Incense-cedar
Calocedrus decurrens
Incense-cedar measures 470 lbf on the Janka scale, about 36% as hard as northern red oak.
- Of the 155 woods, only six bend more easily, seven lose less volume on drying and eight are weaker in bending.
- It is soft and steady at once, in the lowest quarter of the list for both hardness and shrinkage across the face.
U.S. hardwoodsU.S. softwoodsImported woodsNorthern red oak
Six measures
Incense-cedarU.S. softwoods medianOther woods
Stiffness
1.04 M psi7.2 GPa7th most flexible of 15531% below the U.S. softwoods median0.54 M psi4.06 M psiBending strength
8,000 psi55.2 MPa9th weakest of 1554,300 psi29,900 psiShrinkage across the face
5.2%radial 3.3%13th lowest of 15527% below the U.S. softwoods median3.5%12.7%Density
0.350.37 at 12% MC17th lightest of 1550.250.96Janka hardness
470 lbf2,091 N23rd softest of 15524th of 37 U.S. softwoods240 lbf3,680 lbfCupping tendency
1.5837th lowest of 1551.092.90
How much it moves
Little movement, and evenly split between the two directions: one of the steadiest woods in the tables.
0.31 in.
off a 6-inch flatsawn board, green to oven-dry; quartersawn 0.20 in.
- Tangential
- 5.2%
- Radial
- 3.3%
- Volume
- 7.7%
- T/R ratio
- 1.58 (37th most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- Sugar pine
19% softer · 3% lighter · shrinks 0.4 points more across the face
- Atlantic white-cedar
26% softer · 11% lighter · shrinks 0.2 points more across the face
- Redwood (young-growth)
11% softer · 3% lighter · shrinks 0.3 points less across the face
Woods of similar hardness
The eight nearest on the Janka scale, lbf.
Laboratory values
Its most unusual laboratory figure is shear strength: 6th lowest of the 154 woods with a published value.
| Property | Green | Dry, 12% MC | Change when dried | Metric, 12% MC |
|---|---|---|---|---|
| Shear parallel to grain | 830psi | 880psi | +6% | 6.10MPa |
| Work to maximum load | 6.40in-lbf/in³ | 5.40in-lbf/in³ | −16% | 37.2kJ/m³ |
| Modulus of elasticity | 0.84M psi | 1.04M psi | +24% | 7.17GPa |
| Impact bending | 17in. | 17in. | ±0% | 432mm |
| Modulus of rupture | 6,200psi | 8,000psi | +29% | 55.2MPa |
| Tension perpendicular | 280psi | 270psi | −4% | 1.90MPa |
| Compression parallel to grain | 3,150psi | 5,200psi | +65% | 35.9MPa |
| Side hardness | 390lbf | 470lbf | +21% | 2,091N |
| Compression perpendicular | 370psi | 590psi | +59% | 4.10MPa |
Wood Handbook Table 5-3b, Table 4-3. Data & method · Guides