Black Locust
Robinia pseudoacacia · Hardwood
AI-generated identification · may be incorrect- Type
- Hardwood
- Origin
- Eastern North America, widely naturalized elsewhere.
- Hardness
- 1,700 lbf (Very Hard)
- Durability
- Very Durable with exceptional resistance to rot and insects.
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Grain Pattern
Straight to irregular grain with a coarse, uneven texture.
Color & Appearance
Golden brown to dark greenish-brown heartwood with a contrasting pale yellowish-white sapwood.
Hardness (Janka)
1,700 lbf (Very Hard)
Durability & Decay Resistance
Very Durable with exceptional resistance to rot and insects.
Value & Age
$3 to $6 per board foot.
AI estimate for general guidance only — not a professional appraisal. Actual value depends on grade, dimensions, condition, and local market demand.
- Wood Age Estimate
- Estimated at 15 to 30 years based on small-diameter roundwood growth.
Common Uses
Fencing, decking, shipbuilding, and outdoor furniture.
Geographic Origin
Eastern North America, widely naturalized elsewhere.
Workability
Difficult to work with hand and machine tools due to extreme hardness, frequently dulling cutters.
Finish Recommendations
Penetrating oils or exterior sealers applied after surface prep.
Notable Features
High shock resistance and rich natural oils that provide weather resistance.
