MDO stands for medium density overlay, for those of you who need to know. What that really means is that plywood is made very smooth with a weather resistant overlay for attractive and durable exterior sign applications. Newer versions of MDO feature vinyl overlays - OmegaBoard™ - or aluminum overlays - LusterBoard™ which make these signs great for mid to long range applications, and are used for such diverse uses as commercial and residential real estate signs to building identification signs and more. Most readily available in 1/2" or 3/4".

View our MDO sign gallery.

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