Most likely black locust; alternatives include honey locust or heavily bark-included oak. — Robinia pseudoacacia (likely)

Most likely black locust; alternatives include honey locust or heavily bark-included oak.

Robinia pseudoacacia (likely) · Hardwood (deciduous)

AI-generated identification · may be incorrect
Type
Hardwood (deciduous)
Origin
Eastern and central North America; widely planted and naturalized elsewhere.
Hardness
Approximately 1,700 lbf Janka — Hard.
Durability
Very Durable; heartwood is notably resistant to decay and insects, though bark itself is not a durability indicator.

Got a wood sample like this?

Identify any wood from a photo, free.

Identify wood

Grain Pattern

Visible surface is primarily bark, with coarse, irregular longitudinal fissures; the small exposed wood area appears straight-grained and pale.

Color & Appearance

Bark is dark gray to black and deeply ridged; exposed sapwood/wood is yellow-tan. Black locust heartwood commonly ages from greenish yellow to golden brown.

Hardness (Janka)

Approximately 1,700 lbf Janka — Hard.

Durability & Decay Resistance

Very Durable; heartwood is notably resistant to decay and insects, though bark itself is not a durability indicator.

Value & Age

Estimated Market ValueNot an official valuation

About $6–$15 per board foot for sound, kiln-dried black locust; bark-covered slabs vary substantially.

AI estimate for general guidance only — not a professional appraisal. Actual value depends on grade, dimensions, condition, and local market demand.

Wood Age Estimate
Cannot be determined from a photograph; apparent weathering is on the bark, not evidence of timber age.

Common Uses

Posts, outdoor furniture, flooring, turning, tool handles, and firewood; this piece is more suitable for bark-edge decorative work.

Geographic Origin

Eastern and central North America; widely planted and naturalized elsewhere.

Workability

Hard and somewhat abrasive; cuts and sands well with sharp tools but may cause tearout around irregular grain. Pre-drilling is advisable; gluing is generally good on clean wood.

Finish Recommendations

Remove loose bark, dry thoroughly, and seal exposed wood with penetrating oil or exterior spar finish; stabilize cracks before film finishes.

Notable Features

Very rugged furrowed bark, high density, and excellent outdoor durability; the image does not show enough clean end grain for confirmation.

Learn more about Most likely black locust; alternatives include honey locust or heavily bark-included oak. in the Wood Encyclopedia
Identified September 7, 2026