Commodity Education

すべて · 146 希土類元素 · 18 航空宇宙・防衛材料 · 10 農業用鉱物 · 3 バッテリー材料 · 5 銅・電気材料 · 4 エネルギー原材料 · 7 工業用鉱物 · 35 核物質 · 5 貴金属 · 10 半導体材料 · 11 鉄鋼・合金金属 · 13 Wood & Forest Products · 25

重要鉱物 · 63 戦略的 · 36 建設 · 35 副産物のみ · 27 エネルギー転換 · 26 防衛 · 24 半導体チェーン · 17 Forest Product · 12 大規模リサイクル可能 · 9 磁石チェーン · 8 Hardwood · 8 Softwood · 7 Renewable · 6 食料チェーン · 6 Engineered Wood · 4 送電網チェーン · 2

並び替え: 棚名称世界生産量埋蔵量米国の輸入依存度全スクリーナー → 周期表 →

146 materials shown. Figures are from USGS Mineral Commodity Summaries 2026 · as each source defines it for each commodity · 出典 ↗

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棚 01 · 18 素材

希土類元素

最強の磁石と最も輝度の高い蛍光体を生み出す、化学的性質が近い17の元素。

素材	世界生産量 2025	世界埋蔵量	主要生産国	米国が輸入した
Rare Earths (all) クリティカルA family of seventeen metals that are not actually rare in the ground, but are hard to separate…	390,000metric tons · Mine production	85,000,000	China69% 世界生産量に占める割合†	—
Neodymium クリティカルThe rare earth at the heart of the strongest magnet ever made — the kind in headphones, hard…	未公表	—	—	—
Praseodymium クリティカルNeodymium's near-twin, so alike that magnet makers usually do not bother separating the two and…	未公表	—	—	—
Dysprosium クリティカルA heavy rare earth added in small amounts to magnets so they keep working when they get hot.	未公表	—	—	—
Terbium クリティカルThe scarcest of the four magnet rare earths, used in tiny quantities to make a magnet survive…	未公表	—	—	—
Lanthanum クリティカルThe first of the rare earths, used by the tonne in the catalysts that crack crude oil into…	未公表	—	—	—
Cerium クリティカルThe most abundant rare earth — more common in the crust than copper — mostly used as a…	未公表	—	—	—
Samarium クリティカルThe rare earth in the magnet that works where neodymium cannot: very hot, or very cold, or in a…	未公表	—	—	—
Europium クリティカルThe rare earth that glows red under ultraviolet light, and which for decades put the red in…	未公表	—	—	—
Gadolinium クリティカルA rare earth that absorbs neutrons better than almost anything, and that makes MRI scans easier…	未公表	—	—	—
Yttrium クリティカルCounted as a rare earth even though it sits elsewhere on the periodic table, because it behaves…	12,500metric tons · mine production of Y2O3 equivalent contained in rare-earth mineral concentrates	—	Chinaシェア未公表	100%
Scandium クリティカルA light metal that makes aluminium dramatically stronger and weldable — and which is produced…	80.00metric tons · global production	—	Chinaシェア未公表	100%
Holmium クリティカルThe rare earth with the strongest magnetic moment of any element, used in the pole pieces of…	未公表	—	—	—
Erbium クリティカルThe rare earth that amplifies light inside a fibre-optic cable without ever turning it back…	未公表	—	—	—
Thulium クリティカルThe least abundant stable rare earth, used in portable X-ray sources and in surgical lasers.	未公表	—	—	—
Ytterbium クリティカルA rare earth used in the fibre lasers that cut steel in factories, and in some of the most…	未公表	—	—	—
Lutetium クリティカルThe last and densest rare earth, used in the crystals that detect gamma rays inside a PET…	未公表	—	—	—
PromethiumThe one rare earth with no stable form at all — every atom of it is radioactive and decays…	未公表	—	—	—

