Select two species for a detailed comparison.
Red oak trees grow only naturally and almost exclusively in North America, although planted elsewhere. They are widely distributed throughout most of the eastern United States in mixed hardwood forests. The trees are very tall. There are many sub-species, all within the red oak classification, which grow from north to south; some high in the mountains and others on low land giving rise to different characteristics. Thus there are significant variations in red oaks depending on location, in particular between the slower grown northern and faster grown southern trees. Red oaks are regarded as highly sustainable for both domestic and export consumption and, being the largest species group, are more abundant than the white oaks.
FIA data shows U.S. red oak growing stock is 2.62 billion m3, 18% of total U.S. hardwood growing stock. American red oak is growing 60.6 million m3 per year while the harvest is 31.9 million m3 per year. The net volume (after harvest) is increasing 28.7 million m3 each year. U.S. red oak growth exceeds or is in balance with harvest in all states except Texas.
Red oak from the USA is readily available as sawn lumber and veneer, in a wide range of grades and sizes. Thicker lumber (10/4" & 12/4") can be sourced in relatively small volumes from specialist suppliers, but is widely produced through out the hardwood industry from 4/4" (25.4mm) through to 8/4" (52mm). In the north the sapwood tends to be less due to the shorter growing season, than in the south where the wood is grown faster with more open grain and texture. Red oak may be sold on the basis of 'northern' and 'southern', but this may be an over-simplification of the differences according to growing location.
American red oaks have very good overall strength properties relative to weight. The wood is hard and heavy with medium bending strength, stiffness and high crushing strength. It has excellent steam bending capability. Being hard, stable when dry and easy to finish and stain, it is ideal for furniture and flooring.
To find out more about the mechanical properties of red oak read the full structural guide.
Red oak lumber machines well, with good performance in nailing and screwing, although pre-boring is recommended. It glues well and can be stained and polished to a very good finish. Being porous, red oak absorbs all treatments. The wood dries best slowly to minimise degrade, but with high shrinkage and can be susceptible to movement in performance in humid conditions. The wood is rated as slightly resistant to heartwood decay, but moderately easy to treat with preservatives. This makes red oak suitable for being thermally modified.
This sustainably managed species group from natural forests of North America, with excellent environmental credentials, is a key species in many export markets. Its main uses are in furniture, flooring, doors, architectural joinery, mouldings and kitchen cabinets. It is also used in certain applications for construction.
American alder trees grow prolifically in the Pacific Northwest under sustainable management. Alder has a relatively short rotation, taking less time to harvest than most other hardwoods.
Alder is almost white when freshly cut, but quickly changes on exposure to air, becoming light brown with a yellow or reddish tinge. There is no visible difference between the sap and the heartwood, although heartwood is formed only in older or mature trees. The wood of alder is fairly straight grain, somewhat similar in character to cherry, with uniform texture.
Alder has medium density, but is relatively soft. It has low bending strength, shock resistance, and stiffness. It is easily turned and can be polished and stained to an excellent finish.
American ash trees grow commonly throughout the eastern United States in mixed hardwood forests, from the north in New York State to the southern States along the Gulf of Mexico, and everywhere in between. They grow high in the mountains and low on the plains and coastal areas giving rise to great variety of character. With such widespread distribution in latitude, climate and soil conditions, there are significant variations in ash depending on location, in particular between the slower grown northern and faster grown southern trees. There are also sub-species that add to this variety. Despite some longer-term threats by forest pests and disease to the ash standing stock of timber, ash is a prolific species.
Forest Inventory Analysis (FIA) data shows U.S. ash growing stock is 657 million m3, 4.5% of total U.S. hardwood growing stock. American ash is growing 3.3 million m3/per year while the harvest is 6.9 million m3 per year. Net volume (after harvest) is increasing -3.5 million m3 each year. The 2014 inventory indicates that U.S. ash growth exceeds harvest in all major supplying states except Michigan and Ohio, which are central to the Emerald Ash Borer (EAB) infestation. Ash mortality rates and removals are expected to rise in the immediate future, likely in excess of growth in some states, due to the EAB infestation.
Ash wood has very good overall strength properties relative to its weight. It has excellent shock resistance, which takes some of the pain from those using hand tools and sports equipment, such as baseball bats. It steam bends very well, so is a favourite of furniture makers and hobbyists. Being very hard, stable when dry and easy to finish and stain, it is ideal for furniture and flooring.
