Okoume plywood properties pdf

Some properties, such as tension parallel to the grain, and all properties for some imported species are based on a more limited. Okouplex is a benchmark product, entirely made of okoume, nf exterieur ctbx quality for structural use, used mainly in buildings floors, partitions, waterproofing support, etc. Pdf some mechanical properties of plywood produced from. Okoume offers unusual flexibility in finishing because the color, which is of medium intensity, permits toning to either lighter or darker shades. Aucoumea klaineana angouma gaboon or okoum is group a tree in the family indium the bod known equally okoume marine grade plywood it is considered perchance the. Joubert okoume is certified by lloyds of london to be manufactured to the british standard 1088.

Physical properties and moisture relations of wood william simpson and anton tenwolde contents appearance 31 grain and texture 31 plainsawn and quartersawn 32 decorative features 32 moisture content 35 green wood and fiber saturation point 35 equilibrium moisture content 35 sorption hysteresis 37 shrinkage 37. Quality of veneers veneers may be rotary cut or sliced. Okoume plywood is sometimes known in the uk as gaboon plywood and is incorporated into a wide range of enduses. The panels in the joubert marine range are of high quality and are recommended for the construction and interior fittings in the boat building industry, thanks to their lightweight and excellent resistance to damp conditions. I love working with wood, and plan to make my boats from plywood and lumber. It is stronger, has more plys, is smoother and takes epoxy well. Woodchip stocks the highest quality okoume marinegrade plywood available on the market today. Bruynzeel okoume plywood our bruynzeel okoume gaboon aucoumea klaineana plywood is rated as bs 1088 and is the best product to be used for boat building and extreme environments. It is the lightest of marinegrade plywood products, between 812% lighter than meranti.

A wide variety of okoume plywood for sale options are available to you, such as outdoor. Okoume gaboon is an african species that is very similar to mahogany that has a very consistent appearance with a tight grain and is very light. Superior exterior plywood made only with douglasfir or. Okoume plywood is a popular wood for counter tops, laminations, kitchens, and other interior work, as well as for marine applications such as kayaks and canoes. Okoume has a high strength to weight ratio which is why it is the plywood of choice for racing boats and applications where weight is important. Okoume marine grade plywood is considered perhaps the finest construction plywood available for boats, and is certified to british standard 1088. Where its lighter weight, good bending properties and ease of finishing are a value, the 532 thickness is used in one design kit aircraft and is applicable to a wide variety of homebuilt aircraft. Imports to the united states are mainly in the form of veneer and plywood, especially for use in decorative paneling, hollowcore doors and furniture. Engineering properties of plywoods the following engineering data are those specified in australian standards, particularly as 1684, 1720 and 2269 for structural plywood having stress gradings of f8, f11and f14. Marine plywood is manufactured from durable face and core veneers, with. Plywood design specification trio forest products, inc.

As the decorative veneer on the surface of the product is made of highquality wood by slicing or peeling, it has better decorative properties than plywood. Okoume panels are extensively used by race class boat builders, rowing shell builders and many other applications. Marine exterior grade available in select locations. Okoume 610 shts 5% disc 1120 shts 10% disc 21 or more15%disc full units contact us can be combined with other plywood species and thicknesses to get discount. In addition to strength, modulus of elasticity and shear modulus the density and. About 4% of these are plywoods, 0% are fibreboards, and 0% are other boards. China okoume plywood manufacturers and suppliers lusen. Light pinkish brown in color, sometimes lustrous with variable interlocking grain, the rotary cut panel can be pain.

The condensed tannins of okoume aucoumea klaineana pierre. Our marine okoume plywood has a lloyds of london stamp that certifies it to be bs 1088. Okoume, aucoumea klaineana aka angooma, gaboon or combogala is an african medium sized hardwood tree. Many of the mechanical properties of wood tabulated in this chapter were derived from extensive sampling and analysis procedures. Hours of operation monday friday 8 am 5 pm customer. Okoume marine plywood sources in europe woodenboat. Wood handbookchapter 3physical properties and moisture. It is certified to the bs 1088 marine plywood standard. Okoumes clear, beautifullyfigured grain has a golden, honeycolored hue beneath epoxy and varnish, while its low density yields ultralightweight hulls. Applications include displays, containers, furniture, shelving, home projects and general use. Most often used in combination with epoxy and fiberglass creating a structure that can be stronger and lighter than plastic or fiberglass, rivaling the performance of. Pleasure boats, furniture, superstructures, overhead doors, doors and windows, construction.

For the marine industry bruynzeel multipanel has proven its quality. Combiplex is a panel for general use with the aesthetic characteristics of. Okoume plywood is available is sheet sizes of 2440 x 1220 and comes in thicknesses of 7mm, 9mm, 12mm, 15mm and 18mm. The same company that produces the plywood for the apexrobin aircraft company in france manufactures this plywood.

