- 4 mm ultra-thick hardwood top layer. Can be sanded up to 4 times. -COSWICK uses only sawn lamellas for top layer. Sawn hardwood veneers have no internal checks that might cause face splits in lamella later on. Sawn hardwood lamellas have rich natural appearance of solid wood. - Middle layer is made of cross-laid interconnected solid birch bars. Thickness of the layer is 9 mm. Cork compensators are added every 6”. Cork compensators help to balance internal stress and increase plank dimensional stability. - Bottom layer is 3 mm solid birch lamella. |