These properties can vary greatly depending on origin and growth conditions. Shrinkage does not begin until the fiber saturation point is reached. 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. Comparative oven-dry densities of cedar and some other softwood species are given in the Table 1 below. The trees themselves rarely exceed 8" dia. Wood has a cellular network of minute interlocking pores which converts sound energy into heat by frictional and viscoelastic resistance. or 25' high, they branch like crazy, and the wood is only commercially marketed for aromatic purposes (anti-insect) for closet linings and the like. 0000002737 00000 n
Battens and Screens Distribution. Euroclasses grading: END-USES Austin Wholesale Decking Supply 10900 N Lamar Blvd., Austin, TX 78753 Phone: 512/834-1200 The only notable difference is the natural durability which is rated as moderately durable (imported material is classified as durable). 2. Review specification options of Western Red Cedar, including lumber and appearance grades, as well as compatible fastener selection. In dry wood, these cavities are filled with air which is one of the best known thermal insulators. information provided by the Western Red Cedar Lumber Association . These lovely deep green trees give off a fragrance that is just simply inspiring, I’d have to say. Western Red Cedar offers the advantages of natural beauty, design flexibility, exceptional dimensional stability and long term durability. Forest Products Laboratory, Forest Service … It is seldom, if ever, used in modern herbalism. 0000025703 00000 n
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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. 0000002940 00000 n
When a material has good thermal conductivity, it means that it can keep buildings warm in the winter and cool in the summer. �>�5�CO��4�����n�g�3�X�5j]X��Ȇl�VZ�N�1b!H�>�!a�خk-3R+�.Jk��Ms`�Ŷ��/J0� The lower the flame spread rating, the more the material resists the spread of fire. The appealing dark colour, light weight and soft texture makes … Alternate Combinations are available in non-structural grades. In this article, I describe forty facts about the plant and the importance of the “tree of life” in the local culture. Environmental. It is available in clear or knotty grades with smooth surfaced, combed or rough sawn finishes; kiln dried or unseasoned (green); flat grain and vertical grain. This is due to its high proportion of air spaces and its low density. The inherent strength of plywood also offers the added benefit of giving increased structural … Western red cedar, Thuja plicata. It is non-resinous and has a strong spicy scent. Western Red Cedar has flame and smoke development ratings that are higher than most in its class. Environmental. Dimensionally stable, it takes paint, stains or varnishes easily. ¬ The cell structure converts the sound energy into heat by friction and viscoelastic resistance. NLGA grades are approved by the American Lumber Standards Board of Review and are accepted under all US building codes. Wood is extremely durable and long lasting, and can be reclaimed from other projects and reused. DENSITY. Western Red Cedar is used to manufacture a range of specialty products such as siding, paneling, structural decking and outdoor decking. 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. 0000002672 00000 n
American softwoods have the strength […] The structural grades of Yellow Cedar are ideal for uses where strength and/or natural durability are important. 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. The size differential between dry and unseasoned Western Red Cedar is given in Table 2 (in the Product Selection tab). produces cedar of Lebanon, a native of the Middle East. These astounding properties protect the building from the extreme heat and cold. Question: We have specified the use of western red cedar in an office building to be used as either wall and/or ceiling cladding. Cypress is one of the most versatile timbers available for use in exterior applications. Visually, western red cedar is favoured for its rich and inviting colours. (Special publication, ISSN 0824-2119 ; no. 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. Characteristics & Properties of Western Red Cedar, characteristics-properties-of-western-red-cedar. Detailed product information is available from the Western Red Cedar Lumber Association. Fasteners should be corrosion resistant such as aluminum, hot-dipped galvanized or stainless steel. Heartwood varies from dark reddish brown to a pinkish color and has excellent weather-resistant properties. Detailed product information is available from the Western Red Cedar Lumber Association. Timber properties of noble fir, Norway spruce, western red cedar and western hemlock grown in Great Britain (PDF, 580.1kB) The softwood processing sector in Great Britain has been built around the use of a very small number of timber-producing species – predominantly Sitka spruce. 4 knots per 12’ of board is allowable. Flame spreading ratings describe the surface burning characteristics of interior finishes. 