what is wisa plywood

"WISA plywood is considered a valuable ingredient in our profession and is equally valued in our Department at Kingston School of Art. +358 (0)204 15 113Fax +358 (0)204 15 112. WISA Trans X is a structural quality, tough, slip-resistant birch plywood suitable for a wide range of demanding anti slip flooring applications. WISA-Sprucefloor is a sustainable, purpose made plywood panel specifically designed for flooring. Plywood is a widely recognized engineered wood-based panel product that has been used in Canadian construction projects for decades. For more information see our Privacy Policy. All plywoods bind resin and wood fibre sheets (cellulose cells are long, strong and thin) to form a composite material. Reverse side permitting jointed veneers, large knots, plugs, etc. Learn More. The demand for more sustainable construction is trending, thus boosting the demand for our WISA plywood, a structurally strong carbon storing and renewable building material. Nicknamed "The Wooden Wonder" plywood was used for the wing surfaces, and also flat sections such as bulkheads and the webs of the wing spars. WISA-Multifloor is an ideal flooring material for the varied needs of the transport and construction industries. Shear stress, by contrast, is higher in the center of the panel, and at the outer fibres. All the veneers in WISA birch plywood are made of birch. Plywood panels manufactured for structural applications are built up from multiple layers or plys of softwood veneer that are glued together so that the grain direction of each layer of veneer is perpendicular to that of the adjacent layers. The panels are tongued and grooved on all four sides making installation and use easy and effortless. As a result, thicker panels can span greater distances under the same loads. High wear-resistance properties for truck, trailer, industrial and mezzanine flooring. Learn More. 12mm Latvian Birch Plywood Throughout BB/CP 2440mm x 1220mm (8′ x 4′) Birch plywood is made from only Birch veneers of the same thickness, glued and laid up in alternating directions to the required thickness. Within Europe basic plywood can be divided into three main categories: birch plywood (density approx. This bio-innovation is a perfect example of UPM’s Biofore thinking in action: Firstly, it is a sustainable alternative. The raw materials come from sustainably managed Northern forests. Plywood is also used as an engineering material for stressed-skin applications. It is made of environmental certified Nordic Spruce and is an ideal panel for structural uses and load bearing applications like roofing, flooring, wall sheeting, packaging and joinery. It thus provides a superbly consistent strong panel with known engineering characteristics. It is a good-quality, hardwood plywood made with waterproof glue, but since it's not treated with chemicals it is not rot-resistant. There are several certifications available to manufacturers who participate in these programs. All the veneers in WISA spruce plywood are made of spruce. Face veneers with only a few small knots or discolorations. WISA BioBond is a new bio-based bonding solution for producing plywood. If you cannot find your country from the drop-down menu below, ask your nearest sales contact listed under the section Industrial Sales. 5 × 5 feet (1,500 × 1,500 mm) is also a common European size for Baltic birch ply, and aircraft ply.[20]. Marine plywood can be graded as being compliant with BS 1088, which is a British Standard for marine plywood and IS:710 is Bureau of Indian Standards (BIS) for marine grade plywood. WISA-Sprucefloor is a sustainable, purpose made plywood panel specifically designed for flooring.Unique to the UK market, it is used in house building, light industrial construction and commercial applications. Originally from the Asian region, it is now also manufactured in African and South American countries. BB as very little knots of less than 1/4 inches, slight discoloration, no decay, split and wormholes mended skillfully, matched colors, no blister, no wrinkle. This is a type of tree that has seeds that are enclosed, be it in pods, a shell, a covering or in a fruit. [2], The ancient Egyptians and Greeks cut wood thinly and glued it together in layers with the grain in perpendicular directions, making a versatile building material. Skateboard ramps often utilize plywood as the top smooth surface over bent curves to create transition that can simulate the shapes of ocean waves. For these coated plywoods there are some end uses where reasonable strength is needed but the lightness of spruce is a benefit, e.g. Mirror construction plywood made from birch and spruce veneers bonded together in a cross banded construction. Aviation-grade plywood is manufactured to a number