棚 02 · 10 素材

航空宇宙・防衛材料

高温での強度、または遮蔽特性を基準に選ばれた金属。

素材	世界生産量 2025	世界埋蔵量	主要生産国	米国が輸入した
Titanium クリティカルA metal as strong as steel at about half the weight, which does not corrode in seawater or in…	370,000metric tons · Titanium sponge metal production	—	China70% 世界生産量に占める割合†	—
Titanium Mineral Concentrates クリティカルBlack beach sand — ilmenite and rutile — that is the starting point both for titanium metal and…	9,400thousand metric tons · Mine production: ilmenite, rounded	490,000	—	88%
Tungsten クリティカルThe metal with the highest melting point of them all — you can heat it to 3,400 C before it…	85,000metric tons · Mine production	4,700,000	China79% 世界生産量に占める割合	50%
Niobium クリティカルA metal that makes steel much stronger when added in tiny amounts — a few hundred grams per…	112,000metric tons · Mine production	21,000,000	Brazil93% 世界生産量に占める割合†	100%
Tantalum クリティカルA dense metal whose oxide layer stores charge extremely reliably, which is why it is in the…	2,500metric tons · Mine production	—	Congo (Kinshasa)52% 世界生産量に占める割合	100%
Rhenium クリティカルOne of the rarest metals in the crust, recovered from molybdenum roasting, and the ingredient…	81,000kilograms · Mine production	—	Chile37% 世界生産量に占める割合	75%
Antimony クリティカルA brittle, silvery metalloid used mostly to stop things burning, and in the primers and tracer…	110,000metric tons · Mine production	2,000,000	China36% 世界生産量に占める割合	—
Bismuth クリティカルA heavy metal that is, unusually, not very toxic — which is why it replaces lead in solders…	16,000metric tons · Refinery production	—	China88% 世界生産量に占める割合	92%
Caesium クリティカルThe softest metal, liquid on a warm day, and the element that defines the second.	未公表	—	—	100%
Rubidium クリティカルCaesium's cheaper neighbour, recovered from the same rare deposits, and the basis of the atomic…	未公表	—	—	100%

棚 03 · 3 素材

農業用鉱物

農作物——ひいては人間——を養う採掘由来の肥料成分。

素材	世界生産量 2025	世界埋蔵量	主要生産国	米国が輸入した
Phosphate Rock クリティカルRock full of the element phosphorus — the P in fertiliser, and now the P in the LFP batteries…	250,000thousand metric tons · Mine production	73,000,000	China44% 世界生産量に占める割合	—
Potash クリティカルPotassium salts mined from ancient dried-up seas — the K in NPK fertiliser, which plants need…	49,000thousand metric tons · Mine production	10,000,000	Canada31% 世界生産量に占める割合	92%
Nitrogen (Ammonia)Nitrogen pulled out of the air and joined to hydrogen under pressure — the invention that…	160,000thousand metric tons · Plant production	—	China31% 世界生産量に占める割合†	—

棚 04 · 5 素材

バッテリー材料

充電式セルの内部構造、およびそのセルが接続されるもの。

素材	世界生産量 2025	世界埋蔵量	主要生産国	米国が輸入した
Lithium クリティカルA soft, silvery metal so light it floats on water, and the element that lets a rechargeable…	290,000metric tons · Mine production	37,000,000	Australia32% 世界生産量に占める割合	50%
Cobalt クリティカルA hard, bluish metal that keeps a battery's cathode stable so it does not overheat, and that…	310,000metric tons · Mine production	12,000,000	Congo (Kinshasa)74% 世界生産量に占める割合	79%
Nickel クリティカルA silvery metal that resists rust, which is why it goes into stainless steel — and, more…	3,900,000metric tons · Mine production	140,000,000	Indonesia67% 世界生産量に占める割合	41%
Graphite クリティカルPure carbon in soft, slippery sheets — the same stuff as pencil lead — and the material that…	1,800,000metric tons · Mine production	310,000,000	China78% 世界生産量に占める割合	100%
Manganese クリティカルA brittle grey metal that steel cannot be made without, and that is now being used to stretch…	20,000thousand metric tons · Mine production	1,700,000	South Africa37% 世界生産量に占める割合	100%

