10-13-2004, 06:29 PM
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Deity
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Join Date: Jul 2004
Location: Saint Regis Falls, NY, USA.
Posts: 3,896
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On the underside of the cement board screws is two little ridges that cut a countersink in the cement board to make the head flush with the surface.
8 inch spacing is correct. Personally I'd go with 6 inch on centers.
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