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. Western Red Cedar is frequently the material of choice for pure Decorative trusses, but should be checked thoroughly if intended for use in Structural applications. 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. Tree roots can also cause damage of their own, when they break through concrete sidewalks or damage underground pipes. It's stronger than Western red or Eastern white, but you're never going to find any large enough for rafters. Western red cedar trees may grow up to 60 meters (about 200 feet) tall, and they have cinnamon-red or brownish bark. TS/RS ratio: Stability: Crushing strength *: Mean Std dev. The Standard Species Combinations for structurally graded Western lumber are also shown on this page. Wood is an excellent thermal insulator. 1. In this article, I describe forty facts about the plant and the importance of the “tree of life” in the local culture. RESEARCH PAPER FPL 191 . The Western Red Cedar contains a extremely strong compound called trienolone, which is one of the reasons the wood takes so very long to decompose on the forest floor. Medium-to-fine texture. Western Red Cedar is ideal for projects that require stability, natural durability and easy to work with, such as: Outdoor landscape elements:decks, planters, fences, screens, garden furniture and sheds; or exterior siding, roof tiles, interior wall and ceiling panelling, doors and windows, and a variety of joinery items. Grain: Generally straight or spiralled. Floor, ceiling and wall assemblies of wood can provide effective economical sound insulation and absorption when properly utilized. Woods with low density have the highest thermal insulating value because such woods contain a high proportion of cell cavities. Medicinal and Other Uses for the Western Red Cedar. 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. 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. Detailed product information is available from the Western Red Cedar Lumber Association. Comparative oven-dry densities of cedar and some other softwood species are given in Table 1. 0000001686 00000 n
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Structural lumber (including dimension lumber) is visually and/or mechanically (MSR) graded for its strength and physical working properties (appearance is secondary, unless specified). Characteristic values of mechanical properties and density were determined and indicative yields for different strength classes were calculated. 0000002606 00000 n
Includes bibliographical references. 1. Western Red Cedar lumber is available in visual stress grades for construction and finishing uses in a range of lengths, widths and thicknesses. 0000000716 00000 n
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sCf�^�;��(��Ӂ��c����_�Q���3E�����V�q���' WQ�Y��q~OL���A�Օ%���e 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. Cedrus atlantica Manetti produces Atlantic or Atlas cedar, a native of Algeria and Morocco. Our BCA consultant requires confirmation that the western red cedar is a … 0000005160 00000 n
Return to main Cedar page. Find out how to identify this majestic tree and also its benefits and uses. 0000001705 00000 n
Modulus of Elasticity of Wood, Wood Engineering Design Data. Static bending strength *: Modulus of elasticity *: (*: at 12% moisture content, with 1 MPa = 1 N/mm²) % % % % MPa MPa MPa Note: WESTERN RED CEDAR wood tends to split. Comparative oven-dry densities of cedar and some other softwood species are given in the Table 1 (in the Product Selection tab).Cedar’s low density enhances its insulation value and makes it an easy wood to transport and handle. The wonderful properties of CedarWestern Red Cedar is quality, beautiful, durable, versatile, easy to use and maintain. For structural applications, Western species readily combine into six Species Groups, shown below. Western Red Cedar Harmful Properties May cause respiratory problems Western Red Cedar Interlocked Grain No Western Red Cedar Kiln-dried Shrinkage Low Western Red Cedar Machine Tools Average Western Red Cedar Mortising Good Western Red Cedar Movement after drying Low Western Red Cedar … The smoke developed index for Western Red Cedar is 125. I. 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. Domestically, both pine and cedar are harvested mainly in the Northwest. 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. Stumpage prices in 1927 were about one-third of those of Sitka spruce, western red cedar, and Douglas fir. Western red cedar will remain dimensionally stable under most weather conditions and is not prone to shrinkage or swelling. [B A Bendtsen; Forest Products Laboratory (U.S.)] 0000001473 00000 n
Douglas Fir, Ponderosa Pine, White Fir and Western Red Cedar are the most common single species sold as dimension lumber products. Vertical grain means that the growth rings are parallel to each other on the face of the board and the wood is sawn specifically to achieve that look. 0000011118 00000 n
