90% material with widths from 120 mm and upwards and lengths from 2,100 mm and upwards, being well-distributed. The quality is of around 70% for 4 clean faces and about 30% for 3 clean faces. For the latter, small healthy knots and a low percentage of non-traversing Sapwood is tolerated at the end or on the side of the boards. For the longer boards, small knots up to 20 cm from the ends are tolerated, in each case in relation to the length of the board. Bark and insects are absolutely not to be present.

• 90% material with widths from 120 mm and upwards (10% from 100 to 110 mm) and lengths from 2,100 mmto 3,500 mm, being well-distributed.
• Quality: 100% 4 clean faces; no knots, heart, Sapwood or splits.

90% material with widths from 120 mm and upwards and lengths from 2,100 mm and upwards, being well-distributed. The boards may have healthy knots up to a maximum of 30 mm in diameter even on both sides but cannot have any spike or loose knots, bark, fissures or hearts; non-traversing interlocked Sapwood is tolerated.

90% material with widths from 120 mm and upwards and lengths from 2,100 mm and upwards, being well-distributed. There is no limit to the number of knots in the boards, which can even have spike nots and hearts on one side only. Non-traversing interlocked Sapwood is tolerated.

Material with widths from 100 mm forward and lengths from 1,000 to 2,000 mm. The quality is of around 70% for the 4 clean faces and 30% for the 3 clean faces. For the latter, small healthy knots and a low percentage of non-traversing Sapwood are tolerated. For the longer boards, small knots are also tolerated. Bark is absolutely not present and splits are not tolerated.