棚 05 · 4 素材

銅・電気材料

家庭用配線から国家送電網まで、電流を伝える金属。

素材	世界生産量 2025	世界埋蔵量	主要生産国	米国が輸入した
Copper クリティカルThe reddish metal that carries electricity better than anything except silver, and which humans…	23,000thousand metric tons · Mine production	980,000	Chile23% 世界生産量に占める割合	—
Aluminium クリティカルA light silvery metal made by passing an enormous electric current through dissolved bauxite —…	74,000thousand metric tons · Smelter production	—	China61% 世界生産量に占める割合†	60%
Bauxite クリティカルA reddish soil-like rock, formed where tropical rain has rotted rock for millions of years, and…	440,000thousand metric dry tons · Bauxite, mine production	29,000,000	—	75%
Alumina クリティカルA fine white powder of aluminium oxide, the halfway product between bauxite rock and aluminium…	150,000thousand metric dry tons · Alumina, refinery production	—	China62% 世界生産量に占める割合†	71%

棚 06 · 7 素材

エネルギー原材料

現代経済がいまだ燃焼に依存する炭素系燃料・ガス、およびそれらが産出する岩石。

素材	世界生産量 2025	世界埋蔵量	主要生産国	米国が輸入した
Crude OilAncient marine plankton, cooked underground for millions of years into a liquid that carries…	未公表	—	—	—
Oil Sands & BitumenSand soaked in oil so thick it will not flow — it has to be mined like ore or heated…	未公表	—	—	—
Natural GasMostly methane, the lightest hydrocarbon, and the source of nearly all the hydrogen used by…	未公表	—	—	—
Metallurgical CoalCoal of the specific quality that, when baked without air, turns into coke — the hard carbon…	未公表	—	—	—
Thermal CoalCoal burned to make steam and therefore electricity — still, despite everything, one of the…	未公表	—	—	—
Petroleum CokeThe solid carbon left at the bottom of an oil refinery, and the raw material for both aluminium…	未公表	—	—	—
PeatHalf-rotted plant matter from waterlogged bogs — the first stage on the road from a swamp to a…	17,000thousand metric tons · Mine production	13,000,000	Finland15% 世界生産量に占める割合†	80%

