Where to get hard plastic sheet black/white

[unwashed potato!]

Thought this was would be something wickes or bnq sold but unfortunately they only sell clear aryclic sheets.

Have found some on amazon, but at £45 seems expensive to me. Just need 750mm by 500mm by 3mm thick so nothing much. I can cut to size so as long as its over that I'm sorted

Any suggestions where I can try find some? Preferably a store I can go tomorrow to pick up.

Thanks

 

[unwashed potato!]

Thanks. I've had a look online and found about that same price, just not delivered until mid next week and was hoping to get this sorted by the weekend.

It's just to make a easy to wipe area in case of chemical spills. A tank will be screwed down onto a thick wood base, which sometimes drips stuff, and rather than absorb into the wood, would prefer a plastic sheet between to protect and make an area that can be wipe cleaned, plus it will look much tidier too