Birch Square Edge Timber. Grade "A". Moisture Content 8-12% (+/- 2 %)
Grade "A" 3-4 sides without defects and knots. Maximum 50% of the boards in the package from the worst side can have no more than 1 healthy knot per 1 running meter of material with a maximum diameter of up to 20mm. Discoloration, false core, core line, mold, traces of drying rails, cracks, curvature, wane and the presence of boards sawn to size are not allowed. Length: 1,5 - 3 m with pace 300 or 500 mm. The prevailing length is 3 m. Width: 70-150 mm with any pace (the material can be cut with fixed widths 75;100;125;150 mm or other fixed widths) Thickness: 25 mm. Thickness tolerance: -0+2 mm Width tolerance: -0+2 mm