Cutting firebricks, how would you do it?

sooby, Mar 28, 1:52am
Howdy guys,

Bought some new firebricks to replace the broken ones in our woodburner and unfortunately they are 5mm too big! The bricks are 230 x 115 x 25mm and it is the 230mm dimension I need adjusted.

What would you recommend to cut them down to size? Was thinking of calling a paving company & asking if a box of beer would be fair swap for them cutting 5 bricks down to size.

Any ideas?

budgel, Mar 28, 2:31am
I used an angle grinder with a cheapo diamond blade on mine.

sooby, Mar 28, 3:13am
cheers budgel - how long did it take you?

daryl14, Mar 28, 4:51am
Fire bricks will be pretty soft. Will take you 20 seconds.

survivalkiwi, Mar 28, 5:07am
Old hand saw.

ira78, Mar 28, 5:09am
I'd probably use a hacksaw.

sanders4, Mar 28, 5:23am
budgel has more brain cells than some posters it seems.

budgel, Mar 28, 9:49am
A few minutes.

aj.2., Mar 28, 10:01am
Masonry blade in skill saw, will do it, .

aj.2., Mar 28, 10:22am
Diamond blade needs to be water cooled to be best, and the angle grinder can buck a bit, not nice, Also water and power not a good mix. The proper diamond saws are a sealed power unit. OP , make sure you use a RCD plug in the power cord, and put it in at the power socket.

sooby, Mar 29, 12:33am
cheers guys - appreciate the ideas!

tintop, Feb 20, 3:49pm
You can get diamond blades that work dry that will mount on an angle grinder. As long as the piece you are cutting is secure, there will be no bucking.

Biggest hazard is noise and dust.