber is able to absorb and dissipate sound energy. What Western Red Cedar lacks in strength, it makes up for in appearance. I believe red cedar will cost more than twice as much in Western Mass for a log home. Structural lumber (including dimension lumber) is visually and/or mechanically (MSR) graded for its strength and physical working properties (appearance is secondary, unless specified). Wood is an excellent thermal insulator. Detailed product information is available from the Western Red Cedar Lumber Association. Today, America is recognized worldwide as a sustainable source of top quality products. produces cedar of Lebanon, a native of the Middle East. It's stronger than Western red or Eastern white, but you're never going to find any large enough for rafters. 8" x 8" x 20' (240") = $300 each - Qty 1 2" x 12" x 18' (216") = $125 each - Qty 1 - clear grain Fasteners should be corrosion resistant such as aluminum, hot-dipped galvanized or stainless steel. What lies beneath a tree is just as important -- if not more so -- than what grows above. In dry wood, these cavities are filled with air which is one of the best known thermal insulators. changeable in that they share performance properties and are similar in appearance. Medium-to-fine texture. There are few more versatile building materials than Western Red Cedar which is ideal both for indoor and outdoor uses. Western Red Cedar’s open cellular structure helps to absorb and dissipate sound energy, making it effective in confining noise. It is non-resinous and has a strong spicy scent. One of the lightest commercial softwoods, the density of Western Red Cedar at oven-dry conditions is approximately 21 pounds per cubic foot with a relative density (specific gravity) of 0.32. Western Red Cedar’s stability makes it a very popular choice for pergolas and gazebos (provided structural support is not a requirement). Cedar and pine are two common options used for many building projects, both of which have a variety of subspecies scattered around the world. Our BCA consultant requires confirmation that the western red cedar is a … If exposed for prolonged periods to conditions where decay could be a factor, such as where the wood is in contact with the ground, cedar should be treated with suitable wood preservatives. )6f���e��F�y:��lݳ�_�WU�Q���4�:d,��֭� [W����%���١`1�� ���5.�L� �������)!qM sCf�^�;��(��Ӂ��c����_�Q���3E�����V�q���' WQ�Y��q~OL���A�Օ%���e ��(p�Z� For many people in the US this is what comes to mind when the word cedar is … Choosing the right type of wood for your project requires a little background knowledge of the traits of different woods. Western red cedar, Thuja plicata. Western Red Cedar offers the advantages of natural beauty, design flexibility, exceptional dimensional stability and long term durability. 6% is the average equilibrium moisture content for interiors of heated buildings. The lower the flame spread rating, the more the material resists the spread of fire. Forest Products Laboratory, Forest Service … Western red cedar is a large softwood that grows in British Columbia and some of the nearby western states of the USA including Washington, Oregon, Montana and Idaho. 8" x 8" x 20' (240") = $300 each - Qty 1 2" x 12" x 18' (216") = $125 each - Qty 1 - clear grain Western Red Cedar is used to manufacture a range of specialty products such as siding, paneling, structural decking and outdoor decking. 0000003840 00000 n Softwoods have been exported from the United States for over 400 years. Examine Western Red Cedar as a building material in order to understand its durable and sustainable properties. Herb: Western Red Cedar Latin name: Thuja plicata Synonyms: Thuja gigantea, Thuja lobbii, Thuja menziesii Family: Cupressaceae (Cypress Family) Medicinal use of Western Red Cedar: Western red cedar was employed medicinally by a number of native North American Indian tribes, who used it to treat a wide range of complaints. FOREST SERVICE . 1. Western hemlock is increasing in the esteem of lumbermen. Colour: Yellow to a medium brownish colour. The only notable difference is the natural durability which is rated as moderately durable (imported material is classified as durable). Fasteners should be corrosion resistant such as aluminum, hot-dipped galvanized or stainless steel. Believed available from well-managed sources. Alternate Combinations are available in non-structural grades. 0000025703 00000 n IMPORTANT STRUCTURAL PROPERTIES OF FOUR WESTERN SOFTWOODS: WHITE PINE, SUGAR PINE, WESTERN REDCEDAR, AND PORT-ORFORD-CEDAR U.S.D.A. Cedar produced by the Western Red Cedar Lumber Association includes specialty end use grades as well as products graded to National Lumber Grading Authority (NLGA) rules. 1. Nails and screws used to fasten Western Red Cedar should ����{ᚏOS ^��\A(�O.���3U����x��������$�5͘q�[U�����[1�,f��lh_a��A|����������&y���M��[p(��s{���4�3)�s� �H5�2�;�x���'��,����S/“X��6w���0���y��@̶�A�R�][��P�hw�yK���M�͆.