Silver maple
Acer saccharinum
Silver maple measures 700 lbf on the Janka scale, 46% softer than northern red oak.
- Only six of the 155 woods have a higher T/R ratio.
- Among the 53 U.S. hardwoods, only bur oak bends more easily.
- Of the five maples in the handbook, none is softer.
- Cucumbertree has exactly the same Janka figure.
U.S. hardwoodsU.S. softwoodsImported woodsNorthern red oak
Six measures
Silver mapleU.S. hardwoods medianOther woods
Cupping tendency
2.407th highest of 15528% above the U.S. hardwoods median1.092.90Stiffness
1.14 M psi7.9 GPa12th most flexible of 15529% below the U.S. hardwoods median0.54 M psi4.06 M psiBending strength
8,900 psi61.4 MPa22nd weakest of 15532% below the U.S. hardwoods median4,300 psi29,900 psiDensity
0.440.47 at 12% MC50th lightest of 1550.250.96Shrinkage across the face
7.2%radial 3.0%54th lowest of 1553.5%12.7%Janka hardness
700 lbf3,114 N55th softest of 15544th of 53 U.S. hardwoods; 40% below the U.S. hardwoods median240 lbf3,680 lbf
For its weight: stiffness-to-weight 2.59 (147th of 155); strength-to-weight 20,227 psi (150th of 155).
How much it moves
Most of its movement runs along the rings (T/R 2.40): quartersawn, the same board would lose 0.18 in. instead of 0.43 in.
0.43 in.
off a 6-inch flatsawn board, green to oven-dry
- Tangential
- 7.2%
- Radial
- 3.0%
- Volume
- 12.0%
- T/R ratio
- 2.40 (147th most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- American chestnut
23% softer · 9% lighter · shrinks 0.5 points less across the face
- Bigleaf maple
21% harder · same density · shrinks 0.1 points less across the face
- Butternut
30% softer · 18% lighter · shrinks 0.8 points less across the face
Among the maples
5th hardest of 5, lbf.
Laboratory values
Its most unusual laboratory figure is stiffness (modulus of elasticity): 12th lowest of the 155 woods with a published value.
| Property | Green | Dry, 12% MC | Change when dried | Metric, 12% MC |
|---|---|---|---|---|
| Modulus of elasticity | 0.94M psi | 1.14M psi | +21% | 7.86GPa |
| Modulus of rupture | 5,800psi | 8,900psi | +53% | 61.4MPa |
| Compression parallel to grain | 2,490psi | 5,220psi | +110% | 36MPa |
| Work to maximum load | 11in-lbf/in³ | 8.30in-lbf/in³ | −25% | 57.2kJ/m³ |
| Impact bending | 29in. | 25in. | −14% | 635mm |
| Side hardness | 590lbf | 700lbf | +19% | 3,114N |
| Shear parallel to grain | 1,050psi | 1,480psi | +41% | 10.2MPa |
| Compression perpendicular | 370psi | 740psi | +100% | 5.10MPa |
| Tension perpendicular | 560psi | 500psi | −11% | 3.40MPa |
Wood Handbook Table 5-3b, Table 4-3. Data & method · Guides