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cutting cement board - Cooler - 03-16-2020

I am installing a new bathtub surround.  I will be using cement board.  I will only need to make a few cuts so I do not want to invest heavily in new equipment.  I am hoping I will only need a special blade for one of my existing saws.

I have available:

Circular saw
Jig saw
Sawzall saw
4½" hand held grinder
Multi-tool
Carbide hand scoring knife (originally purchased to size formica)

Suggestions will prove helpful.


RE: cutting cement board - Willyou - 03-16-2020

I've only done it a few times. As I recall, all it required was to simply score it with a common utility knife and then snap it off. Scoring on both sides might result in a cleaner break. A little clean-up might be needed.


RE: cutting cement board - Roly - 03-16-2020

(03-16-2020, 09:18 AM)Cooler Wrote: I am installing a new bathtub surround.  I will be using cement board.  I will only need to make a few cuts so I do not want to invest heavily in new equipment.  I am hoping I will only need a special blade for one of my existing saws.

I have available:

Circular saw
Jig saw
Sawzall saw
4½" hand held grinder
Multi-tool
Carbide hand scoring knife (originally purchased to size formica)

Suggestions will prove helpful.

You can score it several times with just a utility knife and break like drywall or a carbide toothed wood blade in the circular saw will work but very dusty, outside only.
 Any of the tools you listed will work fine for a few cuts ,but will ruin the blade so don't use a good blade.   Roly


RE: cutting cement board - JTTHECLOCKMAN - 03-16-2020

Yes most carpenters will use standard utility knives. Any use I have used a carbide tipped utility knife blade. Just lasts a little longer.


RE: cutting cement board - Stwood_ - 03-16-2020

(03-16-2020, 09:34 AM)Willyou Wrote: I've only done it a few times. As I recall, all it required was to simply score it with a common utility knife and then snap it off. Scoring on both sides might result in a cleaner break. A little clean-up might be needed.

+1


RE: cutting cement board - lift mechanic - 03-16-2020

As said above just scribe on both sides and snap like drywall. They do make a special blade for cutting cement siding that works well, it has only 4 carbide teeth. Use only outside and with a dust mask, lots of silica dust.


RE: cutting cement board - Cooler - 03-16-2020

Thanks guys.  I bought a box of 100 utility knife blades a while back, so I am set for the straight cuts.

I guess I use a ceramic cutting blade for my 4½" angle grinder for cutting notches, etc.  Please correct me if I am wrong.


Cooler


RE: cutting cement board - Snipe Hunter - 03-16-2020

(03-16-2020, 02:14 PM)Cooler Wrote: Thanks guys.  I bought a box of 100 utility knife blades a while back, so I am set for the straight cuts.

I guess I use a ceramic cutting blade for my 4½" angle grinder for cutting notches, etc.  Please correct me if I am wrong.


Cooler

I lay it flat and lay a 4ft level on it. Stand on the level and score along the edge. Wear Shoes!


RE: cutting cement board - rschissler - 03-17-2020

Since you already have the angle grinder with a ceramic cutting blade, I would use that.  It will make a lot of dust, but will be much easier.


RE: cutting cement board - Cooler - 03-17-2020

(03-16-2020, 05:56 PM)Snipe Hunter Wrote: I lay it flat and lay a 4ft level on it. Stand on the level and score along the edge. Wear Shoes!
I always cut my stock barefoot and naked, especially since I was told to do this outdoors.
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