what do you cut hardi backer with?

[Nick71284]

I just got some hardi backer slabs and was wondering what the best way to cut it down is?
thanx
Nick

[brettodie]

a knife,razor blade ect score it deep and snap it :)

[Nick71284]

thanx!
Nick

[e. mort]

If you have access to a circular saw, then you can pick up a masonary saw blade for it for about $25.00. They work really well, and leave a very nice edge. Just don't forget your dust mask as that stuff is really nasty to inhale.

Eric

[eternalfrost]

"Just don't forget your dust mask as that stuff is really nasty to inhale."

answer = wetsaw :)

[somberbear]

wet saw will cause hardie backer to start to degrade and leak nasty shit... the snap method is my fav. i can get a pritty nice line, if i need it cleaner i just use a belt sander and bring it down and use patch compound for it. they have all you need to work it where you buy it.

[jiminyrootkit]

i ran it through a tablesaw......dirty damn proposition.
and i only made like, 3 cuts...
-f

[LTD]

treat it like sheetrock. I cover cut edges with alum-tape.keeps dust down, and looks clean.

[Nick71284]

Thanx for the suggestions everyone :)
trip

[Infinity glass]

ya def do it in the backyard not in the shop

[Kool]

ya def do it in the backyard not in the shop

HA! I found that out the hard way when it was pouring down rain a few weeks back and I just had to cut a piece right then. It had been 6 or 7 years since I used the old masonry blade and I had forgotten how much cancerous dust hardibacker likes to grace us with. It only takes a couple cuts to cover EVERYTHING in your shop!

[LTD]

Doesn't put out much dust if you scor it with a razor blade and then snap it. You don't need power tools.

[christopher]

f you have access to a circular saw, then you can pick up a masonary saw blade for it for about $25.00.

Masonary blade = $25
Razor blade = $.032 each
Having your hardibacker cut to the right size = priceless

[LTD]

f you have access to a circular saw, then you can pick up a masonary saw blade for it for about $25.00.

Masonary blade = $25
Razor blade = $.032 each
Having your hardibacker cut to the right size = priceless
Measure twice cut once. In my years doing dry wall I never used anything more complex than a razor knife to make even intricate cuts. A straight edge and good measruments are all it takes.