To find out more about the mechanical properties of ash read the full structural guide.
Ash lumber machines well, with good performance in nailing, screwing, gluing and can be stained and polished to a very good finish. Black stained ash has experienced several successful fashion cycles in furniture. The wood dries fairly easily with minimal degrade. With good stability there is not much movement in performance. Ash veneer laminates well to board materials. Ash is not resistant to heartwood decay and the heartwood is moderately resistant to preservative treatment, but the sapwood is permeable. This makes ash very suitable for being thermally modified, as has now been proven through its widespread use for decking, cladding, worktops and garden furniture.
This sustainably managed wood from natural forests of North America, with its excellent environmental credentials, is popular with designers, architects, specialist users and consumers around the world. Its main uses are furniture, flooring, doors, architectural joinery and mouldings, kitchen cabinets, tool and sport handles.
American aspen trees grow in dense stands that are easily sustainable but are commercially less important than some other American hardwoods.Tress can grow up to 120ft (48m) and up to 4ft (1.2m) in diameter. Due to genetic variability trunks can either be quite cylindrical with little taper and few limbs, or crooked and contorted. Aspen is one of the species that benefits from clear-cutting to regenerate, being shade intolerant, and regrows both from seedlings and root suckers. It is a natural pioneer species after forest fires. The four main aspen producing states are Minnesota, Wisconsin, Maine and Michigan.
Forest Inventory Analysis (FIA) data shows U.S. aspen growing stock is 637 million m3, 4.3% of total U.S. hardwood growing stock. American aspen is growing 10.4 million m3 per year while the harvest is 8.9 million m3 per year. The net volume (after harvest) is increasing 1.5 million m3 each year.
Aspen from the USA is available as sawn lumber and veneer. Lumber tends to be available mainly in thinner sizes, 4/4” (1’’ or 25.4mm) and 5/4” (1.25” or 32mm), although limited volumes of 6/4” (38mm) and 8/4” 52mm may be available from some suppliers.
The sap of aspen is white and the heartwood is light brown with only a small difference between the two. The wood of aspen has a fine uniform texture and straight grain.
Aspen has low density and the wood is light and soft. It has a very low bending classification with low strength and stiffness but has medium shock resistance.
This fast growing hardwood, which is common across the USA, is used for furniture parts, particularly drawer sides. It is also used in a variety of applications including doors, interior joinery, mouldings and picture frames. Specialist uses include seating in saunas due to its low conductivity of heat and in food packaging and chopsticks due to lack of odour and taste. Aspen is also used for pulp for paper.
American basswood is botanically related to the lime tree found in Europe. The trees are generally large in height and diameter, often with straight trunks and relatively free of limbs. Basswood can be found growing throughout the USA in natural hardwood forests.
Forest Inventory Analysis (FIA) data shows U.S. basswood growing stock is 210 million m3, 1.4% of total U.S. hardwood growing stock. American basswood is growing 3.3 million m3 per year while the harvest is 1.7 million m3 per year. The net volume (after harvest) is increasing by 1.6 million m3 each year. U.S. basswood growth exceeds or is in balance with harvest in all the main producing states.
Basswood from the USA is available in relatively limited volumes compared to some other species, both as sawn lumber and veneer. Lumber is available in a range of grades and thickness from 4/4” (25.4mm) right through to 16/4” (102mm) due to its ease of drying. Basswood lumber is also available in 9/4” (56mm) a specially produced thickness for production of window shutters and venetian blinds.
The sap of basswood tends to be large and is creamy white in colour giving way to the heartwood that is pale to reddish brown. It may display dark streaks which are not a defect. The difference between sap and heartwood is small and may be indistinct. The wood of basswood has a fine uniform texture and straight grain, which is not distinct.
Basswood is light and soft but said to be ‘tough’, with low density and strength. It has poor steam bending classification.
This unique hardwood, growing in natural forests in the USA, is considered the best species for venetian blinds and internal shutters. It is widely used for carving, turning, mouldings and furniture. Specialist uses include pattern making and musical instruments, especially for piano parts.
American forest cherry trees grow principally in the northeast of the USA in mixed hardwood forests. The species is different from the many floral cherries planted throughout the world. It is a single species; the trees growing tall and often in dense stands in several U.S. states, notably Pennsylvania, New York, Virginia and West Virginia. Cherry has a relatively short rotation, taking less time to mature than other hardwoods. Much of the current resource is the result of cherry’s ability to regenerate naturally after forest fires.
