... grade 4.14/18/20/25/30/38/40mm thick Solid Walnut Wood PanelSpecification: 15/18/ 20/ 22/25/ 28/30/40mm x600mm ... -1200mmx1000mm-6000mmSpecies: Oak, Ash, Birch, Beech, Cherry, Zebrano, Sapelle, Walnut ect.1.Thickness/Width: 15,18, 20, 22, 25, 26 ... . A 40ft Ctnr can load about 33m3. Finger joint black walnut wood worktop