Origin
Eastern United States, Midwest (Iowa, Missouri)
Janka Hardness
1,010 lbf
Average Weight
3.17 lbs/bf
Color
Heartwood ranges from pale brown to dark chocolate brown with darker streaks, sometimes with grey, purple, or reddish cast; pale yellow-gray to nearly white sapwood; figured grain patterns including curl, crotch, and burl available.
Working Characteristics
- Easy to work with straight, regular grain
- irregular or figured grain may cause planer tearout
- glues and finishes well (staining rarely needed given walnut's natural color)
- responds well to steam bending.
Species Specifications
| Botanical Name | Juglans nigra |
|---|---|
| Other Names | Black walnut, American walnut |
| Origin | Eastern United States, Midwest (Iowa, Missouri) |
| Average Weight | 3.17 lbs/bf |
| Janka Hardness | 1,010 lbf |
| Pore Structure | semi-ring-porous |
| Grain / Texture | Usually straight grain, occasionally irregular; medium texture with moderate natural luster. |
| Rot Resistance | Rated very durable for decay resistance; susceptible to insect attack. |
Hardness Compared to Other Woods
See where Black walnut, American walnut falls on the Janka hardness scale compared to other familiar hardwoods.
Softer
Harder
Basswood
410
Cherry
950
Walnut
1010
Red Oak
1290
Hard Maple
1450
Hickory
1820
Purpleheart
2520
The Janka hardness rating measures resistance to denting and wear. Higher numbers generally indicate a harder, denser wood.
Technical Properties
| Shrinkage | Radial: 5.5%, Tangential: 7.8%, Volumetric: 12.8%, T/R Ratio: 1.4 |
|---|---|
| Modulus of Rupture | 14,600 lbf/in2 |
| Elastic Modulus | 1,680,000 lbf/in2 |
| Crushing Strength | 7,580 lbf/in2 |
Why Woodworkers Choose Capital Hardwood
Carefully Selected
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Real Woodworkers
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