Steamed Walnut Wood Guide 2026
Juglans nigra
Typically described as walnut with steamed sapwood for uniform color
Wood Appearance
Natural Grain
Finished Surface
Key Takeaways
- Density: 32 lbs/ft³
- Classification: Hardwood
- Origin: United States
- Common uses include Furniture, Cabinetry (even color)
Quick Facts
Representative reference values — natural wood varies by growing region, moisture content and individual board.
Durability, Stability & Workability
Texture: Coarse but even texture with usually straight grain.
Workability: Exceptional workability with all tool types.
Fastening: Pre-drilling recommended for screws and nails.
Finishing: Finishes exceptionally well and polishes to a high luster.
Color change: Steaming is used to darken and even out color between heartwood and sapwood.
Insect resistance: Highly resistant to decay and moderately resistant to insects.
Ratings and published values are representative reference figures. Natural wood varies with growing region, moisture content and individual boards — treat them as guidance, not guarantees.
Common Sizes & Availability
Typical market availability for Steamed Walnut. Lumberama is a sourcing marketplace — actual stock, widths and lengths vary by supplier. Request a quote to confirm what's available for your project.
| Thickness | Rough | Typical surfaced | Typical widths | Common lengths | |
|---|---|---|---|---|---|
| 4/4 | 1" | 13/16" (3/4" common) | Random widths are commonly supplied in hardwood lumber grades. | Random lengths typically range from 6 to 12 feet. | Request this size |
| 5/4 | 1-1/4" | 1-1/16" | Random widths are commonly supplied in hardwood lumber grades. | Random lengths typically range from 6 to 12 feet. | Request this size |
| 6/4 | 1-1/2" | 1-5/16" | Random widths are commonly supplied in hardwood lumber grades. | Random lengths typically range from 6 to 12 feet. | Request this size |
| 8/4 | 2" | 1-3/4" | Random widths are commonly supplied in hardwood lumber grades. | Random lengths typically range from 6 to 12 feet. | Request this size |
| 10/4 | 2-1/2" | 2-1/4" | Random widths are commonly supplied in hardwood lumber grades. | Random lengths typically range from 6 to 12 feet. | Request this size |
| 12/4 | 3" | 2-3/4" | Random widths are commonly supplied in hardwood lumber grades. | Random lengths typically range from 6 to 12 feet. | Request this size |
- 4/4rough 1"
- Surfaced
- 13/16" (3/4" common)
- Widths
- Random widths are commonly supplied in hardwood lumber grades.
- Lengths
- Random lengths typically range from 6 to 12 feet.
- 5/4rough 1-1/4"
- Surfaced
- 1-1/16"
- Widths
- Random widths are commonly supplied in hardwood lumber grades.
- Lengths
- Random lengths typically range from 6 to 12 feet.
- 6/4rough 1-1/2"
- Surfaced
- 1-5/16"
- Widths
- Random widths are commonly supplied in hardwood lumber grades.
- Lengths
- Random lengths typically range from 6 to 12 feet.
- 8/4rough 2"
- Surfaced
- 1-3/4"
- Widths
- Random widths are commonly supplied in hardwood lumber grades.
- Lengths
- Random lengths typically range from 6 to 12 feet.
- 10/4rough 2-1/2"
- Surfaced
- 2-1/4"
- Widths
- Random widths are commonly supplied in hardwood lumber grades.
- Lengths
- Random lengths typically range from 6 to 12 feet.
- 12/4rough 3"
- Surfaced
- 2-3/4"
- Widths
- Random widths are commonly supplied in hardwood lumber grades.
- Lengths
- Random lengths typically range from 6 to 12 feet.
Availability notes: Widely available through hardwood lumber distributors.
How lumber sizes are described
- Rough (4/4, 8/4…)
- Hardwood thickness in quarters of an inch as sawn, before surfacing. 4/4 = 1" rough.
- Surfaced (S2S/S4S)
- Thickness after planing. 4/4 typically finishes at 13/16" or 3/4".
- Nominal vs. actual
- Construction lumber is sold by nominal size; a 2x6 measures about 1-1/2" x 5-1/2".
- Random width / length
- Most hardwood is sold as it comes from the log — widths and lengths vary within a range rather than being fixed.
Color & Grain
Color: Uniform chocolate brown
Grain: Straight to figured
Common Uses
- Furniture
- Cabinetry (even color)
Key Characteristics
Also known as: Steamed Black Walnut
Availability: In Stock
Advantages
- Janka indentation hardness: 1,010 lbf
- Heartwood decay rating: Durable
- Sourced from United States
Considerations
- Pre-drilling recommended for fasteners
- Hardness does not establish decay resistance or structural design strength
Frequently Asked Questions
Alternatives to Consider
Species commonly specified for similar applications when Steamed Walnut is unavailable or over budget.
Related Species
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