Oak vs Maple: Hardness, Grain, Stain and Which to Buy

Sugar maple is harder than either common oak. The USDA Wood Handbook lists side hardness at 12% moisture content as 1,450 lbf for sugar maple, 1,360 lbf for white oak and 1,290 lbf for northern red oak. Bending strength runs the same way: modulus of rupture is 15,800 lbf per square inch for sugar maple, 15,200 for white oak and 14,300 for northern red oak.

The trap is the word maple. Soft maple - red maple in most of the trade - measures 950 lbf, well below both oaks, and silver maple lower still at 700 lbf. "Maple vs oak" only has an answer once you know which maple, so ask the seller for the species, not the trade name. Our pages on hard maple and soft maple keep them apart.

Oak is ring-porous: large earlywood vessels form a visible ring at the start of each growth increment, then the latewood turns dense and fibrous. That abrupt change is what gives oak its coarse, strongly striped figure and the long open pores you can feel with a fingernail across the face. Oak also carries broad rays, which flash as ray fleck on quartersawn white oak.

Maple is diffuse-porous: the vessels barely change in size or spacing across the ring, so the surface reads as fine and almost featureless, with growth rings showing as thin lines rather than open pores. If you can catch a fingernail in the grain, you are holding oak, not maple.

The pore structure decides the finish, which is where most disappointment starts. Oak's open earlywood ring soaks up pigment stain and exaggerates the stripe, so oak looks darker and more dramatic with almost any stain - that is a feature if you want it. The Wood Handbook also notes a related liability: red oaks have large numbers of radially oriented rays and easy flow through vessels, which makes them prone to adhesive overpenetration.

Maple's fine, even structure has nowhere for pigment to lodge, so pigment stains tend to sit unevenly and blotch, especially on figured boards. The usual workarounds are a washcoat or conditioner before staining, or a dye rather than a pigment. If you want a light, even, modern surface with a clear finish, maple gives it with no effort; oak resists staying pale because the pores hold whatever you put on them.

Shrinkage from green to ovendry, tangential direction, from the Wood Handbook: white oak 10.5%, sugar maple 9.9%, northern red oak 8.6%, red maple 8.2%. White oak moves the most of the four, which matters for a wide tabletop in a house with swinging humidity. Radial figures are roughly half, so quartersawn stock of either species is the calmer choice.

Outdoors the two separate sharply. The handbook groups the white oak species as resistant to heartwood decay, which is why white oak has a long record in boatbuilding and outdoor furniture. Red oaks are not in that group, and all maples are listed as slightly or nonresistant. If a project will get wet and you will not treat it, white oak is the only one of the three with a case.

• Floors: both are standard. Sugar maple is harder at 1,450 lbf and gives a pale, uniform surface; oak hides dents and scratches better because the grain is busy.
• Kitchen cabinets and painted work: maple, for the smooth closed surface that paints cleanly. Oak needs grain filler to paint flat.
• Furniture that will be stained dark: oak, which takes it evenly into the open pores.
• Anything that gets rained on: white oak, not red oak and not maple.
• Cutting boards and butcher block: hard maple is the traditional choice for its closed, even surface.
• Budget and availability: both are widely stocked across the eastern US, and prices move with grade and width rather than with the species alone.

Not sure which is on your bench already? Photograph the end grain and face with WoodLens and the app identifies the most likely species.