Also called:
Q. robur, Q. pedunculata, Q. petraea, Q. sessiliflora, pedunculate oak, Q. robur, sessile oak, durmast oak, Q. petraea, chêne, Eiche, Stieleiche
Description
Depending on origin, the heartwood varies from light tan to biscuit or deep brown, with distinct alternating bands of earlywood and latewood. The grain is usually straight, but irregular or cross grain can occur. The texture is coarse, and rays and growth rings show an attractive figure. Fungal attack in a growing tree causes Brown oak.
Extra: Circular grain can be allowed, as well as single healthy knots, with a maximum of 8mm diameter. Natural color and grain fluctuations are allowed, however, Sapwood, Black knots of any size, rough or tangential grain, Storage marks, Surface area cracks, etc. are all NOT allowed.
Rustic: Healthy knots are allowed without restriction, Black knots until a 15mm diameter. Healthy Sapwood, Circular grain, rough and tangential grain, mis-coloration, light storage marks, and surface area cracks ARE possible. This basically how Oak grows in nature, without any “make-up”. Only wood pieces which are passing our technical quality control are produced and sent, so despite the possibility of knots and sapwood, the wood flooring itself is NOT of inferior quality. The difference is basically an aesthetic question.
Typical dry weight: 720kg/m3
Specific gravity: 0.72
The wood is fairly hard, heavy and dense, with high crushing and bending strength low stiffness and resistance to shock loads. It?s very good for steam-bending. Pre-boring is advised for nailing and screwing, and reduced planning angle for irregular or cross-grained stock. It can be darkened with ammonia fuming.
Durability: The heartwood is durable and highly resistant to preservatives. The sapwood is permeable, and vulnerable to powder-post and common furniture beetles.
Grows: Europe and parts of North Africa
Typical height: 18-30m
Trunk diameter: 1.2-1.8m