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Hardwood lumber is abundantly grown in American forests, widely used throughout the home for flooring, cabinet, furniture, moulding and others.

Dozens of species provide plenty of color, grain and pattern. American hardwoods are the natural choice for environmentally conscious users. It is renewable, sustainable, plentiful, durable and easy to work with.

Technical Specifications:

Each species has its own appeal with its color, grain, texture and physical properties. For a particular application all the above characteristics are considered for selecting the species. Physical properties such as weight, hardness, modulus of rupture and elasticity, compressive strength and shrinkage become critical factors to determine whether a species will be ideal for flooring, furniture, cabinet or framing.


Technical Data Common Name: Alder
Scientific Name: Alnus rubra
Average Weight: 449 kg/m3
Specific Gravity: 0.41
Hardness: 2,649 N
Modulus of Rupture: 65.7 MPa
Modulus of Elasticity: 9,515 MPa
Compressive Strength: 41.1 MPa
Volumetric Shrinkage: 12.60%


Technical Data Common Name: Ash
Scientific Name: Fraxinus americana
Average Weight: 673 kg/m3
Specific Gravity: 0.60
Hardness: 5,871 N
Modulus of Rupture: 103.4 MPa
Modulus of Elasticity: 11,997 MPa
Compressive Strength: 51 MPa
Volumetric Shrinkage: 6.20%


Technical Data Common Name: Cherry
Scientific Name: Prunus serotina
Average Weight: 560 kg/m3
Specific Gravity: 0.50
Hardness: 4,230 N
Modulus of Rupture: 84.8 MPa
Modulus of Elasticity: 10,274 MPa
Compressive Strength: 49 MPa
Volumetric Shrinkage: 9.20%


Technical Data Common Name: Hard Maple
Scientific Name: Acer saccharum
Average Weight: 705kg/m3
Specific Gravity: 0.63
Hardness: 6,450 N
Modulus of Rupture: 108.9 MPa
Modulus of Elasticity: 12,618 MPa
Compressive Strength: 53.9 MPa
Volumetric Shrinkage: 14.70%


Technical Data Common Name: Soft Maple
Scientific Name: Acer rubrum
Average Weight: 609 kg/m3
Specific Gravity: 0.54
Hardness: 4,225 N
Modulus of Rupture: 92.4 MPa
Modulus of Elasticity: 9,998 MPa
Compressive Strength: 45.1 MPa
Volumetric Shrinkage: 10.50%


Technical Data Common Name: Red Oak
Scientific Name: Quercus rubra
Average Weight: 700 kg/m3
Specific Gravity: 0.63
Hardness: 5,730 N
Modulus of Rupture: 99.2 MPa
Modulus of Elasticity: 12,550 MPa
Compressive Strength: 46.8 MPa
Volumetric Shrinkage: 6.60%


Technical Data Common Name: White Oak
Scientific Name: Quercus spp.
Average Weight: 769 kg/m3
Specific Gravity: 0.68
Hardness: 6,050 N
Modulus of Rupture: 104.8 MPa
Modulus of Elasticity: 12,273 MPa
Compressive Strength: 44.9 MPa
Volumetric Shrinkage: 12.60%


Technical Data Common Name: Walnut
Scientific Name: Juglans nigra
Average Weight: 610 kg/m3
Specific Gravity: 0.55
Hardness: 4,490 N
Modulus of Rupture: 100.7 MPa
Modulus of Elasticity: 11,584 MPa
Compressive Strength: 52.3 MPa
Volumetric Shrinkage: 10.20%


Technical Data Common Name: Yellow Poplar
Scientific Name: Liriodendron tulipifera
Average Weight: 449 kg/m3
Specific Gravity: 0.42
Hardness: 2.402 N
Modulus of Rupture: 69.6 MPa
Modulus of Elasticity: 10,894 MPa
Compressive Strength: 38.2 MPa
Volumetric Shrinkage: 12.70%


Grading Rules per NHLA

(National Hardwood Lumber Association):

– Minimum board size – 6” and wider, 8’ and longer
– 83.3% to 100% clear wood both faces for FAS, 1F for one face

– Same as FAS/1F except board size, which is 4” and wider, 6’ and longer
– Generally shipped in combination with FAS/1F

Number 1 Common (#1C)
– Minimum board size – 3” and wider, 4’ and longer
– 66.7% to 83.3% clear wood both faces