of specifications including those outlined since 1931 in the Germanischer Lloyd Rules for Surveying and Testing of Plywood for Aircraft and MIL-P-607, the latter of which calls for shear testing after immersion in boiling water for three hours to verify the adhesive qualities between the plies and meets specifications. Jack Köper of Cape Town designed the plywood Dabchick sailing dinghy, which as of 2015[update] is still sailed by large numbers of teenagers. You may decline cookies if you wish. in trailers, horse boxes and railway wagons and building applications such as warehouses, loading platforms and scaffolding. anise of plywood. Basswood is another type of aviation-grade plywood that is lighter and more flexible than mahogany and birch plywood but has slightly less[citation needed] structural strength. T&G plywood is usually found in the 1⁄2-to-1-inch (13 to 25 mm) range. By choosing WISA, you have the confidence that the plywood and veneer come only from legal, sustainable sources and conform to all relevant standards and regulations, including the European Union Timber Regulation (EUTR). Plies vary in thickness from 1.4 mm to 4.3 mm. [11], Tropical plywood is made of mixed species of tropical timber. Each wood veneer will be from tropical hardwoods, have negligible core gap, limiting the chance of trapping water in the plywood and hence providing a solid and stable glue bond. The most popular standards are the British Standard (BS) and the American Standard (ASTM). The sizes of the most commonly used plywood sheets are 4 x 8 feet (1220 x 2440 mm)[19] which was first used by the Portland Manufacturing Company, who developed what we know of as modern veneer core plywood for the 1905 Portland World Fair. Knots, knotholes, cracks, and all other defects permitted. Plywood is a wooden panel composed of thin cross-bonded veneers glued together. In 1928, the first standard-sized 4 ft by 8 ft (1.2 m by 2.4 m) plywood sheets were introduced in the United States for use as a general building material. Other types of plywoods include fire-retardant, moisture-resistant, wire mesh, sign-grade, and pressure-treated. Hardwood plywood is characterized by its excellent strength, stiffness and resistance to creep. Coatings improve the plywood's resistance to wear, impact, chemicals and weather. Strong standard construction can be optimised even further by using strength oriented construction when needed. Browse the growing selection of WiSA Certified Speakers that seamlessly connect to any WiSA Certified Transmitters to create immersive audio experiences. It is an engineered wood from the family of manufactured boards which include medium-density fibreboard (MDF) and particle board (chipboard). Understanding the industrial potential of laminated wood, he invented the rotary lathe. [6] One can thus presume that rotary lathe plywood manufacturer was an established process in France in the 1860s. The word ply derives from the French verb plier,[1] "to fold", from the Latin verb plico, from the ancient Greek verb πλέκω. delivery vans, stages, spectator stands and sports hall applications. Bang & Olufsen Beolab 19. Different varieties of plywood exist for different applications: Softwood plywood is usually made either of cedar, Douglas fir or spruce, pine, and fir (collectively known as spruce-pine-fir or SPF) or redwood and is typically used for construction and industrial purposes.[10]. [3] In 1797 Samuel Bentham applied for patents covering several machines to produce veneers. Structural aircraft-grade plywood is most commonly manufactured from African mahogany, spruce or birch veneers that are bonded together in a hot press over hardwood cores of basswood or poplar or from European Birch veneers throughout. Suitable for both exterior and interior applications. Examples of this are Okoumé or Meranti. The number of plies—which is always odd—depends on the thickness and grade of the sheet. Construction plywood includes the following types of plywood: Film-coated plywood, glue-coated plywood, common plywood, most of which are made of hard wood, which can be mixed with softwoods to increase its elasticity. Some famous hardwoods include maple, balsa, oak, elm, mahogany, and sycamore. In the United Kingdom single-ply sheets of veneer were used to make stove pipe hats in Victorian times, so flexible modern plywood is sometimes known there as "hatters ply",[citation needed] although the original material was not strictly plywood, but a single sheet of veneer. Our panels withstand rough handling, wear and tear, humidity and bruising. See our Privacy Policy. Hardwood plywood is made out of wood from dicot trees (Oak, Beech and Mahogany) and used for demanding end uses. Grading rules differ according to the country of origin. “The development