FIA data shows U.S. cherry growing stock is 423.6 million m3, 2.9% of total U.S. hardwood growing stock. American cherry is growing 10.3 million m3 per year while the harvest is 4.9 million m3 per year. The net volume (after harvest) is increasing by 5.4 million m3 each year. U.S. cherry growth exceeds harvest in all the main producing states.
The heartwood of cherry can vary from rich red to reddish brown and darkens on exposure to light with time. The sapwood is creamy white. Although the difference between heart and sap colour is marked, this can be reduced by steaming. The wood of cherry has a fine uniform, straight and unpronounced grain with a fine smooth texture. The small brown pith flecks, pin knots and gum pockets or streaks are natural characteristics of cherry, but their occurrence varies according to region.
Cherry has medium density, with good wood bending properties, medium strength and shock resistance, but low stiffness, and can be steam bent with care. Being hard and stable when dry the wood is very easy to stain and finish to an excellent surface. It is highly prized for furniture and interior joinery. As a relatively soft species, American cherry is only suitable for flooring in areas with low traffic, such as bedrooms, or in cultures where shoes are not worn in homes – as in Asia.
This sustainably managed wood from natural forests of North America, with excellent environmental credentials, is revered worldwide for its warmth of colour and fine finish. It is highly suitable for furniture, cabinet making and high class joinery. It is widely used for doors, panelling, architectural interior joinery, mouldings and kitchen cabinets, and some flooring. It is also used in certain specialist applications such as musical instruments and boat interiors.
American eastern cottonwood trees are fast growing and the largest of this genus grows widely across the USA and is normally associated with water. They can be up to 8 feet in diameter. Cottonwood may be referred to as white poplar and should not be confused with tulipwood, known as yellow poplar in the USA.
FIA data shows U.S. cottonwood growing stock is 236 million m3, 1.5% of total U.S. hardwood growing stock. U.S. cottonwood is growing 4.3 million m3 per year while the harvest is 1.8 million m3 per year. The net volume (after harvest) is increasing 2.6 million m3 each year. American cottonwood growth exceeds harvest in all the main producing states except Maine (where it is mainly planted in urban areas), Nebraska and Texas. Cottonwoods are declining in some semi-arid areas of the U.S. due to drought, invasion of exotic species and overgrazing.
American cottonwood is available as sawn lumber and veneer but may only be available in limited volumes of export specifications, determined by current export demand. Cottonwood lumber is mainly available from southern producers predominantly in 4/4” (25.4mm) and 5/4” (32mm), where it needs to be processed quickly when freshly cut (green) to avoid checking and blue staining.
Cottonwood is a porous wood with a coarse texture. It is generally straight grained with relatively few defects. The sap is white, but may contain brown streaks. The heartwood is pale to light brown.
The wood of cottonwood is relatively lightweight and soft. It is weak in bending and compression as well as shock resistance. Cottonwood has no taste or odour when dry.
Traditionally used for venetian blinds, American cottonwood is used for furniture, especially reproduction furniture and furniture parts. Other uses include internal joinery and mouldings.
American red elm trees are now naturally regenerating in some regions making supplies patchy. Distribution is widespread but trees are greatly influenced by site conditions. Trees are relatively small, often with divided trunks.
FIA data shows U.S. elm growing stock is 298 million m3, 2.0% of total U.S. hardwood growing stock. American elm is growing 5.9 million m3 per year while the harvest is 2.5 million m3 per year. The net volume (after harvest) is increasing 3.41 million m3 each year. U.S. elm growth exceeds harvest in most significant producing states with the exception of Ohio. Despite surviving Dutch elm disease American elm is still susceptible to the disease which has impacted on growth and harvest in some States.
Elm from the USA is available in very limited commercial volumes and sawn lumber is produced mainly in 4/4" (25.4mm) thickness. As a result specifications and grades for export may be difficult to source on a regular basis. Veneer may also be available from specialist suppliers.
The close grain red elm may be straight or severely interlocked, with a coarse texture. The narrow sap is greyish white to light brown and the heartwood is light to dark brown in colour. Bird pecks are found in elm and are regarded as a natural characteristic and not considered a defect under NHLA Grading Rules.
The wood of red elm is moderately heavy, hard and strong. It is stiff with excellent bending and shock resistance.