棚 07 · 35 素材

工業用鉱物

セメント、ガラス、化学品、研磨材としてトン単位で使用される非金属の岩石および塩類。

素材	世界生産量 2025	世界埋蔵量	主要生産国	米国が輸入した
CementPowdered limestone and clay cooked at 1,450 C, which sets hard when mixed with water — the glue…	3,800,000thousand metric tons · Cement production	—	China45% 世界生産量に占める割合†	21%
SaltSodium chloride — the seasoning on a table, and the feedstock for the chlorine and caustic soda…	270,000thousand metric tons · Mine production	—	China21% 世界生産量に占める割合†	31%
Soda AshSodium carbonate, mined from trona rock or made from salt, and the second ingredient in almost…	19,000thousand metric tons · Mine production: natural, rounded	25,000,000	—	—
Fluorspar クリティカルCalcium fluoride, the mineral that every fluorine atom in industry ultimately comes from —…	10,000thousand metric tons · Mine production	330,000	China60% 世界生産量に占める割合	100%
Barite クリティカルA very heavy, soft mineral used mostly to weigh down drilling mud so an oil well does not blow…	8,700thousand metric tons · Mine production	—	India34% 世界生産量に占める割合	75%
Boron クリティカルAn element that makes glass resist thermal shock, fibreglass strong, and — with iron and…	未公表	—	Turkeyシェア非公表（企業保護）	—
HeliumThe only element cold enough to keep an MRI magnet superconducting, and the only one light…	190.0million cubic meters · Helium Production	—	United States43% 世界生産量に占める割合†	—
Silicon Carbide & AbrasivesMan-made grit — silicon carbide and fused alumina — harder than almost every natural mineral…	未公表	—	—	—
SulfurA yellow element stripped out of oil and gas to stop it polluting, then turned into sulfuric…	84,000thousand metric tons · Production, all forms	—	China23% 世界生産量に占める割合†	—
LimeLimestone burned until it becomes quicklime — a chemical used to purify steel, treat water and…	420,000thousand metric tons · Production	—	China74% 世界生産量に占める割合†	—
Construction Sand & GravelThe most-mined material on Earth by weight, and the one nobody thinks of as mining.	未公表	—	—	—
GypsumA soft white rock that becomes plasterboard — the interior surface of most buildings in the…	160,000thousand metric tons · Mine production	—	United States12% 世界生産量に占める割合†	—
Diamond (Industrial)Diamond used not as a gem but as a cutting edge — most of it grown in a press rather than dug…	38.00million carats · Mine production	1,700	Russia42% 世界生産量に占める割合†	—
ClaysSoft, fine-grained rock made of microscopic plates that slide over each other when wet — which…	20,000thousand metric tons · Mine production: Bentonite, rounded	—	—	—
MicaA mineral that splits into sheets so thin you can see through them, and that resists both heat…	未公表	—	—	—
Talc & PyrophylliteThe softest mineral there is — a fingernail scratches it — used as a filler that makes plastics…	6,900thousand metric tons · Mine production	—	Korea, Republic of4% 世界生産量に占める割合†	—
PerliteA volcanic glass with water trapped inside it that pops like popcorn when heated, expanding to…	4,600thousand metric tons · Production	—	China33% 世界生産量に占める割合†	23%
DiatomiteRock made from the glass skeletons of microscopic algae, so porous that a lump of it floats on…	2,500thousand metric tons · Mine production	—	United States29% 世界生産量に占める割合†	—
VermiculiteA mica-like mineral that unfolds into a concertina when heated, becoming light, fireproof and…	460.0thousand metric tons · Mine production	—	South Africa35% 世界生産量に占める割合†	25%
Industrial Sand & GravelSand selected for what it is made of rather than what size it is — nearly pure quartz, for…	430,000thousand metric tons · Mine production	—	United States28% 世界生産量に占める割合†	—
Magnesium CompoundsMagnesia and its relatives, made from magnesite rock or extracted from seawater, which survive…	21,000thousand metric tons · Mine production	7,800,000	—	59%
Iron Oxide PigmentsRust, refined — the reds, yellows, browns and blacks that have coloured paint and pottery since…	未公表	—	—	—
ArgonAlmost one percent of the air you are breathing, and the cheapest way to keep oxygen away from…	未公表	—	—	—
IodineA purple-black element that turns straight from solid to vapour, extracted from ancient nitrate…	34,000metric tons · Mine production	6,300,000	—	50%
BromineThe only non-metal that is liquid at room temperature, pulled out of very salty water.	430,000metric tons · Production	—	—	25%
StrontiumA soft metal whose salts burn bright red, which is why every red firework contains it.	450,000metric tons · Mine production	—	Iran56% 世界生産量に占める割合†	100%
Feldspar & Nepheline SyeniteThe most abundant mineral group in the crust, used as the flux that lets glass and ceramic melt…	31,000thousand metric tons · Mine production	—	India19% 世界生産量に占める割合†	95%
Garnet (Industrial)A hard, sharp-edged mineral more familiar as a gemstone, used industrially as the grit in…	730,000metric tons · Mine production	—	Australia48% 世界生産量に占める割合†	71%
Zeolites (Natural)Minerals full of molecule-sized cages that trap specific ions and gases and let everything else…	1,300,000metric tons · Mine production	—	Slovakia22% 世界生産量に占める割合†	—
Kyanite & Related MineralsBlue-bladed crystals that expand rather than shrink when fired, which makes them the backbone…	未公表	—	—	—
Pumice & PumiciteVolcanic froth — rock so full of gas bubbles that it floats — quarried for lightweight concrete…	20,000thousand metric tons · Mine production	—	Turkey48% 世界生産量に占める割合†	—
Crushed StoneRock blasted and broken to size — limestone, granite, trap rock — and, with sand, the largest…	未公表	—	—	—
Dimension StoneRock cut into blocks and slabs rather than crushed — granite, marble, limestone, slate — sold…	未公表	—	—	85%
WollastoniteA needle-shaped white mineral used as a safe replacement for asbestos fibre in brakes, boards…	860,000metric tons · Mine production	—	—	—
AsbestosA group of naturally fibrous minerals that are strong, fireproof, cheap — and cause fatal lung…	960,000metric tons · Mine production	150,000,000	Russia32% 世界生産量に占める割合†	100%