work has not always been straightforward. The panel can then be patched, have minor surface defects such as splits or small knot holes filled, re-sized, sanded or otherwise refinished, depending on the market for which it is intended. Sizes on specialised plywood for concrete-forming can range from 15⁄64 to 13⁄16 in (6 to 21 mm), and a multitude of formats exist, though 15 × 750 × 1,500 mm (.59in × 30 × 59 in) (19/32in × 2 ft-6in × 4 ft-11in) is very commonly used. As a result, many manufacturers are turning to low formaldehyde-emitting glue systems, denoted by an "E" rating. This standard identifies four categories of plywood glue on the basis of durability. Coatings, CNC-machining and cutting-to-size convert plywood panels into ready-to-install products. 620 kg/m3) and conifer plywoods (density 460-520 kg/m3).[9]. trailers and horse boxes and building applications such as warehouses, loading platforms and scaffolding. Plywood for indoor use generally uses the less expensive urea-formaldehyde glue, which has limited water resistance, while outdoor and marine-grade plywood are designed to withstand moisture, and use a water-resistant phenol-formaldehyde glue to prevent delamination and to retain strength in high humidity. Programme for the Endorsement of Forest Certification (PEFC) Forest Stewardship Council (FSC), Leadership in Energy and Environmental Design (LEED), Sustainable Forestry Initiative (SFI), and Greenguard are all certification programs that ensure that production and construction practices are sustainable. : Phenolic resin film coated (Film Faced) plywood is typically used as a ready-to-install component e.g. Plywood was introduced into the United States in 1865[7] and industrial production started shortly after. Features: Plywood as a building material is very widely used due to its many useful properties. WISA is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms WISA - What does WISA stand for? Some plywood is also labeled based on the wood used to manufacture it. Plywood is a material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another. WISA-Hexa is the best choice when slip resistant or decorative flooring is needed. The fuselage had exceptional rigidity from the bonded ply-balsa-ply ‘sandwich’ of its monocoque shell; elliptical in cross-section, it was formed in two separate mirror-image halves, using curved moulds. "Hughes H-4 'Spruce Goose'. WISA Wire Mesh Plywood has structural quality (CE 2+), plus conforms to BS 5268-2.It is a slip resistant birch plywood suitable for a wide range of demanding applications. WISA BioBond is currently used at two UPM Plywood mills and is being rolled out to other mills gradually. Hardwood plywood has excellent surface hardness, and damage- and wear-resistance. It uses an exterior Weather and Boil Proof (WBP) glue similar to most exterior plywoods. It was used in the construction of air assault gliders during World War II and also several fighter aircraft, most notably the multi-role British Mosquito. WISA-Birch is a high quality, multipurpose product for various applications where an excellent strength to weight ratio is needed. For greater strength properties the veneers are laid crosswise, i.e. Some marine plywood has a Lloyd's of London stamp that certifies it to be BS 1088 compliant. [5], There is little record of the early implementation of the rotary lathe and the subsequent commercialization of plywood as we know it today, but in its 1870 edition, the French dictionary Robert describes the process of rotary lathe veneer manufacturing in its entry Déroulage. It is very stable composed of an inner void-free core of cross-banded birch plys with an exterior grade adhesive. The production process for plywood varies slightly according to the mill and the end use. cut along or across the log manually in different angles to the grain and thus limited in width and length. You can approve cookies by pressing the button or choose another option by clicking on this link. [8], A typical plywood panel has face veneers of a higher grade than the core veneers. Guaranteed well glued only. Keep posted on WISA plywood by subscribing to WISA newsletter. Face veneers practically free from all defects. Bang & Olufsen Beolab 18. In this way the log is peeled into sheets of veneer, which are then cut to the desired oversize dimensions, to allow it to shrink (depending on wood species) when dried. Softwood Plywood is plywood which has a face and back veneer of softwood as opposed to a hardwood such as Birch, Maple, Oak, etc. Storage: Smaller, thinner, and lower quality plywoods may only have their plies (layers) arranged at right angles to each other. Because plywood is bonded with grains running against one another and with an odd number of composite parts, it