Laurel oak
Quercus laurifolia
Laurel oak measures 1,210 lbf on the Janka scale, 6% softer than northern red oak.
- Only karri and shellbark hickory lose more volume on drying, and only eastern white pine, subalpine fir and black oak have a higher T/R ratio.
- Black oak has exactly the same Janka figure.
U.S. hardwoodsU.S. softwoodsImported woodsNorthern red oak
Six measures
Laurel oakU.S. hardwoods medianOther woods
Cupping tendency
2.484th highest of 15532% above the U.S. hardwoods median1.092.90Shrinkage across the face
9.9%radial 4.0%23rd highest of 1553.5%12.7%Density
0.560.63 at 12% MC52nd heaviest of 1550.250.96Janka hardness
1,210 lbf5,382 N60th hardest of 15521st of 53 U.S. hardwoods240 lbf3,680 lbfBending strength
12,600 psi86.9 MPa70th weakest of 1554,300 psi29,900 psiStiffness
1.69 M psi11.7 GPa73rd stiffest of 1550.54 M psi4.06 M psi
For its weight: strength-to-weight 22,500 psi (136th of 155).
How much it moves
Most of its movement runs along the rings (T/R 2.48): quartersawn, the same board would lose 0.24 in. instead of 0.59 in.
0.59 in.
off a 6-inch flatsawn board, green to oven-dry
- Tangential
- 9.9%
- Radial
- 4.0%
- Volume
- 19.0%
- T/R ratio
- 2.48 (152nd most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- Pin oak
25% harder · 4% heavier · shrinks 0.4 points less across the face
- Black oak
Same hardness · same density · shrinks 1.2 points more across the face
- Black maple
2% softer · 7% lighter · shrinks 0.6 points less across the face
Among the oaks
11th hardest of 15, lbf; the neighbours either side are shown, the rest are on the oaks page.
Laboratory values
| Property | Green | Dry, 12% MC | Change when dried | Metric, 12% MC |
|---|---|---|---|---|
| Tension perpendicular | 770psi | 790psi | +3% | 5.40MPa |
| Compression perpendicular | 570psi | 1,060psi | +86% | 7.30MPa |
| Impact bending | 39in. | 39in. | ±0% | 991mm |
| Shear parallel to grain | 1,180psi | 1,830psi | +55% | 12.6MPa |
| Side hardness | 1,000lbf | 1,210lbf | +21% | 5,382N |
| Modulus of rupture | 7,900psi | 12,600psi | +59% | 86.9MPa |
| Modulus of elasticity | 1.39M psi | 1.69M psi | +22% | 11.7GPa |
| Compression parallel to grain | 3,170psi | 6,980psi | +120% | 48.1MPa |
| Work to maximum load | 11.2in-lbf/in³ | 11.8in-lbf/in³ | +5% | 81.4kJ/m³ |
Note on the data: the published volumetric shrinkage is unusually high relative to radial + tangential shrinkage.
Wood Handbook Table 5-3b, Table 4-3. Data & method · Guides