Wood Flooring
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European Oak Grade Standard ( by Yorking Hardwood) | |||
Grade Defection |
AB | CD | DD |
Dead Kont | ≤10mm,Maximum 3,drop or crack not allowed | diameter≤50mm,when ≥20mm,To be filled fully with smoked oak knot branch,repair with putty,Putty area ≤20mm | daimeter ≤100mm, big konts,no more than 30% of the totol amount. |
Living Kont | ≤20,Maximum3 | allowed | allowed |
Sapwood | ≤10% of the panel width, to be colored same as surrounding area, no more than 10% of the totol amount , decentralized packed | ≤30% of the panel width,to be colored same as surrouding area, no more than 45% of the totol amount ,full-length and both sides sapwood not allowed , decentralized packed | full length sapwood not allowed |
Color variation | slightly allowed ,unnatural not allowed | allowed ,but obvious color varitaion not allowed | allowed ,but abvious color varitation not allowed |
Black line | ≤80*2MM ,Maximum 1 | allowed | allowed |
Stain | extremely slighty allowed | slighty allowed | slighty allowed |