棚 08 · 5 素材

核物質

核分裂の燃料、減速材、遮蔽材、および核融合炉が必要とする金属。

素材	世界生産量 2025	世界埋蔵量	主要生産国
UraniumA heavy, faintly radioactive metal whose nucleus can be split, releasing about two million…	未公表	—	—
ThoriumA weakly radioactive metal three to four times more common than uranium, which can be bred into…	未公表	—	—
Zirconium クリティカルA metal that barely absorbs neutrons, which is why nuclear fuel rods are wrapped in it, and…	1,200thousand metric tons · Zirconium mineral concentrates, mine production (thousand metric tons, gross weight)	70,000	Australia33% 世界生産量に占める割合†
Hafnium クリティカルZirconium's chemical shadow — always found with it, almost impossible to separate from it, and…	未公表	—	—
Beryllium クリティカルA very light, very stiff metal that is transparent to X-rays and dangerous to breathe as dust.	430.0metric tons · Mine production	—	United States53% 世界生産量に占める割合

棚 09 · 10 素材

貴金属

金、銀、および白金族元素——貨幣、触媒、電気接点に用いられる。

素材	世界生産量 2025	世界埋蔵量	主要生産国	米国が輸入した
Platinum-Group Metals クリティカルSix metals — platinum, palladium, rhodium, iridium, ruthenium and osmium — that occur together…	未公表	76,000,000	—	—
Silver クリティカルThe best electrical conductor there is, and the metal that has been used as money for longer…	26,000metric tons · Mine production	610,000	Mexico24% 世界生産量に占める割合	77%
GoldThe metal that does not tarnish, does not corrode and never runs out once mined — which is why…	3,300metric tons · Mine production	66,000	China12% 世界生産量に占める割合†	—
Platinum クリティカルA dense, unreactive metal that speeds up chemical reactions without being consumed by them.	170,000kilograms · Mine production: Platinum, rounded	—	South Africa71% 世界生産量に占める割合	89%
Palladium クリティカルPlatinum's cheaper cousin for most of the twentieth century, then briefly more expensive than…	190,000kilograms · Mine production: Palladium, rounded	—	Russia44% 世界生産量に占める割合	57%
Rhodium クリティカルThe rarest of the metals traded in any volume, produced in tens of tonnes a year, and the only…	未公表	—	—	—
Iridium クリティカルThe most corrosion-resistant metal known, and the second densest — a litre of it weighs about…	未公表	—	—	—
Ruthenium クリティカルA hard platinum-group metal used in tiny quantities inside hard drives and increasingly in chip…	未公表	—	—	—
OsmiumThe densest naturally occurring element, and one of the least used — most of it sits unrefined…	未公表	—	—	—
GemstonesMinerals people want because of how they look — hardness, clarity and colour, priced on rarity…	69,000 thousands of carats · Mine production	2,000,000	Russia30% 世界生産量に占める割合†	99%

