... +/- 2% Dimension: 910x122x18mm,910x95x18 OAK ENGINEERED FLOORINGBrief introduction:Structure:multi-layer engineered floorTop layer: 0.6mm,2mm, ... 3mm,4mm,etc.Specification:910*910-127*8-15mm( as customer's request)Species: White Oak ... , beech,Red Oak,Cherry,Maple,Birch,Teak,Sapele, ... in my factory. engineered OAK wood flooring