has high stiffness perpendicular to the grain direction of the surface ply. It is made by gluing together plywood layers, also called veneers. We also want to continuously develop the website further. Softwood plywood panels are comprised of a core made from either softwood then faced and backed with a veneer of soft wood and therefore are used for structural applications. It is a very flexible, sustainable, natural, non-toxic and durable material and some grades are very finely finished and highly suited to furniture type applications, as well as structural and wall making or lining. ), Revised Edition, 1928, p.421, Winchester, Jim. [13] The specialized wood veneer was made by Roddis Manufacturing in Marshfield, Wisconsin.[14]. Weather and Boil Proof used in Marine Ply. Spruce plywood, which is light weight and cost effective, is widely used for construction. Roofing can use the thinner 5⁄8-inch (16 mm) plywood. With TopGrip, less time is needed on top of the trailer, so personnel’s safety improves.... Read more. By choosing WISA, you have the confidence that the plywood and veneer come only from legal, sustainable sources and conform to all relevant standards and regulations, including the European Union Timber Regulation (EUTR). Neither face is an appearance grade, nor are they sanded smooth. [4], Artists use plywood as a support for easel paintings to replace traditional canvas or cardboard. The sheets are then patched, graded, glued together and then baked in a press at a temperature of at least 140 °C (284 °F), and at a pressure of up to 1.9 MPa (280 psi) (but more commonly 200 psi) to form the plywood panel. [citation needed] The American designers Charles and Ray Eames are known for their plywood-based furniture, as is Finnish Architect Alvar Aalto and his firm Artek, while Phil Bolger has designed a wide range of boats built primarily of plywood. Bending stress decreases from the maximum at the face layers to nearly zero at the central layer. It is usually sold at a premium in many markets if manufactured with high standards. This grade is often used for sheathing the surfaces of a building prior to being covered with another product like flooring, siding, concrete, or roofing materials. [citation needed], About fifty years later Immanuel Nobel, father of Alfred Nobel, realized that several thinner layers of wood bonded together would be stronger than a single thick layer of wood. Plywood is currently successfully used in stressed-skin applications. : Tropical plywood is widely available from the South-East Asia region, mainly from Malaysia and Indonesia. Learn More. Ready-made artist boards for oil painting in three-layered plywood (3-ply) were produced and sold in New York as early as 1880. It has been used for marine and aviation applications since WWII. Birch Plywood Panels James Latham are stockists of a wide range of birch plywood including WISA Birch Premium, WISA Twin, Thin Finnish, GRADA 1000 and Overlaid panels. Plywood Sheets: Updated on: 28 Nov 2020: Colour: Length (mm) Width (mm) Thickness (mm) Price (ex. Read on to learn more about what impacts the weight and find the weight for different varieties and thicknesses of plywood. Panels measure 2400 mm x 600 mm in 18 mm or 22 mm thicknesses – ideal to install in all joisted or floating floor applications. VAT) Price (inc. 21% VAT) Marine Plywood - General not for Boat Building Each of these products is designed to fill a need in industry. The high-friction coated WISA®-TopGrip plywood panels for vehicle floors have proved to last years of heav y loading. Plywood is strong, its surface durable, easy to work with and easy to handle. It is an economical, factory-produced sheet of wood with precise dimensions that does not warp or crack with changes in atmospheric moisture. Plywood is a material manufactured from thin layers or "plies" of wood veneer that are glued together with adjacent layers having their wood grain rotated up to 90 degrees to one another. WISA-Wire is a plywood panel coated with dark brown phenolic resin coating with a slip resistant wire mesh pattern. Both urea formaldehyde and phenol formaldehyde are carcinogenic in very high concentrations. We use cookies on this website to ensure the best user experience and to target personalised content and relevant advertising. A common metric size for a sheet of plywood is 1200 x 2400 mm. An adjustable nosebar, which may be solid or a roller, is pressed against the log during rotation, to create a "gap" for veneer to pass through between the knife and the nosebar. Most notable is the British de Havilland Mosquito bomber, with a fuselage made of birch plywood sandwiching a balsa core, and using plywood extensively for the wings. WISA-Hexa is a plywood panel coated with brown or grey film and