American beech
Fagus grandifolia
American beech measures 1,300 lbf on the Janka scale, 1% harder than northern red oak.
- Only overcup oak, shellbark hickory and karri shrink more across the face, and only nine woods lose more volume on drying.
- Ramin has exactly the same Janka figure.
U.S. hardwoodsU.S. softwoodsImported woodsNorthern red oak
Six measures
American beechU.S. hardwoods medianOther woods
Shrinkage across the face
11.9%radial 5.5%4th highest of 15534% above the U.S. hardwoods median3.5%12.7%Cupping tendency
2.1627th highest of 1551.092.90Janka hardness
1,300 lbf5,783 N49th hardest of 15517th of 53 U.S. hardwoods240 lbf3,680 lbfBending strength
14,900 psi102.7 MPa51st strongest of 1554,300 psi29,900 psiDensity
0.560.64 at 12% MC52nd heaviest of 1550.250.96Stiffness
1.72 M psi11.9 GPa70th stiffest of 1550.54 M psi4.06 M psi
How much it moves
Most of its movement runs along the rings (T/R 2.16): quartersawn, the same board would lose 0.33 in. instead of 0.71 in.
0.71 in.
off a 6-inch flatsawn board, green to oven-dry
- Tangential
- 11.9%
- Radial
- 5.5%
- Volume
- 17.2%
- T/R ratio
- 2.16 (129th most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- Swamp chestnut oak
5% softer · 7% heavier · shrinks 1.1 points less across the face
- Chestnut oak
13% softer · 2% heavier · shrinks 1.1 points less across the face
- White oak
5% harder · 7% heavier · shrinks 1.4 points less across the face
Woods of similar hardness
The eight nearest on the Janka scale, lbf.
Laboratory values
Its most unusual laboratory figure is tension across the grain: 2nd highest of the 73 woods with a published value.
| Property | Green | Dry, 12% MC | Change when dried | Metric, 12% MC |
|---|---|---|---|---|
| Tension perpendicular | 720psi | 1,010psi | +40% | 7.00MPa |
| Impact bending | 43in. | 41in. | −5% | 1,041mm |
| Shear parallel to grain | 1,290psi | 2,010psi | +56% | 13.9MPa |
| Compression perpendicular | 540psi | 1,010psi | +87% | 7.00MPa |
| Work to maximum load | 11.9in-lbf/in³ | 15.1in-lbf/in³ | +27% | 104.1kJ/m³ |
| Side hardness | 850lbf | 1,300lbf | +53% | 5,783N |
| Modulus of rupture | 8,600psi | 14,900psi | +73% | 102.7MPa |
| Compression parallel to grain | 3,550psi | 7,300psi | +106% | 50.3MPa |
| Modulus of elasticity | 1.38M psi | 1.72M psi | +25% | 11.9GPa |
Wood Handbook Table 5-3b, Table 4-3. Data & method · Guides