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Calibrated French Oak QF4 Grade is a rustic grade of timber with large open knots up to 70mm in diameter with some splits and checks. The boards are kiln dried to 9-11% moisture content and carefully stored in our heated and acclimatised factory.
The QF4 grade quality adheres to the following criteria:
"Sound open knots up to 70mm in diameter permitted without any restrictions. Tolerance for two dead or unsound knots, one less than 35mm and the other less than 20mm. Wane permitted up to 10% of the width and 20% of the length. Excluded: rot, holes."
Please note: Calibrated is not the same as planed all round, it is fast pre-plane to bring the timber to a regular size and allows an extra 4mm in thickness for final planing and straightening.
- Additional Information
Manufacturer British Hardwoods Country of Origin France Timber Species European Oak Timber Grade Rustic Thickness 23mm Moisture Content Kiln Dried to 9-11% Moisture