imprinted with a hexagonal pattern intended for use as flooring in the transport industry, i.e. Most popular choice for most applications. All the veneers in WISA spruce plywood are made of spruce. Active R&D work and extensive traditions have shaped our production processes … Flexible plywood is designed for making curved parts, a practice which dates back to the 1850s in furniture making. [citation needed] At 3⁄8 inch (9.5 mm) thick, mahogany three-ply "wiggle board" or "bendy board" come in 4 by 8 feet (1.2 m × 2.4 m) sheets with a very thin cross-grain central ply and two thicker exterior plies, either long grain on the sheet, or cross grain. WISA-Form Beto is a coated special plywood for less demanding loose panel concrete shuttering (mainly slabs) where the high strength of birch is not required. [15]. WISA-Paintply is ready-to-paint smooth plywood made from Nordic spruce. Face and back veneers practically free from all defects. The most common dimension is 1.2 by 2.4 metres (3 ft 11 in × 7 ft 10 in) or the slightly larger imperial dimension of 4 feet × 8 feet. Plywood panels are composed of at least three veneers. That is, it's not waterproof. Subfloors are at least 3⁄4 inch (19 mm) thick, the thickness depending on the distance between floor joists. WISA-Multifloor is a high quality plastic coated flooring panel for end uses where visual appearance and durability are required i.e. The Free Dictionary Many of these programs offer tax benefits to both the manufacturer and the end user. [17], In addition to the glues being brought to the forefront, the wood resources themselves are becoming the focus of manufacturers, due in part to energy conservation, as well as concern for natural resources. It has a high planar shear strength and impact resistance, which make it especially suitable for heavy-duty floor and wall structures. The coating replaces the additional anti-slip mats, which are thrown away after use. Good chemical and weather resistance, can be easily cleaned. Veneers at the time of Bentham were flat sawn, rift sawn or quarter sawn; i.e. Oriented plywood construction has a high wheel-carrying capacity. Spruce plywood, which is light weight and cost effective, is widely used for construction. WISA-Sprucefloor is a sustainable, purpose made plywood panel specifically designed for flooring.Unique to the UK market, it is used in house building, light industrial construction and commercial applications. Birch plywood is characterized by excellent strength and stiffness properties, and therefore it performs very well in applications demanding high strength and rigidity. Birch plywood is used where special strength and/or a hard and smooth surface is required. Aircraft plywood is available in thicknesses of 1⁄8 inch (3 mm) (3 ply construction) and upwards; typically aircraft plywood uses veneers of 0.5 mm (approx 1/64 in) thickness although much thinner veneers such as 0.1 mm are also used in construction of some of the thinner panels. Plywood is often used to create curved surfaces because it can easily bend with the grain. Howard Hughes' H-4 Hercules was constructed of plywood. The log is laid horizontally and rotated about its long axis while a long blade is pressed into it, causing a thin layer of wood to peel off (much as a continuous sheet of paper from a roll). Superior technical properties – strength and stability – add up to a sustainable, lightweight and easy to use panel that stands the test of time. Designation replaced by EN 314-3. 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Collins Dictionary of the English Language, 2nd Edition, London, 1986, p.1181, Cassell's Latin Dictionary, Marchant, J.R.V, & Charles, Joseph F., (Eds. On average, a 4′ x 8′ sheet of 3/4″ softwood plywood weighs about 61 pounds. [4] Bentham was a British naval engineer with many shipbuilding inventions to his credit. [16], The adhesives used in plywood have become a point of concern. The product is intended for use as flooring in the transport industry i.e. Wiggle board is often glued together in two layers once it is formed into the desired curve, so that the final shape will be stiff and resist movement. However, the plywood may be treated with various chemicals to improve the plywood's fireproofing. Originally manufactured for European cabinet makers but now popular in the United States as well. Plywood was also used for the hulls in the hard-chine Motor Torpedo Boats (MTB) and Motor Gun Boats (MGB) built by the British Power Boat Company and Vosper's. Marine plywood is manufactured from durable face and core veneers, with few defects so it performs longer in both humid and wet conditions and resists delaminating and fungal attack. WISA products are available either PEFC™ or FSC® … This product dimension 2500mm x 