I used a razor but it killed the blade in about two seconds. Is there a special saw for this stuff that won't make a huge mess?
It really doesn't matter how sharp the blade is. You're not actually cutting the board, you're scoring it. You can do that with a nail, if you had to. Don't bother pressing down too hard on the knife, it won't get you through the material any better. You just make three or four passes with medium pressure and snap it like sheetrock. As long as the blade hasn't gotten rounded at the tip, it will work just as good as a new one. Any type of saw is going to make a mess and isn't necessary.
This Site Might Help You. RE: Is there an easier way of cutting Wonder Board (cement board)? I used a razor but it killed the blade in about two seconds. Is there a special saw for this stuff that won't make a huge mess?
Use a utility knife and score it just like you would drywall. Once scored, snap it to break it apart. Even though the blade gets dull it does not require much to snap the cement board.
There is no easy way to cut cement board. It's just messy, I just bite the bullet and cut it with a masonary blade in a skill saw (I use my near death saws for that kind of work) that concrete dust is bad (were a mask). If your duing long rips, have a helper with a vaccum or compressor, suck or blow a clear line of site. That suck or blow comment will raise eyebrows. just leave it alone.
