Backer board may refer to:
*
Cement board
A cement board is a combination of cement and reinforcing fibers formed into sheets, of varying thickness that are typically used as a tile backing board. Cement board can be nailed or screwed to wood or steel studs to create a substrate for ver ...
used as tile backer board (to support tiles)
* Cardboard used in the
conservation of comic books to keep pages flat
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