It’s the same principle that allows you to use standard chicken wire as a RF ... 12.5 mm (approximately 1/2 inch). As luck would have it, steel “hardware cloth” with mesh sizes of 1/2 ...
Galvanized wire mesh or welded stainless ... including a 24-inch roll of 19-gauge galvanized steel hardware cloth for $9.98. There is also a 36-inch option available for the same product. If you are ...