Brazilian rosewood
Dalbergia nigra
Brazilian rosewood measures 2,720 lbf on the Janka scale, 111% harder than northern red oak.
- Of the 155 woods, only seven shrink less across the face and eight are harder.
- It is harder than its weight suggests: overall, a specific gravity of 0.80 goes with about 2,470 lbf.
- It pairs hardness with little movement: harder than 95% of the woods, yet in the lowest quarter for shrinkage across the face.
U.S. hardwoodsU.S. softwoodsImported woodsNorthern red oak
Six measures
Brazilian rosewoodImported woods medianOther woods
Shrinkage across the face
4.6%radial 2.9%8th lowest of 15542% below the imported woods median3.5%12.7%Janka hardness
2,720 lbf12,099 N9th hardest of 1559th of 65 imported woods; 109% above the imported woods median240 lbf3,680 lbfDensity
0.8010th heaviest of 15531% above the imported woods median0.250.96Bending strength
19,000 psi131.0 MPa23rd strongest of 1554,300 psi29,900 psiCupping tendency
1.5939th lowest of 1551.092.90Stiffness
1.88 M psi13.0 GPa49th stiffest of 1550.54 M psi4.06 M psi
For its weight: stiffness-to-weight 2.35 (152nd of 155).
How much it moves
Little movement, and evenly split between the two directions: one of the steadiest woods in the tables.
0.28 in.
off a 6-inch flatsawn board, green to oven-dry; quartersawn 0.17 in.
- Tangential
- 4.6%
- Radial
- 2.9%
- Volume
- 8.5%
- T/R ratio
- 1.59 (39th most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- Indian rosewood
16% harder · 6% lighter · shrinks 1.2 points more across the face
- Purpleheart
32% softer · 16% lighter · shrinks 1.5 points more across the face
- Afrormosia
43% softer · 24% lighter · shrinks 1.8 points more across the face
Woods of similar hardness
The eight nearest on the Janka scale, lbf.
Laboratory values
| Property | Green | Dry, 12% MC | Change when dried | Metric, 12% MC |
|---|---|---|---|---|
| Side hardness | 2,440lbf | 2,720lbf | +11% | 12,099N |
| Shear parallel to grain | 2,360psi | 2,110psi | −11% | 14.5MPa |
| Modulus of rupture | 14,100psi | 19,000psi | +35% | 131MPa |
| Compression parallel to grain | 5,510psi | 9,600psi | +74% | 66.2MPa |
| Modulus of elasticity | 1.84M psi | 1.88M psi | +2% | 13.0GPa |
| Work to maximum load | 13.2in-lbf/in³ | not tested | — | — |
Wood Handbook Table 5-5b, Table 4-4. Data & method · Guides