All species / Oregon White Oak

Oregon White Oak (Quercus garryana)

Furniture, flooring, cooperage and cabinets; the Pacific Northwest white oak.

The data

Stiffness (modulus of elasticity)1,090,000 psi

Specific gravity (12% MC)0.73

Janka hardness1,640 lbf

Average dried weight51.0 lb/ft³

Shrinkage, radial (green → dry)4.2%

Shrinkage, tangential9.0%

Shrinkage, volumetric13.2%

Movement classAverage movement

Stiffness & hardness: Wood Database (Table 5-3 class data). Shrinkage: Wood Database. Full sourcing notes are in our data documentation on the guides page — values print with their source so you can check us.

Shelf span guide — Oregon White Oak

Longest span that stays at or under the 0.02 in/ft long-term standard, floating ends, load spread evenly:

Shelf	15 lb/ft	25 lb/ft	35 lb/ft
3/4 in thick, 11 in deep	30 in	25 in	23 in
1 in thick, 11 in deep	40 in	34 in	30 in

Quick sag check — Oregon White Oak

Span (in)

Depth (in)

Thickness (in)

Total load (lb)

Full options — edging strips, fixed ends, centered loads — in the Shelf Sag Calculator.

Quick movement check — Oregon White Oak

Width across grain (in)

Cut

From MC (%)

To MC (%)

Full options in the Wood Movement Calculator.