Quality and the size: Staves of the following dimensions are produced: The length 90 and 95 cm with over-measure +3 cm Thickness 31 ± 1mm Heading have the length of 45-80 cm with the over-measure +3 cm according to the order According to the grain tightness the staves are divided into three sorts: selection < 2mm fine < 3 mm medium-fine < 5mm