Yellow meranti
Shorea spp. (lauan-meranti group)
Yellow meranti measures 770 lbf on the Janka scale, 40% softer than northern red oak.
- Among the 65 imported woods, only andiroba has a higher T/R ratio.
- Drying barely changes its hardness: from 750 lbf green, it gains only 3% by 12% moisture, against a median of 31%.
- American sycamore has exactly the same Janka figure.
U.S. hardwoodsU.S. softwoodsImported woodsNorthern red oak
Six measures
Yellow merantiImported woods medianOther woods
Cupping tendency
2.3513th highest of 15535% above the imported woods median1.092.90Bending strength
11,400 psi78.6 MPa57th weakest of 15532% below the imported woods median4,300 psi29,900 psiDensity
0.4658th lightest of 1550.250.96Janka hardness
770 lbf3,425 N59th softest of 15552nd of 65 imported woods; 41% below the imported woods median240 lbf3,680 lbfStiffness
1.55 M psi10.7 GPa61st most flexible of 1550.54 M psi4.06 M psiShrinkage across the face
8.0%radial 3.4%68th highest of 1553.5%12.7%
How much it moves
Most of its movement runs along the rings (T/R 2.35): quartersawn, the same board would lose 0.20 in. instead of 0.48 in.
0.48 in.
off a 6-inch flatsawn board, green to oven-dry
- Tangential
- 8.0%
- Radial
- 3.4%
- Volume
- 10.4%
- T/R ratio
- 2.35 (143rd most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- Dark red meranti
1% harder · same density · shrinks 0.1 points less across the face
- Bigleaf maple
10% harder · 4% lighter · shrinks 0.9 points less across the face
- Black cherry
23% harder · 2% heavier · shrinks 0.9 points less across the face
Among the merantis
2nd hardest of 3, lbf.
Laboratory values
| Property | Green | Dry, 12% MC | Change when dried | Metric, 12% MC |
|---|---|---|---|---|
| Compression parallel to grain | 3,880psi | 5,900psi | +52% | 40.7MPa |
| Modulus of rupture | 8,000psi | 11,400psi | +42% | 78.6MPa |
| Side hardness | 750lbf | 770lbf | +3% | 3,425N |
| Modulus of elasticity | 1.30M psi | 1.55M psi | +19% | 10.7GPa |
| Work to maximum load | 8.10in-lbf/in³ | 10.1in-lbf/in³ | +25% | 69.6kJ/m³ |
| Shear parallel to grain | 1,030psi | 1,520psi | +48% | 10.5MPa |
Wood Handbook Table 5-5b, Table 4-4. Data & method · Guides