Hickories
Hardness among the 4 hickories here ranges from 1,810 lbf (Shellbark hickory) to 2,140 lbf (Pignut hickory). The flattest-drying is Mockernut hickory; the stiffest is Pignut hickory.
- Its members sit close together: the hardest is only 1.18 times as hard as the softest, the narrowest spread of the 15 families on this site.
- Its median hardness, 1,925 lbf, is 66% above the median for U.S. hardwoods.
- None of the four has a T/R ratio above the median for all 155 woods (1.81).
- All four sit in the hardest quarter of the 155 woods, at 1,465 lbf or more.
- 1,925 lbfmedian hardness
- 0.64median density
- 19,650 psimedian bending strength
- 11.2%median face shrinkage
HickoriesOther 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 | Pignut hickoryCarya glabraSG 0.66 · 17.9% shrinkage | 2,140 | 0.66 | 20,100 | 17.9% |
| 2 | Mockernut hickoryCarya tomentosaSG 0.64 · 17.8% shrinkage | 1,970 | 0.64 | 19,200 | 17.8% |
| 3 | Shagbark hickoryCarya ovataSG 0.64 · 16.7% shrinkage | 1,880 | 0.64 | 20,200 | 16.7% |
| 4 | Shellbark hickoryCarya laciniosaSG 0.62 · 19.2% shrinkage | 1,810 | 0.62 | 18,100 | 19.2% |
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