棚 10 · 11 素材

半導体材料

半導体チップが成長・ドープ・配線される際に用いられる超高純度の元素と化合物。

素材	世界生産量 2025	主要生産国	米国が輸入した
Silicon クリティカルThe second-most-common element in the Earth's crust — ordinary sand — purified until only one…	5,000thousand metric tons · Ferrosilicon	China87% 世界生産量に占める割合	—
Gallium クリティカルA silvery metal that melts in your hand, and the basis of the compound semiconductors in fast…	900,000kilograms · Primary production	China100% 世界生産量に占める割合	100%
Germanium クリティカルThe element the very first transistors were made from, now used mainly for infrared lenses and…	未公表	Chinaシェア未公表	50%
Indium クリティカルA soft metal whose oxide is both transparent and electrically conductive — the invisible wiring…	1,100metric tons · Refinery production	China69% 世界生産量に占める割合	100%
Tellurium クリティカルA brittle, silvery element recovered from the slime at the bottom of a copper refinery tank…	1,000metric tons · Refinery production	China80% 世界生産量に占める割合	25%
Arsenic クリティカルFamous as a poison, but in ultra-pure form it is half of gallium arsenide, the compound behind…	61,000metric tons · Production (arsenic trioxide, gross weight)	Peru49% 世界生産量に占める割合	100%
High-Purity QuartzQuartz sand so free of other elements that it can be melted into the crucible a silicon crystal…	未公表	—	—
NeonA noble gas so unreactive it forms no compounds at all, separated out of ordinary air in tiny…	800.0million liters · Rare gases production, (million liters)	United States14% 世界生産量に占める割合†	52%
KryptonA rare noble gas, about one part per million of the air, separated only where enough air is…	110.0million liters · Rare gases production, (million liters)	United States1% 世界生産量に占める割合†	93%
XenonThe rarest stable gas in the atmosphere — under one part in ten million — and the heaviest…	12.00million liters · Rare gases production, (million liters)	United States1% 世界生産量に占める割合†	98%
ThalliumA soft, extremely toxic metal recovered in tiny amounts from smelter dusts.	未公表	—	—

棚 11 · 13 素材

鉄鋼・合金金属

鉄と、それを数千種類の異なる鋼に変える十数種類の元素。

素材	世界生産量 2025	世界埋蔵量	主要生産国	米国が輸入した
Iron OreRust-coloured rock that is roughly one-third to two-thirds iron, and the single largest tonnage…	2,600,000thousand metric tons · Mine production: Usable ore, rounded	87,000	—	—
Iron & SteelIron with a little carbon in it, and the most-produced manufactured material on the planet.	360.0million metric tons · world iron slag production was estimated to be between 330 million and 390 million tons,	—	—	—
Chromium クリティカルThe element that makes stainless steel stainless — at about eleven percent chromium, steel…	51,000thousand metric tons · Mine production	540,000	South Africa45% 世界生産量に占める割合	79%
MolybdenumA silvery metal added to steel so it keeps its strength at high temperature and under pressure.	260,000metric tons · Mine production	17,000	China37% 世界生産量に占める割合†	—
Vanadium クリティカルA metal that makes rebar dramatically stronger in tiny doses, and that can also store…	110,000metric tons · Mine production	21,000	China75% 世界生産量に占める割合	41%
Zinc クリティカルThe metal that steel is dipped in so it does not rust — a sacrificial coating that corrodes…	13,000thousand metric tons · Mine production	240,000	China32% 世界生産量に占める割合	—
Tin クリティカルA soft metal with a low melting point, which is why nearly every electrical joint in every…	290,000metric tons · Mine production	6,000,000	China24% 世界生産量に占める割合	—
Lead クリティカルA soft, dense, blue-grey metal that blocks radiation and stores charge cheaply — and that is…	4,500thousand metric tons · Mine production	95,000	China42% 世界生産量に占める割合	—
Magnesium Metal クリティカルThe lightest structural metal, about a third lighter than aluminium, and the ingredient that…	1,100thousand metric tons · Smelter production	—	China86% 世界生産量に占める割合†	75%
CadmiumA toxic soft metal recovered from zinc refining, now used mainly in thin-film solar panels…	23,000metric tons · Refinery production	—	China41% 世界生産量に占める割合†	25%
SeleniumAn element recovered from copper refinery slimes, used in glass, in animal feed and in…	3,800metric tons · Refinery production	—	China53% 世界生産量に占める割合†	50%
MercuryThe only metal that is liquid at room temperature, and one of the most tightly regulated…	210.0metric tons · Mine production	—	China95% 世界生産量に占める割合†	—
Iron & Steel ScrapOld steel collected to be melted into new steel — the largest recycling stream on the planet by…	未公表	—	—	—