American elm, when it is available is an attractive and desirable species for furniture and cabinet making and can also be used for internal joinery, flooring and panelling.
American gum trees are large with straight trunks growing widely across the South Eastern USA. There are several other, non-commercial, gums that also grow across the USA.
FIA data shows U.S. gum growing stock is 714.6 million m3, 4.9% of total U.S. hardwood growing stock. American gum is growing 22.9 million m3 per year while the harvest is 11.7 million m3 per year. The net volume (after harvest) is increasing 11.2 million m3 each year. U.S. gum growth exceeds or is in balance with harvest in all the main producing states.
American gum is available as sawn lumber and veneer in a variety of grades and sizes. It is usually sold as sapgum with no colour specification. Under NHLA Grading Rules each clear cutting must have one red (heartwood) face. When sorted for colour redgum (majority heartwood) is much more limited in availability. Lumber is more likely to be available in thinner stock (4/4” & 5/4”) and may be more limited in export markets.
Gum has a fine uniform texture, but has irregular grain, usually interlocked, often with an attractive grain figure. The sap of gum tends to be wide and is white to light pink in colour, whereas the heartwood is reddish brown, typically with dark streaks.
The wood of gum is only moderately hard to soft, stiff and heavy, but has low steam bending classification. The wood is close grained.
Main uses are cabinet making, furniture and furniture parts, doors, internal joinery and mouldings. Gum has been used and stained, as a substitute for walnut or mahogany.
American hackberry trees, are tolerant of a wide range of soils, so are quite widespread in the USA, growing in naturally regenerated forests mainly in the central and southern States, not to be confused with Mississippi hackberry (C. tenuifolia) that grows mainly near the Gulf coast. The trees of common hackberry can grow large, tall and straight with few lower branches for 70 feet yielding clear lumber.
FIA data shows U.S. hackberry growing stock is 138 million m3, 1.0% of total U.S. hardwood growing stock. Hackberry is growing 4.3 million m3 per year while the harvest is 1.2 million m3 per year. The net volume (after harvest) is increasing 3.1 million m3 each year. Hackberry growth rates are well above harvest rates in all significant producing states.
Hackberry is only available in very limited volumes of sawn lumber in export grades, and mostly as thinner material (4/4” & 5/4”) and produced mainly in the Southern USA. Veneer may also be available from specialist suppliers.
The wood of hackberry is similar to elm to which it is related, but although heavy is fairly soft and not very strong. The irregular coarse grain may be straight and sometimes interlocked, but it has a fine uniform texture. There is little difference between the sap and the heartwood which are yellowish grey to light brown in colour throughout.
The wood of hackberry is moderately hard and heavy with good bending strength, but low in compression. It has high shock resistance and good steam bending classification, but is low in stiffness.
Common hackberry is used for furniture and kitchen cabinets, internal joinery, doors and mouldings. It is also used as a substitute for ash.
The hickories are an important group and the trees grow naturally throughout the Eastern U.S., from north to south. They are split into two groups; the more important true hickories and hickories producing pecan nuts, the latter being an important fruit-bearing tree. Trees vary in size enormously.
FIA data shows U.S. hickory growing stock is 742.3 million m3, 4.7% of total U.S. hardwood growing stock. American hickory is growing 14.6 million m3 per year while the harvest is 5.9 million m3 per year. The net volume (after harvest) is increasing 8.6 million m3 each year. U.S. hickory growth exceeds harvest in all significant producing states with the exception of Louisiana.
Hickory sawn lumber is readily available in export grades, but sold unselected for colour and mixed. The NHLA FAS grade permits a minimum width of 4 inches (101.6mm). The lower NHLA grades (1 & 2 Common) can produce an attractive and fashionable rustic look. Lumber is mainly produced in thinner stock (4/4” & 5/4) although a limited amount of thicker material may be available.
The wood of hickory varies greatly in colour, grain pattern and appearance from this very diverse group. It is fine textured and the grain is usually straight but can be wavy or irregular. The sapwood is white and maybe tinged with brown, while the heartwood is pale to yellow brown to dark in colour. Deep purple mineral streaks are a natural characteristic. Bird pecks are also a common characteristic and neither is considered a defect.
The wood of hickories is rather coarse and varies from strong to less strong but is heavy and very hard. It has good bending strength, shock resistance and excellent steam bending properties.
