8-gauage welded wire mesh is welded to the internal diameter of the tubing, no sharp edges; All panel infills are 2"x4" Welded Mesh. Check your outside dog kennel frequently to ensure it remains dry and clean inside. Your pet should always be supervised when outdoors and brought indoors in bad weather. Before setting up the kennel, make sure the area is clear of plants or chemicals that might be dangerous to your pet. Visit aspca.org/apcc for a list of things to watch out for.