The knots of Chateau are filled with a harmless ecological filler and sanded afterwords for a smooth finishMeasures:-Solid: From 10 to 22cm and thikness of 14mm and 20mm. Random lengths 80cm until 280cm-3 Layer 175x15/4-190x15/4-205x15/4. Random lengths from 1800 to 2400-2 Layer variation product range from 175 to 225. Thicknesses 15/4-18/4 and 20/5. Random lengths from 1200 to 2400