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Eastern Black Walnut

December 6, 2013
Eastern-Black-Walnut

Distribution

Throughout eastern USA, but principal commercial region is the Central States. One of the few American species planted as well as naturally regenerated.

General Description

The sapwood of walnut is creamy white, while the heartwood is light brown to dark chocolate brown, occasionally with a purplish cast and darker streaks. Walnut can be supplied steamed, to darken sapwood or left unsteamed. The wood is generally straight grained, but sometimes with wavy or curly grain that produces an attractive and decorative figure.

Working Properties

Walnut works easily with hand and machine tools, and nails, screws and glues well. It holds paint and stain very well and can be polished to an exceptional finish. It dries slowly, and care is needed to avoid kilning degrade. Walnut has good dimensional stability.

Physical Properties

Walnut is a tough hard timber of medium density, with moderate bending and crushing strengths and low stiffness. It has a good steam bending classification.

  • Specific Gravity: 0.55 (12% M.C.)
  • Average Weight: 609 kg/m3 (12% M.C.)
  • Average Volumetric Shrinkage: 10.2% (Green to 6% M.C.)
  • Modulus of Elasticity: 11,584 MPa
  • Hardness: 4492 N

Durability

Rated as very resistant to heartwood decay, it is one of the most durable woods even under conditions favourable to decay. Sapwood liable to attack by powder post beetles.

Availability

USA: Reasonable availability with regional limitations.
Export: Reasonable availability in both lumber and veneer.

Main Uses

Furniture, cabinet making, architectural interiors, high class joinery, doors, flooring, and panelling. A favoured wood for using in contrast with lighter coloured timbers.

 

Source:

Ahec.org
American Hardwood Export Council

Ahec.org. “American Hardwood Export Council.” 2002. http://www.ahec.org/hardwoods/guide/index.html
(accessed 6 Dec 2013).


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Since 1980, Wooden Window has been constructing and restoring fine and custom-made wooden doors and windows for residences and commercial buildings throughout California. Whether a homeowner or building pro, you’ll appreciate our decades of experience and unique mix of craftsmanship and cutting-edge technology.

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Since 1980, Wooden Window has been restoring and constructing fine wooden doors and windows for residences and commercial buildings throughout California.

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