The wire mesh panels we use to construct our enclosures are custom designed for use with cats and small dogs in mind. The 2" x 2" grid pattern is selected to offer the least obstructed views while still providing a safe environment for your cats to enjoy. We do not rely on the notation of "gauge" for our products. This is due to every wire manufacturer/application having varying standards for sizing. However, we can provide you dimensions of our wire strands.The wire strands on our panels have a diameter of about 3.3mm (0.13") before coating and 3.5mm (0.138") after powder coating.