Radiata pine is commonly regarded as a medium density softwood, with typical average tree basic density values of 400420 kgm3. A high quality face grade and abond glue line makes this product suitable for exterior applications. Bending stiffness is approximately 10% lower in radiata pine plywood. Pdf wood quality considerations for radiata pine in. Zhang 2003 states many forest scientists appear to consider wood density and fibre radiata pine logs are peeled down to a small core by chinese length as. Radiata pine sawn timber buildpro can supply a range of kiln dried sawn timber grades and dimensions to meet your requirements.
Pdf fastgrown plantation wood particularly the juvenile zone can have some limiting performance characteristics stiffness, strength, stability find, read. Proceedings nz friiufro conference 14 december and workshop 5 december, rotorua, new zealand. Panel products, such as plywood, mdf and laminated veneer lumber, are also available from radiata pine. Characteristic values of mechanical properties of radiata. Wood and woodbased products are widely used as interior wall, ceiling, and floor surfaces in all types of buildings. Radiata pine is native to the central coast of california but is widely planted in australia and new zealand. Finishes on the wood may affect the flame spread index depending on the thickness and composition of the finish. The flame spread index may depend on density, thickness, chemical composition, and surface characteristics. Wood quality considerations for radiata pine in international markets article pdf available in new zealand journal of forestry 594 february 2015 with 3,523 reads how we measure reads. Since then the tasmanian radiata pine estate has expanded to more than 55,000ha, largely concentrated in the northeast of the state. Radiata pine acx offers a smooth grain that is virtually defect free, making it visually appealing and ideal for laminating.
It also makes good flooring, veneer, plywood, and both the exterior and interior types of cladding. It makes up 28% of tasmanias timber plantations and is popular in all types of construction and decorative uses. Radiata pine provides about 90% structural timber for industry and is one of the major incomes of the forestry industry in new zealand. Introduction there have been obtained the characteristic values of the mechanical properties of some radiata pine plywood pinus radiata d. Plywood has been one of the most recognized and trusted wood building products for decades. One of the most widely imported species in the world, radiata pine is well suited for a variety of applications. These standards have evolved over time from earlier documents ohalloran 1979, 1980. It can be used for the a wide variety of structural building applications such as structural beams, wall studs, framing, bracing, rafters, joists.
Familiarity with physical properties is important because those properties can significantly influence the performance and strength of wood used in structural applications. Table 1 physical properties of pinus radiata wood from western sudan, southern sudan, and california. Radiata pine plywood the strength properties of small clear specimens. Compressive strength and stiffness of radiata pine laminated. Radiata pine pinus radiata radiata pine is native to the central coast of california but is widely planted in australia and new zealand. In tasmania the first commercial radiata pine plantations were established in the 1930s. Manufactured from thin sheets of crosslaminated veneer and bonded under heat and pressure with strong adhesives, plywood panels have superior dimensional stability and an excellent strengthtoweight ratio and are highly resistant to impacts, chemicals. While not structurally rated, bc radiata pine can be used for many general purposes when a stress grading is. Radiata pine boards with micro finger joint and edge glued. Radiata pine has a number of structural uses including decking, fencing, exterior cladding, window sashes, pergolas, landscaping, shingles, barge boards and exterior trim. The mechanical properties and stability of radiata pine. Appearance, acoustical qualities, and interior design versatility have made wood surfaces highly desired by architects, designers, and building ocupants.
Material safety data sheet wood veneer product carter holt harvey wood products. The above properties also indicate that the western sudan pine wood could be suitable for boat building and plywood production. Below is an overview of the most common kiln dried sawn timber dimensions, grades and specifications. Relationships that show increases in bending properties and compression strength with increases in density were found. The impact bending of western sudan pine was 70 table 2. The results have shown that the average value for the ovendry wood density. Radiata pine is a plantation softwood timber grown widely throughout australia.
The light consistent colour of radiata pine readily accepts stains and its general properties make it ideal for painting. Radiata pine wood anatomy structure and biophysical properties 2003 view open. Many of the mechanical properties of wood tabulated in this chapter. Get free 2day shipping on qualified radiata pine products or buy products today with buy online pick. Knot intergrown, partially intergrown and tight encased. While not structurally rated, bc radiata pine can be used for many general purposes when a stress grading is not required. Mechanical properties of wood forest products laboratory.
