Compressed Fibre Cement Flooring

jimc · #1 8th Nov 2004, 02:06 PM

Has anyone played around with compressed fibre cement floor sheeting?
I understand to cut it needs a circular saw/angle grinder with a diamond blade but how would I put a 95mm circular hole in the middle of it?

I am doing my bathroom and have to replace the old floor....been too wet for too long and its turned to wet mushy baltic pine compost.

johnmc · #2 8th Nov 2004, 02:39 PM

This is my favourite way to cut the hole:

using a masonry bit, progressively drill holes round the inside of your marked circle - the holes should be fairly closely spaced. Once round, tap out the waste and clean up the edges with a half-round file.

Tip: when drilling the sheet, make sure you have a block of waste wood under to prevent tearout.

johnc · #3 8th Nov 2004, 09:32 PM

Hi Jim,

If you go to the tile section of your local hardware store you can pick up a cheap hole saw designed for ceramic tiles. Basically just a pilot drill with a cutter bar adjustable to the arc of your choice, a bit easier than multiple holes and cheaper than a proper hole saw.

Regards John

seriph1 · #4 8th Nov 2004, 11:47 PM

I have cut holes in cement sheet for years using a jigsaw with a metal cutting blade