Bur Oak
Quercus macrocarpa
Also known as: Burr Oak, Mossycup Oak, Savanna Oak
Bur Oak (Quercus macrocarpa) is a North American white oak valued for its durability and resistance to decay. The wood is light to medium brown with coarse, open grain similar to White Oak. Used for furniture, cabinetry, flooring, and cooperage. It thrives across the central plains and is one of the most cold-tolerant oaks.
Botanical Profile
Quercus macrocarpa is a large deciduous tree native to central and eastern North America, reaching 30–40 meters. It produces the largest acorns of any North American oak. Tolerant of drought and cold, it grows in savannas, prairies, and bottomlands.
Physical Properties
Heartwood light to medium brown; sapwood pale. Average dried density approximately 720 kg/m³ with Janka hardness of 1,360 lbf. Coarse texture with open, ring-porous structure. Straight grain typical; rays produce distinctive fleck when quarter-sawn.
Workshop Notes
Blunting Effect
Moderate – open grain can dull edges
Gluing Advice
Good with standard wood adhesives
Finishing
Good – open grain may need filler for smooth finish
Steam Bending
Good steam bending characteristics
Historical Context
Bur Oak has been used by Indigenous peoples and settlers for construction, fuel, and food (acorns). Its durability made it suitable for fence posts and barn timbers. Today it is used for fine furniture, flooring, and wine barrels alongside other white oaks.
Technical Specs
Light to medium brown heartwood with pale sapwood; similar to White Oak
Abundant across central North America