Caribbean pine
Pinus caribaea
Caribbean pine measures 1,240 lbf on the Janka scale, 4% softer than northern red oak.
- Only four of the 155 woods have a T/R ratio closer to 1.
- Of the 13 pines in the handbook, none is harder or heavier, and none shrinks more across the face.
- Only one wood sits further below the density–hardness trend: a specific gravity of 0.68 would point to about 1,900 lbf.
- Swamp chestnut oak has exactly the same Janka figure.
U.S. hardwoodsU.S. softwoodsImported woodsNorthern red oak
Six measures
Caribbean pineImported woods medianOther woods
Cupping tendency
1.245th lowest of 15529% below the imported woods median1.092.90Density
0.6821st heaviest of 1550.250.96Stiffness
2.24 M psi15.4 GPa24th stiffest of 1550.54 M psi4.06 M psiBending strength
16,700 psi115.1 MPa40th strongest of 1554,300 psi29,900 psiJanka hardness
1,240 lbf5,516 N57th hardest of 15538th of 65 imported woods240 lbf3,680 lbfShrinkage across the face
7.8%radial 6.3%76th highest of 1553.5%12.7%
How much it moves
The two directions move almost alike (T/R 1.24), so flatsawn and quartersawn boards differ by only 0.09 in.
0.47 in.
off a 6-inch flatsawn board, green to oven-dry
- Tangential
- 7.8%
- Radial
- 6.3%
- Volume
- 12.9%
- T/R ratio
- 1.24 (5th most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- Longleaf pine
30% softer · 21% lighter · shrinks 0.3 points less across the face
- Ocote pine
27% softer · 19% lighter · shrinks 0.3 points less across the face
- Loblolly pine
44% softer · 31% lighter · shrinks 0.4 points less across the face
Among the pines
1st hardest of 13, lbf; the neighbours either side are shown, the rest are on the pines page.
Laboratory values
| Property | Green | Dry, 12% MC | Change when dried | Metric, 12% MC |
|---|---|---|---|---|
| Modulus of elasticity | 1.88M psi | 2.24M psi | +19% | 15.4GPa |
| Shear parallel to grain | 1,170psi | 2,090psi | +79% | 14.4MPa |
| Work to maximum load | 10.7in-lbf/in³ | 17.3in-lbf/in³ | +62% | 119.3kJ/m³ |
| Compression parallel to grain | 4,900psi | 8,540psi | +74% | 58.9MPa |
| Modulus of rupture | 11,200psi | 16,700psi | +49% | 115.1MPa |
| Side hardness | 980lbf | 1,240lbf | +27% | 5,516N |
Wood Handbook Table 5-5b, Table 4-4. Data & method · Guides