These include framing, lining, glue laminated beams, veneer and plywood. This paper describes results of experimental testing of compressive strength and stiffness of laminated veneer lumber lvl manufactured in new zealand from radiata pine. Heartwood is light brown, wide sapwood is a paler yellowish white, and is distinct from the heartwood. Interior uses include cabinetry, furniture manufacturing, paneling, and shelving. Din 68705 part3, bfu 100, en 3142 class 3 application. Sanded plywood is used in a wide variety of applications. Kretschmann contents orthotropic nature of wood 41 elastic properties 42 modulus of elasticity 42 poissons ratio 42 modulus of rigidity 43 strength properties 43 common properties 43 less common properties 424 vibration properties 425. When harvested radiata presents an easily worked log for the peeling of veneers used to make top quality plywood. Radiata is plantation grown and is sustainably harvested. Radiata pine pinus radiata is the worlds most widely planted softwood plantation tree. Excellent for furniture, cabinets, shelving or hobby projects, but can also be used as an underlayment panel. A radiata white pine plywood graded with an a face and a c backside, allowing one good paintgrade face which is clean and free of knots. Perfect for cabinets, crates, fixtures, displays and staircases, the radiata pine plywood panel offers many sanding options, minimal core gaps with a tight core line and a balance of machinability and strength.
Table 3, table 4 show the mechanical properties for this plywood with thick spruce veneers 2. Perfectly carved foursided wood can be used for any project. Material safety data sheet for losp treated plywood page 1 of 4 material safety data sheet wood veneer product chh woodproducts woodlogic. It is fast growing, grown under various forest management systems in new zealand. Pinus radiata, family pinaceae, the monterey pine, insignis pine or radiata pine, is a species of pine native to the central coast of california and mexico guadalupe island and cedros island. Untreated, it can be used for furniture, mouldings, trim and panelling.
Traditionally the new zealand plywood design code has assume ed o to e90 to be 20. Dca1 flame spread performance of wood products used for. Characteristic values of the mechanical properties of. Mediumlarge resin canals, very numerous and evenly distributed, mostly solitary. Wood handbookchapter 4mechanical properties of wood. For pinus radiata the clearwood strength properties, the density, and visual. Bier pinus radiata plywood stressgrades 201 in the following analysis and discussion the density terms are defined as. This material safety data sheet msds is written by carter holt harvey wood products a division of carter holt harvey ltd, arbn 050 319 152 in. Radiata pine plywood the strength properties of small. Highgrade pine is naturally resistant against rot and decay.
Radiata pine stem has large proportion of corewood that tends to be low in stiffness, strength and stability. Radiata pine acx wholesale plywood plywood wholesaler. Radiata pine lumber is plantationgrown, and generally has very wide growth rings and is knotfree. Exterior uses include specialty construction and industrial applications such as fences, soffits, truck and boxcar linings, commercial refrigerators, and other applications in which exposure to high moisture is anticipated and smoothness andor. Losp treated radiata pine plywood technical note 011123. Bier forest research institute, new zealand forest service private bag, rotorua, new zealand 1983 issn 01118129.
Roseburgs ac plus radiata has limited or no defects and has a superior sanded finish that can be naturally finished, stained or painted. Physical and mechanical properties of pinus radiata from. Readily absorbs stains or paint, letting you choose the look. Accoya radiata pine lumber grades a2 minimum grade definition 3 sides primarily clear with allowance of the following. Radiata pine wood anatomy structure and biophysical properties. Sustainable management of pinus radiata plantations. Although this tree is widely cultivated on plantations, natural stands of radiata pine are frequently infected by a fungal disease known as pine pitch canker. Veneer, plywood, paper pulpwood, boxescrates, and construction lumber.
Radiata pine the wood database lumber identification. The properties of clear radiata pine plywood tested in the midl960s are similar to the properties of the plywood tested in 1983. These depend on the properties of each veneer which in turn depend on the intrinsic wood properties and on the size and position of visual characteristics such as knots. Wood properties and visual characteristics are integral to the species and the way it is grown.
The mechanical properties and characteristic values of radiata pine plywood for structural use were measured using the european standards en 789 and en 1058. The mechanical properties and characteristic values of radiata pine plywood for structural use were measured using the european standards en 789 and. Apa 1981 and represent a consensus opinion of the makers, sellers, and users of plywood products as well as other concerned parties. Characteristic values of the mechanical properties of radiata. Changes in the procedures for calculating the flame spread index have also affected the numbers. Sep 11, 20 this paper describes results of experimental testing of compressive strength and stiffness of laminated veneer lumber lvl manufactured in new zealand from radiata pine. Physical and mechanical properties of pinus radiata from jebel. Eight different compositions of panels with thicknesses from 9 to 30 mm were tested. Testing has been performed according to australiannew. Stiffness, strength and stability are major quality criteria of structural timber. This species has a variety of uses including construction lumber, posts, beams, fencing, concrete formers, veneer, plywood, paper, boxes, and crates. Testing has been performed according to australiannew zealand standards and european standards. The perfect plywood choice for any purpose where a stress grade isnt required. Core veneers are composed and welded for solid core line.
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