Simon.T.B sells five and ten packs on amazon and ebay.I got the 10 pack.
Good quality.
Ive nearly got through them all now with making new floors and renovating old hives and nucs (thanks to Maqs
)
There also these folk
https://themeshcompany.com/
You can opt for aluminium ,galvanised or stainless steel.
You can also get the stuff on a big roll which works out insanely cheaper than small quantities of cut squares.
As Stevo says they are 460 square -you have to cut them to suit the individual
equipment.
You can borrow my tin snips but 200 miles of fuel would be getting near the cost of a pair of your own.
The old mesh is behind the shed waiting to be used for something else.....