Tabebuia (ipe, roble, primavera)
Hardness among the 3 tabebuia (ipe, roble, primavera) here ranges from 660 lbf (Primavera) to 3,680 lbf (Ipe). The flattest-drying is Ipe; the stiffest is Ipe.
- Its hardest member is 5.6 times as hard as its softest, the widest spread of any of the 15 families on this site.
- It holds a record among all 155 woods: ipe is the hardest.
- None of the three has a T/R ratio above the median for all 155 woods (1.81).
- Its median hardness, 960 lbf, is 26% below the median for imported woods.
- 960 lbfmedian hardness
- 0.52median density
- 13,800 psimedian bending strength
- 6.1%median face shrinkage
Tabebuia (ipe, roble, primavera)Other 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 | IpeTabebuia spp. (lapacho group)SG 0.92 · 13.2% shrinkage | 3,680 | 0.92 | 25,400 | 13.2% |
| 2 | RobleTabebuia spp. (roble group)SG 0.52 · 9.5% shrinkage | 960 | 0.52 | 13,800 | 9.5% |
| 3 | PrimaveraTabebuia donnell-smithiiSG 0.40 · 9.1% shrinkage | 660 | 0.40 | 9,500 | 9.1% |
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