Anyone cut a composite sink?
Anyone cut a composite sink?
Author
Discussion

richatnort

Original Poster:

3,196 posts

152 months

Thursday 24th July 2025
quotequote all
In summary I need to cut the flange on a composite by 10mm and wondered if anyone had done it before?

I’m a little scared but I’ve not got any other options because all good under-mounted sinks are 460 wide and I need 440.

The flange is 30mm and only going to be adhered to the quartz worktop so I don’t need all that 30mm.

PhilboSE

5,672 posts

247 months

Thursday 24th July 2025
quotequote all
Not done it myself but options would seem to be (from least to most aggressive)
- handsaw
- jigsaw
- table saw
- circular saw
- angle grinder with ?? Blade

If it was me I’d try a hand saw (fine tooth, maybe fret or hacksaw) for a few strokes to see how it “bit”, and take it from there.

I recommend something like these in order to support the sink underneath.

tegwin

1,675 posts

227 months

Thursday 24th July 2025
quotequote all
Be incredibly careful with the dust - its not far off asbestos levels of unpleasant..

Ynox

1,748 posts

200 months

Thursday 24th July 2025
quotequote all
Wonder if a router with a guide edge is the way to go here.

Could the worktop company trim it for you?

ChocolateFrog

34,518 posts

194 months

Thursday 24th July 2025
quotequote all
Yeah the dust isn't nice. A decent track saw with the right blade should do it no problem

Chris Stott

18,137 posts

218 months

Thursday 24th July 2025
quotequote all
Ynox said:
Wonder if a router with a guide edge is the way to go here.

Could the worktop company trim it for you?
That would be my 1st port of call

Top level worktop company will be used to cutting all sorts of stuff… pop in and have a chat with them. Maybe they’ll do it for you with the CNC machine.