棚 12 · 25 素材

Wood & Forest Products

The only structural material that grows back - what it is, where it is standing, how it is cut and graded, and who buys it.

素材	世界生産量	主要生産国
Standing TimberThe wood that is still a tree. Every board, panel and sheet of paper on the site starts here…	未公表	—
Industrial RoundwoodLogs. The tree after felling and before anything has been done to it except cutting it to…	未公表	—
Softwood LumberSawn boards from coniferous trees - the 2x4s and joists that most of the world's houses are…	未公表	—
Hardwood LumberSawn boards from broadleaved trees - what furniture, flooring, cabinets and barrels are made of.	未公表	—
Wood-Based PanelsSheets made by gluing wood back together - veneers, chips, strands or fibres pressed into a…	未公表	—
PlywoodThin layers of wood peeled from a log and glued in a stack with the grain crossed at right…	未公表	—
Oriented Strand BoardA structural panel made from long wood strands laid in layers and pressed - the cheaper…	未公表	—
Mass TimberStructural timber built up from smaller pieces into beams, columns and whole floor slabs big…	未公表	—
Wood PulpWood reduced to its individual fibres, by cooking or by grinding, ready to be made into paper…	未公表	—
Wood PelletsSawdust and shavings dried and squeezed into uniform cylinders that can be handled, shipped and…	未公表	—
Wood FuelWood cut to be burned - firewood and the charcoal made from it. Still the largest single use of…	未公表	—
Recovered WoodWood collected after use - pallets, crates, demolition timber and furniture - and sent back…	未公表	—
Southern Yellow PineA fast-grown, dense, strong southern US pine - the workhorse of American framing and the only…	未公表	—
Douglas FirNot a true fir. The strongest and stiffest softwood in wide structural use, and the species…	未公表	—
Spruce-Pine-Fir (SPF)A marketing group, not a species: several interchangeable northern softwoods graded and sold…	未公表	—
Hem-FirWestern hemlock sold together with the true firs that grow alongside it, as a single graded…	未公表	—
Western Red CedarA light, soft, aromatic softwood whose heartwood resists decay without any treatment at all.	未公表	—
Radiata PineA Californian pine with a tiny natural range that became the most widely planted plantation…	未公表	—
White OakA dense, pale hardwood whose closed cell structure makes it watertight - which is why barrels…	未公表	—
Red OakThe volume hardwood of North America: strong, open-pored, pinkish, and sawn in greater quantity…	未公表	—
Hard MapleA very hard, pale, fine-grained hardwood that takes heavy wear without denting - the standard…	未公表	—
Black WalnutThe dark, strong, dimensionally stable hardwood that American furniture and gunstocks are made…	未公表	—
Yellow PoplarA fast-growing, light, straight-grained American hardwood - neither a poplar nor yellow in the…	未公表	—
TeakA tropical hardwood whose natural oils make it hold up outdoors and against saltwater better…	未公表	—
EucalyptusThe fastest-growing hardwood planted at scale, harvested on rotations as short as six or seven…	未公表	—