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 excellent resistance to rot and weathering.
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Grain Pattern
Ring-porous with a straight grain pattern and prominent growth rings.
Color & Appearance
Heartwood is a golden brown to greenish-yellow, contrasting sharply with the pale yellowish-white sapwood.
Hardness (Janka)
1,700 lbf (Very Hard)
Durability & Decay Resistance
Very Durable with excellent resistance to rot and weathering.
Value & Age
4.00 to 8.00 USD 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 approximately 15 to 20 years based on growth ring count.
Common Uses
Fence posts, decking, boat building, and outdoor furniture.
Geographic Origin
Eastern North America, widely naturalized elsewhere.
Workability
Difficult to work due to extreme hardness, causing rapid dulling of cutting edges.
Finish Recommendations
Takes penetrating oils and varnishes well, though pre-boring is recommended for hardware.
Notable Features
Contains natural extractives that impart high decay resistance and a distinct greenish-yellow hue.
