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Yellow Buckeye (Aesculus octandra) Common Name(s): Buckeye, Ohio Buckeye, Yellow Buckeye Scientific Name: Aesculus spp. (A. flava and A. glabra) Distribution: Eastern United States Tree Size: 50-75 ft (15-23 m) tall, 1.5-2 ft (.5-.6 m) trunk diameter Average Dried Weight: 25 lbs/ft3 (400 kg/m3) Specific Gravity (Basic, 12% MC): .33, .40 Janka Hardness: 350 lbf (1,560 N) Modulus of Rupture: 7,500 lbf/in2 (51.7 MPa) Elastic Modulus: 1,170,000...

Horse Chestnut

Horse Chestnut (Aesculus hippocastanum) Common Name(s): Horse Chestnut Scientific Name: Aesculus hippocastanum Distribution: Eastern Europe Tree Size: 65-100 ft (20-30 m) tall, 2-3 ft (.6-1.0 m) trunk diameter Average Dried Weight: 31 lbs/ft3 (500 kg/m3) Specific Gravity (Basic, 12% MC): .39, .50 Janka Hardness: 820 lbf (3,630 N) Modulus of Rupture: 9,790 lbf/in2 (67.5 MPa) Elastic Modulus: 1,036,000 lbf/in2 (7.15 GPa) Crushing Strength: 5,460...

Top Ten Softest Woods

by Eric Meier The most common test for testing wood hardness is known as the Janka hardness test. The actual number listed in the wood profile is the amount of pounds-force (lbf) or newtons (N) required to imbed a .444" (11.28 mm) diameter steel ball into the wood to half the ball’s diameter. Janka hardness testing While most people would be looking for the hardest wood, just out of curiosity, here's a list of the ten softest woods on the site. Keep in mind that five out of these ten woods (including the three softest) are considered hardwoods. This just goes to show that the terms hardwood and softwood merely refer to the botanical classification of the trees as either conifers (softwoods) or angiosperms (hardwoods). There's no guarantee that any given hardwood will actually be hard!   Western Red Cedar (Thuja plicata) 350 lbf (1,560 N) This softie is a common soundboard material on guitars, though it's softness makes it a challenge to properly handle without denting or gouging it during construction.   Black Cottonwood / Quaking Aspen (Populus tremuloides and P. trichocarpa) 350 lbf (1,560 N) These two woods are closely related and have the same Janka hardness values. Aspen [...]

Bow Woods (From A Mathematical Perspective)

by Eric MeierDisclaimer: I am neither a bowyer/archer nor a materials scientist/engineer. The data and ideas presented in this article are by no means meant to be considered authoritative or precisely correlated to real-world situations. The purpose of the article is simply to foster imagination and exploration in the area of bow woods and what does/does not constitute a good bow wood.Archery bows present a somewhat unique challenge in finding the right requirements for the best wood. In the simplest and crudest terms possible, the wood should be able to bend, but not break. With all of the data available on the Wood Database, there's no single measurement that directly indicates a wood's ability to bend easily without breaking. Instead, it is primarily a combination of two values: the wood's modulus of elasticity (also known as MOE), and the modulus of rupture (also known as MOR).Again, dealing in the simplest terms:The modulus of elasticity (MOE) measures how easily a wood will bend, (the higher the number, the more stubborn and stiff it will be).The modulus of rupture (MOR) measures how easily the wood will break, (the higher the numer, the harder it is to break or rupture).In terms of looking at the raw mechanical data of [...]

Wood Trading

by Eric Meier (IWCS #9701)Are you interested in getting or using new and unusual wood species? Are you a wood collector? If so, maybe we can trade. If you are a member of the International Wood Collectors Society (IWCS), then you probably already know that the standard size for wood samples is 6" (long) x 3" (wide) x 1/2" (thick). What I've got for tradePlease note that this is not a for-sale list—I'm only looking to extend my diversity of wood species and therefore multiply the reach of the site. For purchasing wood samples, I'd direct you to other sources such as Gary Green, Carlton McLendon Inc, or the man who quite literally wrote the book on wood collecting, Alan Curtis. # Common Name Scientific Name Notes 001Pacific silver firAbies amabilisknot002Pacific silver firAbies amabilisapproximately 2.4" wide006Box elderAcer negundodefects007Red mapleAcer rubrumslight defects008Hard mapleAcer saccharum009Mountain mapleAcer spicatumglued up (two piece), defects010Ambrosia mapleAcer sp.011Ambrosia mapleAcer sp.streaked, but without bug holes012Yellow buckeyeAesculus flava (= A. octandra)191ChamfutaAfzelia quanzensis013KauriAgathis australisswamp-recovered Kauri015LebbeckAlbizia lebbeck158LebbeckAlbizia lebbeck2 7/8" wide016Black sirisAlbizia odoratissima017BoonareeAlectryon oleifoliusglued up (two piece), 7/16" thick, 5 3/4" long018BoonareeAlectryon oleifoliusmostly sapwood019BulokeAllocasuarina luehmanniiminor defects020BulokeAllocasuarina luehmanniidefects021BulokeAllocasuarina luehmannii022Red alderAlnus rubraknot one side259Emien Alstonia congensis2 7/8" [...]

State Trees of the United States

StateState treeScientific Name Alabama Longleaf Pine Pinus palustris Alaska Sitka Spruce Picea sitchensis Arizona Blue Palo Verde Parkinsonia florida Arkansas Loblolly Pine Pinus taeda California Coast Redwood and Giant Sequoia Sequoia sempervirens and Sequoiadendron giganteum Colorado Blue Spruce Picea pungens Connecticut White Oak Quercus alba District of Columbia Scarlet Oak Quercus coccinea Delaware American Holly Ilex opaca Florida Cabbage Palmetto Sabal palmetto Georgia Live Oak Quercus virginiana Hawaii Candlenut Tree Aleurites moluccana Idaho Western White Pine Pinus monticola Illinois White Oak Quercus alba Indiana Tulip Poplar Liriodendron tulipifera Iowa Bur Oak Quercus macrocarpa Kansas Eastern Cottonwood Populus deltoides Kentucky Tulip Poplar Liriodendron tulipifera Louisiana Bald Cypress Taxodium distichum Maine Eastern White Pine Pinus strobus Maryland White Oak Quercus alba Massachusetts American Elm Ulmus americana Michigan Eastern White Pine Pinus strobus Minnesota Red Pine Pinus resinosa Mississippi Southern Magnolia Magnolia grandiflora Missouri Flowering Dogwood Cornus florida Montana Ponderosa Pine Pinus ponderosa Nebraska Eastern Cottonwood Populus deltoides Nevada Single-leaf Pinyon & Bristlecone pine Pinus monophylla & Pinus longaeva New Hampshire Paper Birch Betula papyrifera New Jersey Northern Red Oak Quercus rubra New Mexico Pinyon Pine Pinus edulis New York Sugar Maple Acer saccharum North Carolina Pine Pinus North Dakota American Elm Ulmus [...]

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

AN AMAZON BEST-SELLER  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) Bigleaf [...]