Furniture, cabinetry, ladders, striking tool handles dowels and sporting goods. Traditionally used by wheelwrights and for making drumsticks. The hardwearing properties of hickory make it an excellent choice for flooring, especially in situations of high traffic use. Historically the first wooden golf club shafts were made from hickory, and NHLA lumber graders still use the traditional flexible hickory measuring stick.
American hard maple is a cold climate species, although trees can grow throughout the USA in mixed hardwood forests, but favour the more northern states. The species is quite different from other maples throughout the world. The trees often grow in dense stands on many types of soil and are also farmed for their famous maple syrup. Harvesting the trees is seasonal (autumn and winter).
FIA data shows U.S. hard maple growing stock is 953.7 million m3, 6.6% of total U.S. hardwood growing stock. American hard maple is growing 19.1 million m3 per year while the harvest is 10.2 million m3 per year. Net volume (after harvest) is increasing 8.8 million m3 each year. U.S. hard maple growth exceeds harvest in all major supplying states except Maine. In Maine maple harvests have been high relative to growth, mainly due to increased extraction for pulpwood and bioenergy supplies, and because maple-dominated hardwood forests are slowly being replaced by softwood forest types.
Hard maple is hard, as the name suggests, and is heavy with good strength properties. It has high resistance to abrasion and wear as well as good steam bending properties. Accordingly it is a preferred species for flooring, including sports floors, bowling alleys and worktops.
This sustainably managed wood from natural forests of North America, with excellent environmental credentials, is revered worldwide for its hardwearing property, delicate light colour and fine finish. It is highly suitable for all types of flooring, including high traffic areas such as public buildings, furniture, cabinet making and high-class joinery. It is widely used for table and work tops, mouldings, and kitchen cabinets.
American soft maples grow widely across the eastern USA in mixed hardwood forests with more red maple in the northeast and silver maple concentrated in the mid and southern states. The name can be misleading as soft maple is not technically very soft. There are a significant number of sub-species – all sold as soft maple. Several, including Pacific coast/big leaf maple (Acer macrophyllum), grow in the northwest USA, for which there are specific grading rules that apply.
FIA data shows U.S. soft maple growing stock is 1.62 billion m3, 11.1% of total U.S. hardwood growing stock. American soft maple is growing 36.4 million m3 per year while the harvest is 16.0 million m3 per year. The net volume (after harvest) is increasing 20.4 million m3 each year. U.S. soft maple growth exceeds harvest in all the main producing states.
Soft maple from the USA is widely available as sawn lumber in a range of sizes and grades, but rarely as veneer. The lumber is normally sold unselected for colour. West coast production is usually sold surfaced and graded from the better side, in a departure from standard NHLA Grading Rules.
Soft maple has good bending and crushing strength, but is low in stiffness and shock resistance. It is about 25% less hard than hard maple. Accordingly it is not recommended for flooring or work tops.
This highly sustainable, managed hardwood from natural forests of North America, with excellent environmental credentials, is considered where hardness and hardwearing properties may not be essential. It is used in furniture, cabinet making and joinery as well as doors, kitchen cabinets and for turning and mouldings.
White oak trees grow exclusively in North America and are widely distributed throughout most of the eastern United States in mixed hardwood forests. As with red oak there are many sub-species, all within the white oak classification, and together form the most common species group accounting for about 33% of the American hardwood resource. The trees are tall and easily identified by their rounded leaf form, turning brown in the fall. White oaks also grow from north to south; some high in the mountains and others on low land giving rise to different characteristics. Thus there are significant variations in white oaks depending on location, in particular between the slower grown northern and faster grown southern trees. As with red oaks, they are regarded as sustainable for both domestic andexport consumption.
FIA data shows U.S. white oak growing stock is 2.26 billion m3, 15.5% of total U.S. hardwood growing stock. American white oak is growing 40.1 million m3 per year while the harvest is 20.1 million m3 per year. The net volume (after harvest) is increasing 20.0 million m3 each year. U.S. white oak growth exceeds harvest in all major supplying states.
White oak from the USA is readily available as sawn lumber and veneer, in a wide range of grades and sizes. Due to lengthy drying times not all suppliers offer thicker lumber stock (10/4" & 12/4") but it is available in limited volumes. In the north the sapwood tends to be less than in the south where, due to the shorter growing season, the wood is grown faster with more open grain and texture. White oak may be sold on the basis of 'northern' and 'southern', but this may be an over-simplification of the differences according to growing location.
