Hickory/Pecan Species Information
Top portion is finished with water-base urethane; bottom with
oil-modified polyurethane.
Appearance
Color: Pecan heartwood is reddish brown with dark brown stripes;
sapwood is white or creamy white with pinkish tones. Hickory
heartwood is tan or reddish; sapwood is white to cream, with
fine brown lines.
Grain: Pecan is open, occasionally wavy or irregular. Hickory
is closed, with moderate definition; somewhat rough-textured.
Variations within species and grades: In both hickory and
pecan, there are often pronounced differentiation's in
color between
spring wood and summer wood. In pecan, sapwood is usually
graded higher than darker heartwood. Pecan and hickory
are traditionally
mixed by flooring mills.
Properties
Hardness (Janka): 1820; 41% harder than Northern red oak. Pecan
is slightly softer than true hickories.
Dimensional Stability: Pecan, average (change coefficient .00315;
15% more stable than red oak). Hickory, below average (change
coefficient .00411; 11% less stable than red oak).
Durability: Combination of strength, hardness, toughness and
stiffness found in no other commercial wood; exceedingly high
in shock resistance.
Workability
Sawing/Machining: Hickory species’ density makes it difficult
to season, machine and work with hand tools.
Sanding: Difficult to sand because of density, and because light
color makes sander marks show more than on darker woods.
Nailing: Good holding ability; prone to splitting.
Finishing: No known problems
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