ۼ��^s��׃> Western red cedar is one of the most commercially valuable species. However, it has a very low shrinkage factor and is superior to all other coniferous woods in its resistance to warping, twisting and checking. It is non-resinous and has a strong spicy scent. It is seldom, if ever, used in modern herbalism. One of the lightest commercial softwoods, the density of Western Red Cedar at oven-dry conditions is approximately 22 pounds per cubic foot with a relative density(specific gravity) of 0.35. 1972 . Believed available from well-managed sources. No 2 & Better – A grade offered generally for Western Red Cedar timbers and beams when the finest quality rough lumber is desired. Characteristics & Properties of Western Red Cedar, characteristics-properties-of-western-red-cedar. Historically, western red cedar (also known as western redcedar) was a very important plant for the indigenous or First Nations people who lived in the coastal area. Cedar's low density enhances its insulation value and makes it an easy wood to transport and handle. Western Red Cedar is used to manufacture a range of specialty products such as siding, paneling, structural decking and outdoor decking. 2. Review specification options of Western Red Cedar, including lumber and appearance grades, as well as compatible fastener selection. ... and depth-effect adjustments are provided for Structural Decking. These lovely deep green trees give off a fragrance that is just simply inspiring, I’d have to say. Evidence of cedar’s durability are the many cedar artifacts still in good condition today. 0000001686 00000 n I. The results showed that all of the species investigated can produce structural timber, but that western red cedar has the least desirable properties for this purpose. These superior ratings allow for cedar to be used in the interior of a structure without the need for treatment. Flame spreading ratings describe the surface burning characteristics of interior finishes. Softwoods have been exported from the United States for over 400 years. Cypress is one of the most versatile timbers available for use in exterior applications. Historically, western red cedar (also known as western redcedar) was a very important plant for the indigenous or First Nations people who lived in the coastal area. Environmental. Question: We have specified the use of western red cedar in an office building to be used as either wall and/or ceiling cladding. Western red cedar was employed medicinally by a number of native North American Indian tribes, who used it to treat a wide range of complaints. Western red cedar. 0000001538 00000 n Western red cedar will remain dimensionally stable under most weather conditions and is not prone to shrinkage or swelling. Western red cedar. Shrinkage in both the radial and tangential directions is given in Table 3 (in the Product Selection tab). 0000002672 00000 n 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. When a material has good thermal conductivity, it means that it can keep buildings warm in the winter and cool in the summer. Visually, western red cedar is favoured for its rich and inviting colours. Smoke developed classifications reflect the amount of smoke released by burning material. Woods with low density have the highest thermal insulating value because such woods contain a high proportion of cell cavities. Of all available softwood species, cedar tends to be one of the best thermal insulators. The simple cell structure of softwoods’ long, uniformly packed fibers gives them a high strength-to-weight ratio, making them flexible and capable of bearing heavy loads. A decoction of the leaves has been used in the treatment of colds. This is due to its high proportion of air spaces and its low density. Battens and Screens 15% is the average equilibrium moisture content of wood during the summer in the Pacific Northwest. Demonstrate Western Red Cedar’s versatility as a building material through three case studies }��MT_�5���L�0��P�ȅg��&�5Eo!�2Y��%�Z���-���n��\H��wDa���nZr�1�]�������ID�~�g��� ��^��WÃ�D�q�� KR;Q����ipu�L#���kdY���o �hBaL. Our access to a diverse and unique species mix coupled with our unparalleled investment in manufacturing supports us in meeting our customers’ need for a consistent and reliable supply of quality products. 0000011118 00000 n Design values provided for Western softwood species manufactured and shipped by mills in the 12 contiguous Western states and Alaska. Cedrus libani Loud. 0000000716 00000 n In this article, I describe forty facts about the plant and the importance of the “tree of life” in the local culture. The cost of logging western hemlock is ordinarily high as com- C. libanotica Loud. 0000001705 00000 n Tree roots can also cause damage of their own, when they break through concrete sidewalks or damage underground pipes. The Standard Species Combinations for structurally graded Western lumber are also shown on this page. Growth, properties and uses of western red cedar (Thuja plicata Donn ex D. Don)/by Josefina S. 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