American white oaks have excellent overall strength properties relative to weight, making them a preferred hardwood species for structural applications. The wood is hard and relatively heavy with good bending strength and compression strength but lower in stiffness. Structural testing carried out in Europe confirms that the white oak has greater inherent fibre strength than European oak. It has excellent steam bending capability. Being hard, stable when dry and easy to finish and stain, it is highly popular for furniture and flooring, especially in export markets.
To find out more about the mechanical properties of white oak read the full structural guide.
This sustainably managed wood from natural forests of North America, with excellent environmental credentials, is a key species in many export markets. Its main uses are in furniture, flooring, doors, architectural joinery and mouldings and kitchen cabinets. It is also used in certain applications for construction, including structural glue-laminated beams, and other specialist applications.
Pecan trees grow naturally in the south eastern USA and principally in the Mississippi valley. It is an important fruit-bearing tree and varies in size enormously.
FIA data shows U.S. pecan growing stock is 46.8 million m3, 0.3% of total U.S. hardwood growing stock. American pecan is growing 931,000 m3 per year while the harvest is 355,000 m3 per year. The net volume (after harvest) is increasing 576,000 m3 each year. U.S. pecan growth considerably exceeds harvest in the four main producing states of Arkansas, Kansas, Louisiana, and Mississippi.
Pecan sawn lumber is available in export grades, but sold unselected for colour and mixed. The NHLA FAS grade permits a minimum width of 4 inches (101.6mm). The lower NHLA grades (1 & 2 Common) can produce an attractive and fashionable rustic look. Lumber is mainly produced in thinner stock (4/4” & 5/4) although a limited amount of thicker material may be available.
The wood of pecan varies greatly in colour, grain pattern and appearance from this very diverse group. It is coarsely textured and the grain is usually straight but can be wavy or irregular. The sapwood is white and maybe tinged with brown, while the heartwood is pale to yellow brown to dark in colour. Deep purple mineral streaks are a natural characteristic. Bird pecks are also a common characteristic and neither is considered a defect.
The wood of pecan is usually considered very strong with excellent stem bending classification, high crushing strength, high stiffness and very high shock resistance.
Furniture, cabinetry, ladder rungs, tool handles dowels and sporting goods. Particularly hockey sticks due to its flexibility.
American sassafras trees grow small in the north and tend to develop pockets around parent trees. They are distributed throughout the eastern, central and southern USA and as far west as eastern Texas in natural hardwood forests on all types of soil.
Forest Inventory Analysis (FIA) data shows U.S. sassafras growing stock is 45 million m3, only 0.3% of total U.S. hardwood growing stock. American sassafras is growing 527,000 m3 per year while the harvest is 480,000 m3 per year. The net volume (after harvest) is increasing 47,000 m3 each year.
Sassafras lumber from the USA is rarely available and only in limited volumes mainly from southern producers. Check with suppliers for grades available for export. Veneer may also available from specialist suppliers.
The heartwood of sassafras is pale to dark brown but often golden in colour. It is a soft light flexible wood. The grain may be interlocked, can be straight but is often wavy and can produce a highly attractive fiddleback pattern. The wood may have a coarse or fairly fine texture and the grain has an ash-like appearance and resembles chestnut.
Sassafras is medium in hardness and shock resistance, but low in stiffness. It is has good bending qualities and is easy to turn on the lathe.
American sassafras, growing in natural forests in the USA, is considered highly suitable for several aromatic uses including staves for buckets and some furniture.
American sycamore trees are generally huge, being one of the largest hardwood species in North America, growing throughout the eastern and central USA in natural hardwood forests. Several other American planes, as they are called, grow in California and Arizona but are not commercially significant.
FIA data shows sycamore growing stock in the U.S. (excluding California and Arizona) is 144.5 million m3, 1% of total U.S. hardwood growing stock. American sycamore is growing 4.00 million m3 per year while the harvest is 1.22 million m3 per year. The net volume (after harvest) is increasing 2.78 million m3 each year. U.S. sycamore growth exceeds harvest in all supplying states.
Sycamore lumber from the USA is available in limited volumes mainly from southern producers and more easily sourced as thinner stock (4/4" & 5/4"). Check with suppliers for grades available for export. Veneer is also available from specialist suppliers.