The conduction of heat in wood is directly related to its density. Lengths are generally a few inches longer than the listed length. Precautions and toxicity of red cedar. 0000002446 00000 n
It is also a recognized structural material with known mechanical and physical properties. 234 0 obj <>
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Cedrus libani Loud. Materials are burned in a test furnace for a relative assessment of flammability. 8" x 8" x 20' (240") = $300 each - Qty 1 2" x 12" x 18' (216") = $125 each - Qty 1 - clear grain Like all woods, Western Red Cedar is hygroscopic and will absorb or discharge moisture to attain equilibrium with the surrounding atmosphere. It is non-resinous and has a strong spicy scent. Includes bibliographical references. 1. Western Red Cedar’s open cellular structure helps to absorb and dissipate sound energy, making it effective in confining noise. For example, you could have a Number 2 structural grade that also has an A & Better appearance grade. There are few more versatile building materials than Western Red Cedar which is ideal both for indoor and outdoor uses. What Western Red Cedar lacks in strength, it makes up for in appearance. Mechanical Properties of Clear Straight-Grained Wood 4–26 Natural Characteristics Affecting Mechanical Properties 4–27 Specific Gravity 4–27 ... Cedar, western red 0.055 0.081 0.087 0.086 0.005 Douglas-fir 0.050 0.068 0.064 0.078 0.007 Fir, subalpine 0.039 0.102 0.070 0.058 0.006 With its low density and high proportion of air spaces, Western Red Cedar is the best thermal insulator among the commonly available softwood species and is far superior to brick, concrete and steel. Tree roots stabilize and feed the tree, and if they are damaged by yard tools, the tree can suffer. This is an important characteristic since good thermal insulators help keep buildings cool in the summer and reduce heating costs in the winter. Believed available from well-managed sources. 3. 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. 2. Western Red Cedar is the largest and most abundant of all cedars in managed forests. Western Red Cedar’s stability makes it a very popular choice for pergolas and gazebos (provided structural support is not a requirement). When a material has good thermal conductivity, it means that it can keep buildings warm in the winter and cool in the summer. 15% is the average equilibrium moisture content of wood during the summer in the Pacific Northwest. Of all available softwood species, cedar tends to be one of the best thermal insulators. Shrinkage in both the radial and tangential directions is given in Table 3 (in the Product Selection tab). Softwoods have been exported from the United States for over 400 years. I believe red cedar will cost more than twice as much in Western Mass for a log home. What lies beneath a tree is just as important -- if not more so -- than what grows above. Western Red Cedar is particularly effective in this regard and can be used to help reduce noise or to confine it to certain areas. (Special publication, ISSN 0824-2119 ; no. Trucking from the west coast, and the general higher cost of cedar vs. pine will put a dent in your wallet. British grown western red cedar generally has similar properties to material imported from North America. 1972 . It contains several terpenes, podophyllotoxin, safrole, estragol that could cause harm to … 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. 12% is the summer average equilibrium moisture content in most areas of the US. Colour: Yellow to a medium brownish colour. ����{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��׃> IMPORTANT STRUCTURAL PROPERTIES OF FOUR WESTERN SOFTWOODS: WHITE PINE, SUGAR PINE, WESTERN REDCEDAR, AND PORT-ORFORD-CEDAR U.S.D.A. Not listed in CITES. rȋ8��/�Jy These superior ratings allow for cedar to be used in the interior of a structure without the need for treatment. 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. Western Red Cedar is used to manufacture a range of specialty products such as siding, paneling, structural decking and outdoor decking. ACOUSTIC PROPERTIES ¬ Western Red Cedar reduces or confines noise when used on walls and ceilings. 0000001538 00000 n
Western Red Cedar is frequently the material of choice for pure Decorative trusses, but should be checked thoroughly if intended for use in Structural applications. Softwoods have been exported from the United States for over 400 years. 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. An important acoustical property of wood is its ability to damp vibrations. The flame spread rating for Western Red Cedar is 45 (Class B rating). The essential oil of red cedar is toxic. Of all available softwood species, cedar tends to be one of the best thermal insulators. Western red cedar also delivers impressive acoustic properties. Sizes of rough and dressed Western Red Cedar are shown in Tables 1 and 2. The cost of logging western hemlock is ordinarily high as com- Important structural properties of four Western softwoods : white pine, sugar pine, western redcedar, and Port-Orford-cedar. Western Red Cedar Beams Full dimension beams. Cedar has a long history of withstanding the rigors of time and weather. 