On 10/10/2017 15:19, ss wrote:
Twinwall:

What best to use, if possible I dont want to buy as it is a one off job.
from a 2 metre sheet I want to cut 3 x2x2 foot squares.
Tools at hand:
Blunt tenon saw, angle grinder, normal saws, circular saw 48 tooth,
Multi tool, stanley knife,jig saw with various blades.

Power hacksaw blade, with a temporary handle made from duct tape.

http://www.ebay.co.uk/itm/like/37145...6856138&crdt=0

Stiffer and stronger than a normal hacksaw blade. Fine tooth panel saw
will work, the problem with a tenon saw is that you will have to
maintain a shallow angle to clear the spine.