Garza Marfa wood tops are made of solid woods, no laminates. All wood species used by Garza Marfa will have unique marks, characteristics and colors specific to that natural piece of wood, these are not defects. All Garza Marfa wood is finished with Waterlox Modified Tung Oil, Marine Finish. For maintenance, wipe gently with a damp cloth. Do not use ammonia base cleaners. Wood is a natural product, and will expand and contract with changes in temperature. We do not recommend using wood products outdoors.