Sugar pine
Pinus lambertiana
Sugar pine measures 380 lbf on the Janka scale, about 29% as hard as northern red oak.
- Of the 155 woods, only seven are softer and nine lose less volume on drying.
- Of the 13 pines in the handbook, none bends more easily or shrinks less across the face.
- 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
Sugar pineU.S. softwoods medianOther woods
Janka hardness
380 lbf1,690 N8th softest of 15531st of 37 U.S. softwoods240 lbf3,680 lbfBending strength
8,200 psi56.5 MPa11th weakest of 1554,300 psi29,900 psiDensity
0.340.36 at 12% MC13th lightest of 1550.250.96Stiffness
1.19 M psi8.2 GPa17th most flexible of 1550.54 M psi4.06 M psiShrinkage across the face
5.6%radial 2.9%18th lowest of 1553.5%12.7%Cupping tendency
1.9352nd highest of 1551.092.90
How much it moves
Its face shrinkage of 5.6% is in the lowest quarter of the list, with an ordinary T/R ratio of 1.93.
0.34 in.
off a 6-inch flatsawn board, green to oven-dry; quartersawn 0.17 in.
- Tangential
- 5.6%
- Radial
- 2.9%
- Volume
- 7.9%
- T/R ratio
- 1.93 (102nd most stable of 155)
End view, shrinkage drawn 3× life size.
Closest substitutes
- Incense-cedar
24% harder · 3% heavier · shrinks 0.4 points less across the face
- Western redcedar
8% softer · 9% lighter · shrinks 0.6 points less across the face
- Atlantic white-cedar
8% softer · 9% lighter · shrinks 0.2 points less across the face
Among the pines
13th hardest of 13, lbf; the neighbours either side are shown, the rest are on the pines page.
Laboratory values
Its most unusual laboratory figure is crushing strength along the grain: 7th lowest of the 154 woods with a published value.
| Property | Green | Dry, 12% MC | Change when dried | Metric, 12% MC |
|---|---|---|---|---|
| Compression parallel to grain | 2,460psi | 4,460psi | +81% | 30.8MPa |
| Work to maximum load | 5.40in-lbf/in³ | 5.50in-lbf/in³ | +2% | 37.9kJ/m³ |
| Side hardness | 270lbf | 380lbf | +41% | 1,690N |
| Modulus of rupture | 4,900psi | 8,200psi | +67% | 56.5MPa |
| Impact bending | 17in. | 18in. | +6% | 457mm |
| Modulus of elasticity | 1.03M psi | 1.19M psi | +16% | 8.20GPa |
| Compression perpendicular | 210psi | 500psi | +138% | 3.40MPa |
| Shear parallel to grain | 720psi | 1,130psi | +57% | 7.80MPa |
| Tension perpendicular | 270psi | 350psi | +30% | 2.40MPa |
Wood Handbook Table 5-3b, Table 4-3. Data & method · Guides