Its users range from individual hobbyist kayak builders to some of the worlds largest boat builders. Easy to work with for tooling, these are also light and strong and ideal for weight savings for light weight craft. It can also be used for building furniture or on kitchen cabinets because of its lustrous appearance. It is an engineered wood from the family of manufactured boards which include mediumdensity.

Following extensive consultation with our suppliers, it is our opinion that genuine marine plywood which fully meets and is tested to bs 1088 specification for marine plywood is too expensive for the construction applications that the product is commonly specified for. The high constructive properties combined with the nicest decorative veneers make this plywood suitable for every part of. Aucoumea klaineana, or okoume, is an african hardwood that can only be found in the congo, gabon, and. Easy to work with for tooling, these are also light and strong and ideal for weight savings for light weight. The plywood core will vary depending on the quality of the panel but will usually be douglas fir, meranti, or okoume. If so specified by the purchaser, gaboon or okoume aucoumea klaineana, which is classed as nondurable, may be used provided that the name of the timber is included in the mark on the boards produced. Does anyone have experience in working with the better quality plywoods such as oloume and also with marine fir plywood. Okoume plywood marine grade plywood edensaw woods wa. Eurolight gaboon plywood properties plywood gravy holder building is inexpensive designs are simpler materials are easy to find anywhere and t.

Wholesale marine plywood wholesale plywood plywood. This wood species is not listed in the cites appendices, but is on the iucn red list. Okoume mahogany marine plywood okoume aucoumea klaineana also known as gaboon or combogala, is only found in gabon, the congo and equatorial guinea in africa. Okoume and meranti plywood vs fir plywood the woodenboat forum is sponsored by woodenboat publications, publisher of woodenboat magazine. Okoume throughout face veneers iiii for shipbuilding and fitting out boats. Used by hobbyists and some of the worlds largest boat builders. Okoume plywood is commonly used for building racing boats and other uses where lightweight wood is needed. Our bs 1088 plywoods carry a 10 year guarantee against delaminating, and allow you to build with a plywood that is manufactured in accordance with this standard, which is widely specified in the marine industry. It is widely available manufactured and certified to british standard 1088. Each board from our south florida lumberyard exceeds the bs1088 and bs 6566 standard. Apa 1981 and represent a consensus opinion of the makers, sellers, and users of plywood products as well as other concerned parties. The top countries of suppliers are thailand, china, and vietnam, from which the percentage of okoume plywood for sale supply is 1%, 96%, and 3% respectively. Guidelinewood ijoist asd manual for engineering wood. Meranti might permit thinner sheets to be employed, is more durable and better modulus, but plywood sizes are fixed and you might not get the reductions you need with available sizes.

The wood we supply is from forestry stewardship council fsc approved sources and produced in lloyds approved mills. Wood handbookchapter 4mechanical properties of wood. Within its native range, okoume is considered widespread and relatively common. Bs1088 grading requires the same species throughout face, back, and core, defectfree a grade face veneer with no repairs. Outside of its native range, most okoume is sold as veneer or plywood. Shop superply 1532in okoume plywood, application as 4 x 8 at. Glue water boil proof, melamine reinforced formaldehyde free. Okoume and meranti plywood vs fir plywood woodenboat. Pdf in this study, we determined the flexural properties and tensile shear.

About % of these are plywoods, 0% are formwork, and 0% are fibreboards. Gibson mcilvain strives to provide a higher quality. Aljoma maintains an inventory of this chinese plywood at major u. Okoume throughout face veneers iiiii the okoume throughout panel is the benchmark leading reference for outdoor use. Most commonly sold as veneer, okoume should be moderately priced for an imported hardwood, though highly figured pieces tend to be more expensive. Okoume aucoumea klaineana also known as gaboon or combogala, is only found in gabon, the congo and equatorial guinea in africa. Okoume plywood okoume okueme, also known as gaboon, is an african hardwood widely used in europe over the past century. 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. It is listed as vulnerable due to a population reduction of over 20% in the past three generations, caused by a decline in its natural range, and exploitation. Solid lumber is used in furniture and joinery where it grows locally.

I can get lumber in lithuania, but plywood is whole other matter. The okoume marine plywood can be used for hull and deck components, structural bulkheads and latches. Okoume plywood bs 1088 joubert marine grade marine. 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. In order to promote convenient strategies for the valorization of aucoumea klaineana pierre okoume plywood and sawmill wastes industry in the fields of adhesives and composites, the total. This lightweight panel is used almost exclusively for marine applications. Okoume is the wood of the okoume tree aucoumea klaineana, a species native to westcentral africa, in particular gabon, equatorial guinea and the republic of congo. These standards have evolved over time from earlier documents ohalloran 1979, 1980. We offer several types of marine grade plywood, from medium grade, general use douglas fir to top of the line 100% okoume and sapele plywood. A wide variety of okoume plywood for sale options are available to you, such as usage.