The wood of sycamore may display a variety of colours. The sap is white to light yellow in colour and the heartwood is light to dark brown. The wood of sycamore has a fine close texture and is interlocked. The grain is distinct with a characteristic fleck.
Sycamore is moderate in weight, hardness, stiffness and shock resistance. It is heavy and tough. It has good bending qualities and is easy to turn on the lathe.
American sycamore, growing in natural forests in the USA, is considered highly suitable for cabinetry and furniture. It is used for mouldings, internal joinery and veneered panels. Specialist uses include butcher blocks.
Tulipwood trees grow exclusively in North America and are widely distributed throughout most of the eastern United States in mixed hardwood forests. It is a single species and is not a poplar (Populus) being a Magnoliacae producing wood that is superior to the many poplar species. The trees are huge and identified by their tulip-like flowers giving rise to the name. Tulipwood grows from north to south and is one of the most sustainable hardwoods in the USA.
FIA data shows U.S. tulipwood growing stock is 1.12 billion m3, 7.7% of total U.S. hardwood growing stock. American tulipwood is growing 34.6 million m3 per year while the harvest is 12.8 million m3 per year. The net volume (after harvest) is increasing 21.8 million m3 each year. U.S. tulipwood growth exceeds harvest in all states.
Tulipwood from the USA is readily available as sawn lumber in a wide range of grades and thicknesses (4/4” through to 16/4”) due to its ease of drying. A relative knot free timber average lumber widths and lengths can be higher than other commercial species. Tulipwood is used in plywood production but with more limited availability as decorative veneer. The sapwood produces the often preferred whiter wood, as the heartwood usually exhibits strong colour variation. However the use of unsorted tulipwood displaying all its natural colour variation is on the increase, especially in Europe. Tulipwood is sold domestically, and sometimes referred to in export, as ‘poplar’ but should not be confused with European or Chinese poplar.
Tulipwood has less strong grain characteristic than species such as ash and oak, and is more like maple in character but darker in colour. However, there is a marked difference between the sapwood and heartwood of tulipwood. The sapwood is creamy white whereas the heartwood can vary from pale yellow or brown and even green to purple in extreme cases. The wood darkens with time on exposure to UV light and the green colour will turn brown. The wood of tulipwood is straight-grained with a medium to fine texture.
Tulipwood has extraordinary overall strength properties relative to weight, making it highly suitable for structural applications, such as glue-laminated beams and cross laminated timber (CLT). The wood has relative low density, with high bending, shock resistance, and stiffness values, but is lower in compression and hardness. The wood has medium steam-bending capability and is extremely stable when fully dry and not installed in humid conditions. It is easy to finish and stain, so is highly suitable for furniture and joinery.
To find out more about the mechanical properties of tulipwood read the full structural guide.
This sustainably managed wood from natural forests of North America, with excellent environmental credentials, is a key species in many export markets. Its main uses are in furniture, doors, panelling, architectural interior joinery and mouldings and kitchen cabinets. It is also used in certain applications for construction and in some specialist applications such as carving.
American walnut trees grow very widely across the eastern USA in mixed hardwood forests and on farms, concentrated in central states but spread from Texas to the eastern seaboard. The trees are one of the few hardwood species planted as well as occurring and regenerated naturally. They grow relatively tall and straight with few lower branches.
FIA data shows U.S. walnut growing stock is 137.8 million m3, 0.9% of total U.S. hardwood growing stock. American walnut is growing 4.8 million m3 per year while the harvest is 1.9 million m3 per year. The net volume (after harvest) is increasing 2.9 million m3 each year. U.S. walnut growth exceeds harvest in all major supplying states except Michigan.
Walnut from the USA is available as sawn lumber and as veneer. The lumber is generally sold un-steamed and unselected for colour. Specialist producers may offer steamed walnut intended to darken the sapwood and thus reduce the colour difference between heartwood and sapwood. Recent years have seen huge global demand for this species. NHLA Grading Rules are modified for walnut, allowing smaller specifications and smaller clear cuttings and sapwood is admitted without limit. Consultation with suppliers is recommended.
Walnut is tough, hard and of medium density. It has moderate bending and crushing strengths and is low in stiffness. It has good steam bending classification.
Walnut is considered one of the supreme species for high end furniture, cabinets, doors and interior joinery. It is used for flooring and panelling and it is widely used to contrast with other hardwoods.