Home>Discussions>BATHROOMS>Question about cutting backerboard
5 posts / 0 new
Last post
Question about cutting backerboard

I bought a sheet of cement "Hardibacker" board. The expert in the home improvement store told me that the way to cut it was to score the board with a utility knife until the board breaks. That worked, but after numerous passes with the utility knife and not getting a straight cut, it left me wondering if there is a better way.

Can this material be cut with a table saw or perhaps a circular saw with a rip fence placed along the line where I want to cut?

Re: Question about cutting backerboard

yes it can. go to the hardware and buy a diamond blade that will fit your saw, they will cost anywhere from 15 to 30 dollars depending on the quality of the blade. for doing this I would buy the cheapest. there won't be any advantage in buying the more expensive ones for what you are going to use it for.

Re: Question about cutting backerboard

or a hand-held grinder with diamond blade, wear a mask probably with a filter, silica dust is unhealthy.

Re: Question about cutting backerboard

You can score it with a utility knife and snap the board. Two good scores then snap like drywall. Don't try to cut through. Use a metal straight edge to get a clean snap line if needed.
Too much dust with a saw.

Re: Question about cutting backerboard

I used a caribided tipped knife which worked quickly without any mess. It is sold in the tile section of most hardwear stores and is inexpensive

Sponsored Stories

TV Listings

Find TV listings for This Old House and Ask This Old House in your area.