Species data
Lyptus
Eucalyptus urograndis - a hardwood from plantation-grown in Brazil. Also sold as eucalyptus hybrid.
Properties at a glance
| Janka hardness | 1,420 lbf |
| Stiffness (MOE) | 2,049,000 psi |
| Specific gravity | 0.85 |
| Density | 53.0 lb/ft3 (850 kg/m3) |
| Weight per board foot | 4.42 lb |
| Shrinkage, green to oven-dry | 12.8% tangential / 8.2% radial |
| Indicative price | $7.00 per board foot (estimated) |
Values are at about 12% moisture content. Density is specific gravity times 62.4; a board foot is one twelfth of a cubic foot, so weight per board foot is that density divided by twelve. Anything marked estimated is our own figure, not a measured one.
How Lyptus compares
Measured against the 113 solid woods in this database: it is harder than 64% of them, heavier than 81%, and stiffer than 80%.
What that means in the shop
A 4/4 board 8 inches wide and 8 feet long is 5.33 board feet, so in Lyptus it weighs about 23.6 lb. A stack of ten is 236 lb - worth knowing before you load a rack or a car.
Against red oak, the trade's usual yardstick at 1,220 lbf, Lyptus is about 1.2x as hard and 1.21x as heavy.
Its shrinkage is 12.8% tangential against 8.2% radial, a ratio of 1.6 to 1. The wider that ratio, the more unevenly a flatsawn board moves across its width as humidity changes, and the more it wants to cup; anything near or above 2 to 1 is worth quartersawing or restraining for panels and wide tops. This one moves comparatively evenly.
Woods of similar hardness
Closest to Lyptus on hardness in this database: European Beech (1,450 lbf), Hard Maple (1,450 lbf), Willow Oak (1,460 lbf), Bur Oak (1,360 lbf). Similar hardness does not mean similar behaviour - check density and movement before substituting one for another.
Working with it
Workability. Easy overall but apt to scorch; stains, finishes and glues well; moves a lot in service
Durability. Moderately durable, though boring insects readily attack it
Typical uses. flooring, cabinetry, interior millwork, plywood, turning.
Related calculators
Sources
MOE, SG (12% MC), Janka and shrinkage from The Wood Database (cites USDA FPL Wood Handbook). CT/CR omitted: lyptus is not listed in the FPL/Hoadley dimensional change coefficient table. Uses, region, durability and workability summarized from The Wood Database. Price indicative.
These calculators are for planning and estimation. Engineering results (shelf sag, wood movement) use published average material properties; real boards vary by grade, grain, moisture and defects. Verify load-bearing designs with a professional.