With two to thirteen layers of wood glued together it’s important that the wood is allowed to “breathe”. In humid environments it will break down over time if there is little air access. When we hang one of the maps in a public place we use standoffs around the frame and leave a 1/4″ gap for air to flow when the Plexiglas is used.

The glass also obscures the 3D effect somewhat and depending on the lighting in the room, it can also cause refracting of the light.