We supply our own boise cascade manufactured versalam laminated veneer beams and headers. Conference paper pdf available february 2017 with 253 reads. Lvl offers several advantages over typical milled lumber. Laminated veneer lumber lvl bulletin puutuoteteollisuus. Evergreen engineering grew out of the wood products industries in the northwest united. Laminated veneer lumber is an industry standard in the framing of new buildings and is used to replace solid wood beams and joists in renovating existing buildings. Boise cascade owns and operates the worlds two largest laminated veneer lumber lvl and ijoist manufacturing plants in alexandria, louisiana and white city, oregon. This epd was developed in compliance with iso 14025 and iso 21930 and has been verified under ul. Laminated veneer lumber lvl is a structural timber product which has been widely used for a wide range of structural and nonstructural applications during the last decades. Made in a factory under controlled specifications, it is stronger, straighter, and more uniform. Versalam laminated veneer beams and headers eliminate twisting, shrinking and splitting, and deliver flatter, quieter floors.
West fraser expanded further in 2007 when the company acquired. Lvl lumber laminated veneer lumber ultralam official. Lvl products are often specified where a certain span, strength andor stiffness is required. The watershed stability overlay wso product has a clear thin resin paper layer adhered to the surface. The strength is in the engineering lp solidstart lvl is made from ultrasonically and visually graded. Fire development and behaviour and the effects of fire on. With hychord, designers can confidently exploit the excellent strength properties for minimum sections, and then utilise the predicted deflection performance to apply just the right amount of camber to ensure flat ceilings. Laminated veneer lumber lvl is a highstrength engineered wood product used primarily for structural applications. Pdf laminated veneer lumber lvl is recently available in indonesian markets. At this extremely low level of emission approximately 50% of the formaldehyde measured has been emitted naturally by the wood itself.
Sized to match our bci joists and other elements of the simple framing system, versalam offers quick assembly and is precision cut into more than 18 standard sizes. Kerto lvl delivers its high strength from the homogeneous bonded structure. Due to its composite nature, lvl is much less likely to warp, twist, or shrink. It is typically used for headers, beams, rimboard, and edgeforming material. It is manufactured by bonding rotary peeled or wood veneers that have been sliced thinly under heat and pressure first developed in the 1970s, lvl is used as a costeffective and sustainable building. Woodbased composites are used for a number of structural and nonstructural applications. Murphy laminated veneer lumber lvl is made with wood veneers laminated with grain parallel to the length of the member in accordance with the inplant manufacturing standard approved by apa. Lp solidstart laminated veneer lumber lvl is a vast improvement over traditional lumber. Laminated veneer lumber 103 pressure treated glulam beam 3 actual thickness. Fire performance of connections in laminated veneer lumber. Laminated veneer lumber lvl is stronger and more stable with a higher strengthtoweight ratio than conventional solid sawn lumber. Laminated veneer lumber lvl, also known as parallellaminated veneer, is one of the most suitable products for the dispersion of natural defects of wood knots, etc.
Steico lvl laminated veneer lumber engineered by nature. The complex technological process results in a homogenous material with unique performance. Laminated veneer lumber lvl is a structural timber product which has been widely used for a wide range of structural and nonstructural applications during. Laminated veneer lumber lvl is a type of highstrength engineered timber that can be used as an alternative to solid timber, concrete and steel for structural applications. The design of multiple bolted connections in accordance with appendix e of the national design specification for wood construction nds has incorporated provisions for evaluating localized member failure modes of. Kerto lvl is produced from 3 mm thick, rotarypeeled softwood.
Laminated veneer lumber lvl safety data sheet product identifier laminated veneer lumber lvl other means of identification lvl wood products west fraser lvl, secondary hwy 752, rocky mountain house, ab, t4t 1b3 recommended use sds no. Redlam laminated veneer lumber specification information. Identification manufacturer supplier the product is used for building. Evironmental product declaration of north american. It is comparable in strength to solid timber, concrete and steel and is manufactured by bonding together rotary peeled or sliced thin wood veneers under heat and pressure. Manufactured in marsden point, new zealand, futurebuild laminated veneer lumber lvl is available in a variety of sizes and lengths. Fire performance of connections in laminated veneer lumber i acknowledgements first of all i would like to thank my supervisors, professor andy buchanan and associate professor peter moss, for their enthusiasm for the topic, ideas, support, and guidance. Top 5 laminated veneer lumber lvl brands the spruce. Lvl can be produced with higher yields, in a greater range of dimensions and shapes, and with less time and labor than. Our products are used across residential, commercial, industrial, formwork and scaffolding applications. The purpose of this research was to produce material data sets for future modelling of laminated veneer lumber lvl to aid in a more robust numerical modelling effort of connection systems. In europe, the market of engineered lumber products still grows faster than construction, whereas in north america they have become mature products exposed to market cycles. Charring, fire performance, ignition, laminated veneer lumber, lvl 1.
The wood veneer from monopetalanthus species was heated under different temperatures 120 c, 160 c, 200 c, and 240 c and then laminated as the surface of laminated veneer lumber lvl. Laminated veneer lumber environmental product declaration the american wood council awc and canadian wood council cwc are pleased to present this environmental product declaration epd for north american laminated veneer lumber lvl. Kerto lvl is incredibly strong and dimensionally stable. Test material the lvl used in these tests was manufactured in new zealand by carter holt harvey ltd using veneers 3 mm thick, glued into panels of up to 105 mm thickness. Sized to match our bci joists and other elements of the simple framing system, versa. It is typically used for headers, beams, rim board, and edgeforming material.
