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Question:

how do i cut cement (backer) board?

i am using cement board to cover a wood floor before laying tile. the last time i used it, i cut it with a circular saw (what a mess) dust everywhere. is there a better way??

Answer:

score it a few times with a razor knife then break it over the edge of something
May 11, 2017
if its backer board, u can cut it with a razor knife, if its Dur-rock( cement board) wet the area of the board first after marking the line with a pencil, and then cut , will cut down on the dust. hint: get a box or floor fan and point it so as to blow the dust away from u! lic. gen. contractor
May 11, 2017
sharp utility knife and a strait edge. Score a couple times and break. If the board contains fiberglass mesh, you'll have to cut from the opposite side after its broken and bent 90 degrees.
May 11, 2017
Sorry - a jig saw would also make a mess. THere might be some sort of scoring device. I say predetermine your cuts and cut outside with a carbide circ saw. WEAR A RESPIRATOR and eye protection.
May 11, 2017
Not that I know of. hate the stuff. It works well though. I had to use a skilsaw and score it then jump up and down on the discard piece til it broke. A real pain in the butt.
May 11, 2017

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