Welded grid mesh, or similar metal mesh metre square (Thorpe St Andrew NR7)

I'm looking fir a metre aquarelle of sturdy mesh to put u der a new compost bin which will sit on gravel or earth, to make it vermin proof from underneath. I've used chicken wire triple folded before, but that's not suitable for this location. Any offcuts I can secure together also welcome if not a whole sheet. I dont want to buy 10 sheets
which is all i can find! . Thanks if you can help.