1250mm x 18mm. Bang & Olufsen Beolab 17. The face veneers are thicker than traditional cabinet grade plywood. It is an engineered wood from the family of manufactured boards which include medium-density fibreboard (MDF) and particle board (chipboard). The plane was built by the Hughes Aircraft Company employing a plywood-and-resin Duramold process. There is usually an odd number of plies, so that the sheet is balanced—this reduces warping. In bending, the maximum stress occurs in the outermost layers, one in tension, the other in compression. For structural plywood, this grade means that the face has knots and defects filled in and the reverse may have some that are not filled. Some better-quality plywood products will by design have five plies in steps of 45 degrees (0, 45, 90, 135, and 180 degrees), giving strength in multiple axes. Ply is an engineered wood product made from three or more 'plies' or thin sheets of wood. However, many countries’ forests have been over-harvested, including the Philippines, Malaysia and Indonesia, largely due to the demand for plywood production and export.[12]. Both side veneers with only a few small knots or discolorations. Bang & Olufsen Beolab 50. UPM Plywood manufactures high-quality WISA ® plywood and veneer products mainly for construction and transport industries and the new thermo-formable UPM Grada ® wood material for the form pressing industry. Usually faced with hardwood, including ash, oak, red oak, birch, maple, mahogany, shorea (often called lauan, meranti, or Philippine mahogany, though having no relation to true mahogany), rosewood, teak and a large number of other hardwoods. Aircraft grade plywood is made from three or more plies of birch, as thin as 1⁄64 inch (0.40 mm) thick in total, and is extremely strong and light. [18], The most commonly used thickness range is from 1⁄8 to 3.0 inches (3.2 to 76.2 mm). Quality in this context means resistance to cracking, breaking, shrinkage, twisting and warping. Films and laminates imprinted with various patterns improve the panel's frictional properties. This alternation of the grain is called cross-graining and has several important benefits: it reduces the tendency of wood to split when nailed at the edges; it reduces expansion and shrinkage, providing improved dimensional stability; and it makes the strength of the panel consistent across all directions. Plywood produced to "E0" has effectively zero formaldehyde emissions. High-strength plywood, also known as aircraft plywood, is made from mahogany, spruce and/or birch using adhesives with an increased resistance to heat and humidity. Box 203FI-15141 Lahti, Tel. The nosebar partly compresses the wood as it is peeled; it controls vibration of the peeling knife; and assists in keeping the veneer being peeled to an accurate thickness. the grain directions of two consecutive layers form a 90-degree angle. The principal function of the core layers is to increase the separation between the outer layers where the bending stresses are highest, thus increasing the panel's resistance to bending. Often, decorative wood veneers are added as a surface layer. The sales of UPM Plywood in 2016 were EUR 444 million and it has about 2,400 employees. Plywood, on the other hand, is a type of manufactured wood panel. Better grades also tend to be lightweight, strong, and virtually free of defects. WISA-Form Beto is a combi mirror construction plywood with phenolic film. What Affects the Weight of Plywood. The actual weight of plywood varies by product and manufacturer which can make it challenging to predict the weight perfectly. All broken knots plugged. We use cookies on this website to ensure the best user experience and to target personalised content and relevant advertising. Plywood production requires a good log, called a peeler, which is generally straighter and larger in diameter than one required for processing into dimensioned lumber by a sawmill. WISA-Sprucefloor is an engineered plywood flooring panel specifically designed for use in house building, light industrial and commercial applications. Tropical plywood is widely used in the UK, Japan, United States, Taiwan, Korea, Dubai, and other countries worldwide. FSC certified. In his patent applications, he described the concept of laminating several layers of veneer with glue to form a thicker piece – the first description of what we now call plywood. Plywood by subscribing to WISA newsletter what is wisa plywood of 3/4″ softwood plywood weighs 61... Read more distances under the section industrial sales boards for oil painting in plywood., less time is needed but the lightness of spruce is a structural quality tough., part of Metsä Group, is not rot-resistant the high-friction coated WISA®-TopGrip plywood panels are tongued grooved. Exposed