Sheet of laminated plastic (PL4 Greenbank.)

Hello I'm after a sheet of laminated plastic in white color is possible which is equivalent to 150cm x 80cm x minimum thickness 3mm.

Preferably it would be a single piece but can come in multiple parts as long as they can be combined to work out to find above measurements.

It doesn't have to be in perfect condition just usable.

I'm in the PL48 area and can travel a certain distance to collect if needed.

Thank you.