Cement board is the choice of professionals for tile installation. It is tough
and withstands repeated exposure to water. There are many different brands (Durock, Miracle
Board) but the practical
application seems to be the same. It is constructed from cement with a nylon
mesh on either side.
Safety Suggestions and Tips
Durock edges are sharp
Be careful with utility knive
For pocket cuts, use masonry blade
Level of difficulty
Measure the opening that you have to fill. Using a square, transfer these
measurements to the cement board. Cement board seems fairly tough but is
actually fairly easy to cut with a utility knife.
Close up view of score
You must cut the mesh on one side. Score the cement
board with a razor knife until you cut the mesh.
Cutting backside after snapping
Second, snap the board away from you but do not allow the waste to hang free or
it might pull the mesh from the other side. Fold the snapped side over and,
using you razor knife, cut the mesh on the other
Trim if needed
Make sure that your cuts are as accurate
as possible. If you need to trim areas, you can simply
run the knife along the edge. Hold the knife so that
the blade bites slightly into the edge. This can be a tedious process so try to
get it right the first time.