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Iroko (Milicia excelsa) Common Name(s): Iroko Scientific Name: Milicia excelsa, M. regia (syn. Chlorophora excelsa, C. regia) Distribution: Tropical Africa Tree Size: 100-130 ft (30-40 m) tall, 3-5 ft (1-1.5 m) trunk diameter Average Dried Weight: 41 lbs/ft3 (660 kg/m3) Specific Gravity (Basic, 12% MC): .55, .66 Janka Hardness: 1,260 lbf (5,610 N) Modulus of Rupture: 12,700 lbf/in2 (87.6 MPa) Elastic Modulus: 1,360,000 lbf/in2 (9.38 GPa)...

The Periodic Table of Wood

Woods featured on the poster: [expand title="NORTH AMERICA (27 species)"] Alder, Red Ash, White Baldcypress Basswood Birch, Yellow Box Elder Butternut Cedar, Eastern Red Cedar, Western Red Cherry, Black Chestnut, American Elm, Red Fir, Douglas Hickory, Shagbark Locust, Black Maple, Hard Oak, Red Oak, White Osage Orange Pine, Southern Yellow Poplar, Yellow Redwood Sassafras Spruce, Sitka Sycamore Walnut, Black Walnut, Claro [/expand] [expand title="CENTRAL AMERICA (20 species)"] Balsa Bocote Cedar, Spanish Chakte Viga Chechen Cocobolo Goncalo Alves Jatoba Katalox Kingwood Leopardwood Lignum Vitae Mahogany, Honduran Mahogany, Santos Monkeypod Primavera Purpleheart Redheart Rosewood, Honduran Ziricote [/expand] [expand title="SOUTH AMERICA (18 species)"] Bloodwood Canarywood Cebil Cumaru Greenheart Imbuia Ipe Lacewood Macacauba Marblewood Mesquite, Black Pau Ferro Rosewood, Brazilian Snakewood Tulipwood Verawood Walnut, Peruvian Yellowheart [/expand] [expand title="EUROPE (13 species)"] Ash, European Beech, European Birch, Masur Boxwood Cedar of Lebanon Elm, Wych Oak, English Olive Plane, London Spruce, Norway Sycamore Maple Walnut, English Yew, English [/expand] [expand title="AFRICA (20 species)"] Afrormosia Afzelia Anigre Blackwood, African Bubinga Ebony, Gaboon Iroko Limba Mahogany, African Makore Mansonia Movingui Muninga Ovangkol Padauk Pink Ivory Sapele Walnut, [...]

About the Project

How "The Wood Database" got started... It all began back in April of 2007; I had recently checked out some wood identification books at the library, and I wanted a way to organize all of the most helpful data into a single reference file on my computer. After cataloging the wood’s common and scientific names, weight, approximate cost, and any other notes or observations that I thought were unusual to that species of wood, I printed the file out and used it as a reference guide in my shop. (At that time, I was involved in making psalteries—a type of stringed musical instrument.) Over time, I found myself referencing this chart so many times, and I had made so many additions and alterations to it—adding my own observations, density readings, etc.—that it became nearly indispensable. Many times when a project would come up, I would consult the chart as a guide to help me use the most appropriate wood possible. How my wood list grew into an online projectEventually, I realized that all of the data that I found in most wood identification books available to the public [...]

Restricted and Endangered Wood Species

by Eric MeierThe issue and ethics surrounding the utilization of trees for lumber is oftentimes both expansive and ambiguous. Not only are there questions of sustainability (i.e., given the current rate of harvesting, can a particular species continue to reproduce at a sustainable rate so that demand will not outstrip supply?), but there's also the matter of habitat destruction (i.e., even if a tree species can be sustainably harvested from the wild, would doing so destroy or endanger other species in the same habitat?).Further mixed into this murky cocktail is the fact that for some countries—especially poorer third-world countries—lumber is big business, and placing a restriction on such a lucrative sector of their commerce would be seen as counter-productive, and consequently actual or potential levels of exploitation may not be easily or readily discovered.However, despite the complexity of the issue, and the incomplete or even possibly faulty data, some information is better than no information. With these shortcomings in mind, there are two international entities that will be used and cited on this website, CITES and the IUCN.CITESAn international agreement between governments was formed in 1973, called the Convention on International Trade of Endangered Species, or CITES for short. CITES has three different levels of protection [...]