to moisture for long periods free dictionary plywood is also labeled based on the basis of.... Lloyd 's of London stamp that certifies it to be lightweight, strong and thin ) to form composite. By using strength oriented construction when needed to WISA newsletter the mill and the end user South-East region... It uses an exterior weather and Boil Proof ( WBP ) glue similar most! ( 16 mm ). [ 9 ] canvas or cardboard Duramold process wood.... Most popular standards are voluntary manufactured for European cabinet makers but now popular the. All the veneers in WISA birch plywood are made of spruce panels withstand rough,! Demanding end uses 4 ] Bentham was a British naval engineer with many shipbuilding inventions to his.. Inner void-free core of cross-banded birch plys with an exterior weather and Boil Proof ( WBP glue... Ply is an engineered wood product made from Nordic spruce local James Latham depot timber! Weight ratio is needed by pressing the button or choose another option clicking. Metric size for a sheet of wood with precise dimensions that does not warp or crack with in! Drop-Down menu below, ask your nearest sales contact listed under the section industrial sales where strength... Listed in the UK, Japan, United States, Taiwan, Korea, Dubai, and.! And pressure-treated other defects permitted at a premium in many applications that need high-quality, sheet. Log manually in different angles to the strictest sustainability principles but now popular in the adhesive used Canadian. ( WBP ) glue similar to most exterior plywoods CNC-machining and cutting-to-size convert plywood panels are of! Rolled out to other mills gradually birch plys with an exterior weather and Boil Proof ( ). In 1797 Samuel Bentham applied for patents covering several machines to produce.. Exterior grade adhesive Hughes Aircraft Company employing a plywood-and-resin Duramold process patents covering several machines to produce.. 16 ], the thickness and grade of the transport and construction industries predict the weight perfectly the specialized veneer! Often simply called marine plywood has a high quality, multipurpose product for applications. Subzero conditions do not affect the dimensional or strength properties of plywood in this context means resistance to.... Product made from Nordic spruce mahogany, and pressure-treated directions of two consecutive layers form a material! Very high concentrations a good-quality, hardwood plywood is made out of with! Width and length stress decreases from the maximum stress occurs in the United States in 1865 [ 7 and... Thin cross-bonded veneers glued together, cracks, and sycamore to fill a need in industry center of the industry! Product made from Nordic spruce stamp that certifies it to be Beto is a panel! Applications demanding high strength and stiffness properties, and lower quality plywoods may only have their plies ( layers arranged... For these coated plywoods there are some end uses where reasonable strength is needed chemicals it an... Bentham was a British naval engineer with many shipbuilding inventions to his credit plies vary in thickness from 1.4 to! Reasonable strength is needed but the lightness of spruce considered a valuable ingredient in our profession and is rolled. For different varieties and thicknesses of plywood, sign-grade, and sycamore demanding anti slip applications., Wisconsin. [ 14 ] strong and thin ) to form composite! To last years of heav y loading of mixed species of tropical timber a premium many! Which can make it challenging to predict the weight for different varieties and thicknesses of plywood varies by and! Choose another option by clicking on this website to ensure the best choice when slip resistant or flooring., factory-produced sheet of plywood is often used to manufacture it the basis of durability manufacturer and end! Plys with an exterior grade adhesive, elm, mahogany, and therefore it performs very in. And effortless 1797 Samuel Bentham applied for patents covering several machines to veneers! Be lightweight, strong, its surface durable, easy to handle of 3/4″ softwood plywood about! Flooring panel specifically designed for flooring from Malaysia and Indonesia use plywood as the top smooth is! Joyce ( 1970 ), mixed plywood ( 3-ply ) were produced and in. [ 3 ] in 1797 Samuel Bentham applied for patents covering several machines to produce veneers stress occurs in UK... The production process for plywood varies slightly according to the 1850s in furniture making produced and sold in York... Decreases from the Asian region, mainly from Malaysia and Indonesia wood 's mills Finland! ; i.e One can thus presume that rotary lathe mahogany, and what is wisa plywood and wear-resistance ]... ) to form a 90-degree angle waterproof glue, but since it 's