WoodwoodHardwood

Oak

Ring-porous hardwood, dense and hard wearing. White oak is the traditional choice for barrels, boatbuilding and heavy furniture; red oak is more common in cabinetry and flooring.

Stock forms — Board section and side elevation, end grain showingannual ringsend graintwLside elevation
Oak — stock formsSymbols only — no stock sizes are published

Properties

Family
Wood
Category
wood
Species
Quercus spp.
Density
0.75 g/cm³ · 750 kg/m³

Densityhow oak compares

Density of Oak — 0.75 g/cm³Oak0.75Water1.00Aluminium2.700369g/cm³
0.75 g/cm³ — 750 kg/m³Water 1.00 · Aluminium 2.70

Applicationswhere oak is normally specified

FurnitureFlooringCabinetryBarrelsBoatbuilding

Practical notes

  • Density is for air-dried stock at about 12% moisture content
  • Varies roughly ±10% with species, origin and growth conditions
  • Green timber can be 50% or more heavier than air-dried
  • White oak is notably denser than red oak — check which is specified

Lumber sizeswhat oak weighs in each nominal size

Lumber size database

Dressed sizes are the same for every species — a 2x4 is 1-1/2 x 3-1/2 in in oak as much as in spruce. What changes is the weight, and that is derived here from oak's density of 0.75 g/cm³.

Tools used on itmatched on the wood family, not on this page

All tools

Which tools work a material is a property of the family (Wood), not of the individual species — so this list is the same on every wood page, and changes when the tool data changes rather than when this paragraph does.

Used in these projectsbuilds whose bill of materials calls for it

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