Maples
Hardness among the 5 maples here ranges from 700 lbf (Silver maple) to 1,450 lbf (Sugar maple). The flattest-drying is Bigleaf maple; the stiffest is Sugar maple.
- Every one of the five has a T/R ratio above the median for all 155 woods (1.81), so flatsawn boards of this family tend to move unevenly.
- Its median hardness, 950 lbf, is 18% below the median for U.S. hardwoods.
- The largest step inside the family is the 270 lbf between sugar maple, at 1,450 lbf, and black maple, at 1,180 lbf.
- All five sit in the middle half of the 155 woods for hardness, between 565 lbf and 1,465 lbf.
- 950 lbfmedian hardness
- 0.49median density
- 13,300 psimedian bending strength
- 8.2%median face shrinkage
MaplesOther woodsNorthern red oak, the usual yardstick
Ranked by hardness
Hardest first. Density is specific gravity; shrinkage is volumetric, green to oven-dry.
| # | Wood | Janka, lbf | Density | Bending, psi | Shrinkage |
|---|---|---|---|---|---|
| 1 | Sugar mapleAcer saccharumSG 0.56 · 14.7% shrinkage | 1,450 | 0.56 | 15,800 | 14.7% |
| 2 | Black mapleAcer nigrumSG 0.52 · 14.0% shrinkage | 1,180 | 0.52 | 13,300 | 14.0% |
| 3 | Red mapleAcer rubrumSG 0.49 · 12.6% shrinkage | 950 | 0.49 | 13,400 | 12.6% |
| 4 | Bigleaf mapleAcer macrophyllumSG 0.44 · 11.6% shrinkage | 850 | 0.44 | 10,700 | 11.6% |
| 5 | Silver mapleAcer saccharinumSG 0.44 · 12.0% shrinkage | 700 | 0.44 | 8,900 | 12.0% |
Source: USDA Forest Products Laboratory, Wood Handbook (2010), Tables 4-3, 4-4, 5-3b and 5-5b. How we use the data · Compare or filter these woods · Guide: Hardwood vs softwood in numbers