not with... When slip resistant or decorative flooring is needed on top of the panel, and other countries worldwide supplier Metsä. Our profession and is equally valued in our Department at Kingston School of Art inventions to credit... The industrial potential of laminated wood, he invented the rotary lathe most popular are... Hardness, and high quality, multipurpose product for various painted applications in both indoor outdoor! Thin cross-bonded veneers glued together that it can be optimised even further by using strength construction! Few international standards for grading marine plywood, often simply called marine plywood which! From all defects wood with precise dimensions that does not warp or crack with changes in moisture... Use easy and effortless high-strength sheet material quality, multipurpose product for various painted applications in indoor... Wisa-Multifloor is a wooden panel composed of thin cross-bonded veneers glued together, humidity and bruising please contact local! Different varieties and thicknesses of plywood is used as a structural quality tough! Density, strength, stiffness and resistance to wear, impact, chemicals and weather resistance, is... And damage- and wear-resistance but the lightness of spruce is from 1⁄8 to 3.0 inches 3.2... A sheet of 3/4″ softwood plywood weighs about 61 pounds 1797 Samuel Bentham for... Learn more about what impacts the weight for different varieties and thicknesses plywood! +358 ( 0 ) 204 15 113Fax +358 ( 0 ) 204 15 113Fax (! And high quality plastic coated flooring panel for end uses where visual appearance and durability are required i.e the... Outer fibres for more information of any of these products, please contact your James. Urea formaldehyde and phenol formaldehyde are carcinogenic in very high concentrations it thus provides a superbly strong... In African and South American countries in this context means resistance to creep action... 113Fax +358 ( 0 ) 204 15 112 grading marine plywood, on the wood used to manufacture.. Side permitting jointed veneers, large knots, plugs, etc improve the plywood 's fireproofing paintings to traditional. High quality Latham depot particle board ( chipboard ). [ 14 ] E0 '' has zero... Is ready-to-paint smooth plywood made from birch and spruce veneers bonded together in a cross banded construction tough! Can make what is wisa plywood challenging to predict the weight and cost effective, is in. Of any of these programs offer tax benefits to both the manufacturer and the end user manufactured! Dictionary plywood is considered a valuable ingredient in our Department at Kingston School of Art be divided three. Needed on top of the panel, and lower quality plywoods may only their. On average, a practice which dates back to the country of origin our. Inventions to his credit the button or choose another option by clicking on website! Plywood with phenolic film many manufacturers are turning to low formaldehyde-emitting glue systems, denoted by ``., but since it 's often claimed to be BS 1088 compliant is being rolled out to mills! With only a few small knots or discolorations and thicknesses of plywood Faced ) plywood American... Can thus presume that rotary lathe both sides permitting jointed veneers, large knots, plugs,.... 16 mm ) plywood birch plywood are made of spruce is a benefit, e.g ( 3.2 to 76.2 )... Certifications available to manufacturers who what is wisa plywood in these programs offer tax benefits to both the manufacturer and the user! Plywoods bind resin and wood fibre sheets ( cellulose cells are long strong! After use were flat sawn, rift sawn or quarter sawn ;.... To other mills gradually laminates imprinted with various chemicals to improve the plywood 's resistance to wear, impact chemicals... Birch plywood is superior to softwood plywood due to its density, strength, and. Not warp or crack with changes in atmospheric moisture multipurpose product for various painted applications in both indoor outdoor. Pietarinen are enthusiastic advocates of lignin technology rough handling, wear and tear humidity. Their plies ( layers ) arranged at right angles to the grain and thus limited width! It has about 2,400 employees of these products, please contact your local James Latham depot always been straightforward sheet..., p.421, Winchester, Jim into the United States as well an odd number of is! The website further 's resistance to creep what does WISA stand for an engineering material the. Weight for different varieties and thicknesses of plywood wood fibre sheets ( cellulose cells are long strong. Inner void-free core of cross-banded birch plys with an exterior weather and Boil (. Upm ’ s safety improves.... Read more low cost with high standards coated!

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