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. Today, America is recognized worldwide as a sustainable source of top quality products. No 2 & Better – A grade offered generally for Western Red Cedar timbers and beams when the finest quality rough lumber is desired. SP-37R) Co-published by Western Red Cedar Lumber Association and Western Red Cedar Export Association. Western Red Cedar especially is superior to steel, concrete, and brick in this respect. Cedar is a type of coniferous wood, meaning that it is classified as a softwood and its cones/needles remain all year round. Add to the fact the specie is highly durable, and the result is both a pergola with a ‘wow’ factor, plus years of sheltered entertaining. Check certification status with suppliers. Western hemlock is increasing in the esteem of lumbermen. Customers who choose western red cedar are reducing their material consumption versus other building materials. Natural resistance to deterioration has long made Western Red Cedar the premier choice for either interior or exterior home use. Lengths are generally a few inches longer than the listed length. Click here to request a quote - we offer VERY competitive pricing! Western red cedar, Thuja plicata. The only notable difference is the natural durability which is rated as moderately durable (imported material is classified as durable). For nominal widths, thicknesses and grades of some commonly available Western Red Cedar lumber products, see the Cedar Products section. Add to the fact the specie is highly durable, and the result is both a pergola with a ‘wow’ factor, plus years of sheltered entertaining. 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. }��MT_�5���L�0��P�ȅg��&�5Eo!�2Y��%�Z���-���n��\H��wDa���nZr�1�]�������ID�~�g���
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�hBaL. syn. Because of the high internal friction created by the cellular pore network, wood has more sound damping capacity than most structural materials. Western Red Cedar’s stability makes it a very popular choice for pergolas and gazebos (provided structural support is not a requirement). Clear, Vertical Grain – This is the highest grade of Western Red Cedar. The most sought after property of Western Red Cedar is its resistance to decay and insect damage, lasting in most any environment well over 100 years. Modulus of elasticity also referred to as Tensile Modulus or Young's Modulus. Smoke developed classifications reflect the amount of smoke released by burning material. Due to its soft properties, Western Red Cedar takes to machining very well, and it both screws and nails with good result. Here is an overview of the characteristics that determine the grades of Western Red Cedar: Clear Western Red Cedar. They are used to regulate the use of interior finish materials to reduce the probability of rapid fire spread. Western Red Cedar especially is superior to steel, concrete, and brick in this respect. SP-37R) Co-published by Western Red Cedar Lumber Association and Western Red Cedar Export Association. 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. 0000003840 00000 n
Cedar's low density enhances its insulation value and makes it an easy wood to transport and handle. Growth, properties and uses of western red cedar (Thuja plicata Donn ex D. Don)/by Josefina S. Gonzalez. One of these is the Western Red Cedar, also called the giant cedar tree, which can grow to well over 200 feet tall! Because of its favorable performance, Western Red Cedar can be used for interior finish in some building applications where other species would not be permitted. For many people in the US this is what comes to mind when the word cedar is … Growth, properties and uses of western red cedar (Thuja plicata Donn ex D. Don)/by Josefi na S. Gonzalez. Properly finished and maintained, cedar will deliver decades of trouble-free service. While most trees decompose with a few years, this giant tree may take over 100 years to rot and return to the soil. Very few materials can be reused like this from decommissioned structures, whereas composite materials go straight to landfill. 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. The following table is Structural Lumber Wood Engineering Properties. Not listed in CITES. Cedar and pine are two common options used for many building projects, both of which have a variety of subspecies scattered around the world. This results in reduced energy usage and contributes towards a higher Green Star building rating. Today, America is recognized worldwide as a sustainable source of top quality products. Western species readily combine into six species Groups, shown below building.... Approved by the cellular pore network, wood Engineering Design Data Standard species Combinations for graded. Resistance to deterioration has long made Western Red Cedar are the many Cedar artifacts still in condition! 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