On Sat, 1 Aug 2020 13:27:07 +0100, Fredxx wrote:

On 01/08/2020 11:57:24, newshound wrote:
On 31/07/2020 20:10, Fredxx wrote:
What's the best way?

The original sheet was cut by saw, but is there an alternative way for
cutting out a small sheet 3ft x 2ft?

Do you mean fibreboard? 12mm will cut with a Stanley knife.

Straight or curved cuts?

Straight cuts.

I did try a Stanley knife and while it scored the surface I wasn't
confident it wouldn't be "pinched" as the blade got deeper.

This is the stuff:

https://www.wickes.co.uk/STS-Constru...-12mm/p/225437

Oh, 'cement fibreboard', not 'pin / notice board fibreboard' (what
many people might think if you just say 'fiberboard' and without any
context of the suggestion of usage).

I've used an old panel saw and jigsaw for curves.

Cheers, T i m