Fiber board. Often sold as sound board.
Rigid foam insulation.
Ceiling tile.
They all do better as bulletin boards with a coat of paint or
fabric.
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Keep the whole world singing . . . .
DanG (remove the sevens)
"William Hall" wrote in message
news
I need to make a bulletin board for our rec. center. Cork is out
of question. What can I substitute for it? It will be a pretty
large one, about 4'X 6'
Bill