Wood Allergies and Toxicity

by Eric Meier "Not to omit any one of them, the yew is similar to these other trees in general appearance . . . It is an ascertained fact that travellers' vessels, made in Gaul of this wood, for the purpose of holding wine, have caused the death of those who used them." –Pliny the Elder, from Naturalis Historia, ca. 77 AD Looking at the above quotation, (taken from a writing nearly two thousand years old), ought to bring—at the very least—a small bit of respect and attention to the matter of safety as it pertains to wood toxicity. If this subject has been known and reported as "ascertained fact" since ancient history, how much more ought we to take heed in modern times, considering that we have so many more well-developed means of communication and testing? Wood Toxicity and Allergen Chart Below you'll find a chart of various wood species, along with their reported effects and properties. The information on this chart has been compiled from many sources, with references given at the bottom. When viewing the chart, please keep the follow in mind: Just because any given wood is not listed on the chart, does not mean that [...]


...Afrormosia (Pericopsis elata) Common Name(s): Afrormosia, Afromosia, African Teak...

Worldwide Woods, a new poster Temporarily unavailable! Please use the email signup list below to be notified as soon as the poster becomes available for sale. Over 500 worldwide woods pictured 24" wide (61 cm) x 36" tall (91 cm) Divided into 8 geographical regions $30 (shipped by Alder, Red (Alnus rubra) Ash, Black (Fraxinus nigra) Ash, Green (Fraxinus pennsylvanica) Ash, White (Fraxinus americana) Aspen, Bigtooth (Populus grandidentata) Aspen, Quaking (Populus tremuloides) Baldcypress (Taxodium distichum) Basswood (Tilia americana) Beech, American (Fagus grandifolia) Birch, Paper (Betula papyrifera) Birch, Yellow (Betula alleghaniensis) Box Elder (Acer negundo) Buckeye, Yellow (Aesculus flava) Buckthorn, Cascara (Rhamnus purshiana) Butternut (Juglans cinerea) Catalpa (Catalpa speciosa) Cedar, Atlantic White (Chamaecyparis thyoides) Cedar, Eastern Red (Juniperus virginiana) Cedar, Incense (Calocedrus decurrens) Cedar, Northern White (Thuja occidentalis) Cedar, Port Orford (Chamaecyparis lawsoniana) Cedar, Western Red (Thuja plicata) Cedar, Yellow (Cupressus nootkatensis) Cherry, Black (Prunus serotina) Chestnut, American (Castanea dentata) Chinkapin (Chrysolepis chrysophylla) Coffeetree (Gymnocladus dioicus) [...]

WOOD! book: Identifying and Using Hundreds of Woods Worldwide

NOW AVAILABLE ON AMAZON  272 Pages8.5" x 11" page size (22 cm x 28 cm).Full color throughout; Hundreds of images. HardcoverWith a sewn binding and jacket-less design to stand up to the rigors of nearly any wood shop. $35 PriceRobust, trusted ordering through Amazon. Free domestic shipping; reasonable int’l rates.* Over 350 woods coveredOver 100 full-page wood profilesOver 100 half-page wood profilesData on over 150 related species * Shipping currently not available to Canada or Australia. WOOD SPECIES COVERED IN THE BOOK Full-page profile Half-page profile Mechanical data listed European Silver Fir (Abies alba) Pacific Silver Fir (Abies amabilis) Balsam Fir (Abies balsamea) White Fir (Abies concolor) Grand Fir (Abies grandis) Subalpine Fir (Abies lasiocarpa) California Red Fir (Abies magnifica) Noble Fir (Abies procera) Gidgee (Acacia cambagei) Koa (Acacia koa) Mangium (Acacia mangium) Black wattle (Acacia mearnsii) Australian blackwood (Acacia melanoxylon) Yarran (Acacia omalophylla) [...]