Welded Wire Fencing Welded Wire Mesh Panels offer a convenient means to quickly partition/ barricade large areas with rigid fencing. High security fencing with 3"x1/2" spacing is common for secure areas like Mints, Treasuries. The mesh is easily anchored to structural posts/angles. Common sizes are 200x50mm ; 150x50mm ; 50x50mm to 100x100mm with 3mm to 5.5mm wires.