Can you Mosaic on wood?

It is possible to mosaic on wood but there are some things to consider in terms of wood type and the intended end use. Wood can easily buckle, swell or warp when subjected to temperature changes or humidity, which can crack the grouting and cause the tiles to pop off. As such, select wood that is in good condition, sanded and sealed, or wood known to handle humidity well, and avoid using wood composites (layered and glued wood sheets). Any wood that has a mosaic on it should only be used indoors and preferably not placed in humid areas (such as the bathroom). If using wood, avoid any end use that could cause the mosaic item to get wet, such as drink coasters. Wood should never be used for outdoor mosaic.