Ocote pine
Pinus oocarpa
Ocote pine measures 910 lbf on the Janka scale, 29% softer than northern red oak.
- Only seven woods sit further below the density–hardness trend: a specific gravity of 0.55 would point to about 1,290 lbf.
- Of the 13 pines in the handbook, none is stiffer.
- Paper birch has exactly the same Janka figure.
U.S. hardwoodsU.S. softwoodsImported woodsNorthern red oak
Six measures
Ocote pineImported woods medianOther woods
Stiffness
2.25 M psi15.5 GPa23rd stiffest of 1550.54 M psi4.06 M psiCupping tendency
1.6348th lowest of 1551.092.90Bending strength
14,900 psi102.7 MPa51st strongest of 1554,300 psi29,900 psiDensity
0.5560th heaviest of 1550.250.96Shrinkage across the face
7.5%radial 4.6%65th lowest of 1553.5%12.7%Janka hardness
910 lbf4,048 N76th softest of 15546th of 65 imported woods; 30% below the imported woods median240 lbf3,680 lbf
How much it moves
Both its face shrinkage (7.5%) and its T/R ratio (1.63) sit in the middle half of the list.
0.45 in.
off a 6-inch flatsawn board, green to oven-dry; quartersawn 0.28 in.
- Tangential
- 7.5%
- Radial
- 4.6%
- Volume
- 12.3%
- T/R ratio
- 1.63 (48th most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- Longleaf pine
4% softer · 2% lighter · same face shrinkage
- Douglas-fir (Coast)
22% softer · 18% lighter · shrinks 0.1 points more across the face
- Loblolly pine
24% softer · 14% lighter · shrinks 0.1 points less across the face
Among the pines
2nd 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 | 1.74M psi | 2.25M psi | +29% | 15.5GPa |
| Modulus of rupture | 8,000psi | 14,900psi | +86% | 102.7MPa |
| Compression parallel to grain | 3,690psi | 7,680psi | +108% | 53MPa |
| Shear parallel to grain | 1,040psi | 1,720psi | +65% | 11.9MPa |
| Work to maximum load | 6.90in-lbf/in³ | 10.9in-lbf/in³ | +58% | 75.2kJ/m³ |
| Side hardness | 580lbf | 910lbf | +57% | 4,048N |
Wood Handbook Table 5-5b, Table 4-4. Data & method · Guides