Physical and mechanical properties are based on mature heartwood specimens. Mechanical and acoustic properties specific gravity. Physical properties 1,5 mechanical and acoustic properties specific gravity. Aucoumea klaineana angouma, gaboon, or okoume is a tree in the family burseraceae, native to equatorial west africa in gabon, the republic of the congo, and rio muni.

High quality okoume gaboon marine plywood sheets available in various thicknesses. Okoume s clear, beautifullyfigured grain has a golden, honeycolored hue beneath epoxy and varnish, while its low density yields ultralightweight hulls. I am pretty convinced that the quality of the okoume and meranti types is better than fir and that they dont have the checking problems that fir does. These properties are represented as the average mechanical properties of the species. Marine plywood has been specified, mostly in construction applications, in the belief that it continue reading okoume. The top countries of suppliers are thailand, china, and vietnam, from which the percentage of okoume plywood supply is 1%, 93%, and 6% respectively.

Physical and mechanical properties are based on mature heartwood. It is a large hardwood tree growing to 3040 m tall, rarely larger, with a trunk 1. A wide variety of okoume plywood options are available to you, such as outdoor. Selected okoume throughout plywood meeting the british standard, bs 1088. These stress gradings are strictly only applied to plywood manufactured to that standard, such as hoop pine f14 plywood. Okoume, aucoumea klaineana, is a fastgrowing, plantationgrown tropical hardwood. Okoume pnael is a marine grade plywood made entirely with debarked okoume with an even structure. Superply 1532in okoume plywood, application as 4 x 8. Okoume plywood has a hardwood veneer that is suitable for many appearance grade applications. Hello, im an amateur boatbuilder from lithuania eastern europe, just started off last summer with my first selfdesigned and built boat, i am looking forward to future projects, likely ordering plans of proven designs. There are 5,654 suppliers who sells okoume plywood for sale on, mainly located in asia. Bs 1088 british standard specification for marine plywood manufactured from selected untreated tropical hardwoods specification this british standard applies to plywood made with untreated tropical hardwood veneers having a suitable prescribe level of resistance to fungal attack with a bond of wbp glue quality between the plies. Marine ply okoume marine plywood sheets joubert plywood.

A comprehensive range of okoume veneer face plywood is stocked by buildpro. Okoume plywood is great for cabinet, shelving, dollhouses, bookcases, wine racks and entertainment centers. It can be used for various different exterior applications, for example. The forum is a free service, and much like the free content on public radio, we hope you will support woodenboat by subscribing to this fabulous magazine. Mar 25, 2016 in your situation and not knowing the sor, the usual choice is okoume for its weight, sized appropriately for its service expectations. It conforms to the specifications nfl 18 april 1995 french aircraft plywood norm and bs 10882003 marine plywood norm. These properties can vary greatly depending on origin and growth.

Primary uses in the united states, okoume is generally used for decorative plywood paneling, general utility plywood, and doors. The lumber of this tree is known by many names, among them acoume, gaboon wood, uume and zouga. Ilomba joubert poplyfeu joubert panofeu joubert poplydoor joubert aludoor okoume throughout. As the decorative veneer on the surface of the product is made of highquality wood by slicing or peeling, it. Sapwood must always be considered as nondurable against wood. There are 3,095 suppliers who sells okoume plywood on, mainly located in asia. Chesapeake light crafts okoume marine grade plywood is manufactured in europes finest mills to specs. Product is available in marine ply and super marine ply in okoume veneer. We supply yacht, house boat and pleasure craft manufacturers and restorers locally and from around the country with high quality boat lumber and marine grade plywoods. Joubert okoume is the highest quality marine plywood available today. It is a durable and handsome hardwood with a uniform red color. The type of customers who typically purchase the bs1088 okoume can vary from the hobbyist boatkayak. Bruynzeel okoume plywood merritt supply wholesale marine.

Okoume requires full sealing or encapsulation in use. However, are okoume and meranti stiffer than fir, in other words will it be more difficult to fit to the frames. New wholesale pricing on marine plywood, douglas fir, cca treated fir, joubert okoume and hydrotek meranti. Okoume the wood database lumber identification hardwood. Superply 1532in okoume plywood, application as 4 x 8 at. Okoume marine plywood the okoume marine grade plywood is lightest in weight among all the marine plywood products available at edensaw. It is regularly used in the manufacture of yachts and other vehicles where a lightweight plywood product is required that takes surface finishes well. In the form known as okoume marine grade plywood, it is considered perhaps the finest construction plywood now available for boats. Wood properties of okoume okoume alternative name 1 gaboon okoume amount of figure.

1171 1139 1314 832 957 992 759 507 518 359 365 139 1564 1190 117 1505 731 1382 389 1116 690 262 800 12 776 1374 1014 5 780 883 1004 208 1329 1472 175 1083 797