1. 
   Wonderboard
   A panel made out of concrete and fiberglass usually used as a ceramic tile backing material. Commonly used on bathtub decks.
   Found op http://www.rookinspections.com/glossary/glossaryw.shtml
   
   
2. 
   Wonderboard
   - A panel made out of concrete and fiberglass usually used as a ceramic tile backing material. Commonly used on bathtub decks.
   Found op http://www.homebuildingmanual.com/Glossary.htm
   
   

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