Selected Boards QS3 - 27mm

QS3 Selected Boards of white Oak sawn timber shows the following marks and character details:

- Sound knots less than 10 mm, permitted without any restrictions.
- Sound knots with a diameter between 10 and 70 mm, permitted where equivalent to one knot of less than 160 mm.
- Permitted with a reduction: one not intergrown or unsound knot less than 70 mm, one isolated knot less than 30% of the board width, ring shake, frost crack, bark pocket, unsound sapwood only if isolated, included sapwood, brown pith less than 25%, rot only if isolated, sapwood with holes.

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