Th w d p d t c ilthe woodproducts council i r i t d p id. Flexural properties of forest service laminated veneer lumber. Laminated veneer lumber is costeffective, sustainable, strong, lightweight, uniform and has high structural reliability as compared to milled lumber. Three types of reinforcement materials, a carbon fiberreinforced polymer cfrp sheet, a glass fiberreinforced polymer gfrp mesh, and a composite of the cfrp sheet and gfrp mesh, were used to reinforce poplar laminated veneer lumber lvl, and the multistep hotpressing method was also applied. A comparative study on the mechanical properties of laminated. Problems that naturally occur as sawn lumber dries twisting, splitting, checking, crowning and warping. Laminated veneer lumber lvl is defi ned as a woodbased composite consisting of veneers, glued together predominantly parallel to the grain in adjacent layers which may have crossband veneers. Health product declaration hpd redbuilt redlam lvl. Flexural properties of laminated veneer lumber manufactured from ultrasonically rated red maple veneer a pilot study xiping wang, research associate natural resources research institute university of minnesota, duluth, minnesota and forest products laboratory, madison, wisconsin robert j. Murphy lvl is available with thicknesses up to 7 inches, widths up to 24 inches, and lengths up to 80 feet. Laminated products with a slightly aromatic resinous and natural wood color.
When making a selection below to narrow your results down, each selection made will reload the page to display the desired results. Declared product north american laminated veneer lumber lvl reference pcr fp innovations. Lvl beams are available in smaller sizes that can be easily hauled to a location by hand, and screwed together to form a larger member that will meet requirements to carry a load. Vertically laminated veneer lumber lvl panels engineered wood. Pdf evaluation of mechanical properties of reinforced.
Laminated veneer lumber lvl designing buildings wiki. Structural composite lumber scl apa the engineered wood. Field notching and drilling of laminated veneer lumber ews g535a june 2010 introduction laminated veneer lumber lvl is an engineered wood product manufactured from specially selected veneers of varying strength and stiffness properties. Evironmental product declaration of north american softwood. Laminated veneer lumber lvl is a highstrength enineered wood product usded primarily for structural appliances.
Safety data sheet sds everedge laminated veneer lumber. Made in a factory under controlled specifications, it is stronger, straighter, and. Laminated veneer lumber lvl is an engineered wood product that uses multiple layers of thin wood assembled with adhesives. The individual layers in lvl, known as veneers, are obtained by peeling larger softwood pieces to then glued together with the grain in each layer oriented along the length of the lvl product. The wood grain of veneers or strands is primarily oriented in the same.
Safety data sheet according to 29cfr19101200 and ghs rev. Rotary peeled wood veneers, usually pine or fir, are dried then laminated together with glue and resins under heat and high pressure to. Andrea frangi for giving his opinion on the research and. Flexural properties of forest service laminated veneer. Gilbert, b tony dakin, a and adam faircloth a rotary veneers from spotted gum corymbia citriodora and white cypress pine logs callitris glaucophylla recovered from the native forest in queensland, as. A comparative study on the mechanical properties of laminated veneer lumber lvl produced from blending various wood veneers.
Boise cascade manufactures and markets engineered wood products ewp. Strength modelling of laminated veneer lumber lvl beams. It is manufactured by bonding rotary peeled or wood veneers that have been sliced thinly under heat and pressure. Everedgelaminated veneer lumber lvl with watershed stability overlay wso synonyms andor grades. They are a dense, highstrength laminated veneer lumber made of wood and glue, which are available in many different sizes.
It is comparable in strength to solid timber, concrete and steel and is manufactured by bonding together rotary peeled or sliced thing wood veneers under head and pressure note. Introduction fire is one of the most unpredictable and dangerous accidents that may occur in our environment, especially in residential buildings. Laminated veneer lumber an overview sciencedirect topics. Laminated veneer lumber lvl designing buildings wiki share your construction industry knowledge. Engineered to precise design values and with a very high strengthtoweight ratio, lvl panels are suitable for structural wall, floor and roof applications. Formaldehyde emissions from plywood and laminated veneer lumber. Lvl properties significantly exceed those of solid wood, glulam and highgrade timber. Lsl, simply defined, is an engineered wood product used primarily as an alternative to traditional lumber and other engineered wood products like laminated veneer lumber lvl and glulam. Installing lvl beams during a residential remodel laminated.
Structural composite lumber scl apa the engineered. Laminated veneer lumber lvl, also known as parallel laminated veneer, is one of the most suitable products for the dispersion of natural defects of wood knots, etc. Laminated veneer lumber lvl is an engineered wood product consisting of multiple thin layers of wood held together with a synthetic adhesive. Laminated veneer lumber specification by bureau of indian standards. Structural composite lumber scl, which includes laminated veneer lumber lvl, parallel strand lumber psl, laminated strand lumber lsl and oriented strand lumber osl, is a family of engineered wood products created by layering dried and graded wood veneers, strands or flakes with moisture resistant adhesive into blocks of material known as. These building products provide improved structural characteristics that use wood fiber more efficiently.
Laminated veneer lumber lvl beams eliminate twisting, shrinking and splitting and deliver flatter, quieter floors and structures. Problems that naturally occur as sawn lumber dries twisting, splitting, checking, crowning and warping are greatly reduced. A comparative study on the mechanical properties of. Metsa woods kerto lvl is a laminated veneer lumber product used in all types of construction projects, from new buildings to renovation and repair. Lvl can be produced with higher yields, in a greater range of dimensions and shapes, and with less time and labor than glued laminated timber or. The wood component of these products may consist of aspen, douglas fir, western hemlock, southern yellow pine or yellow poplar. Multiple pieces typically used in pairs can be fastened together to obtain greater thicknesses resulting in greater strength to carrysupport heavier loads. Owing to this, it is utilized for various structural purposes in wooden houses, industrial warehouses, public buildings and large prefabricated buildings.
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