2″x4rectangular opening size black PVC coated welded hot dip galvanized steel. This means the intersection/joint is coated with zin galvanized after the fence roll is made. This is the best protection possible for corrosion. 2×4 opening size fencing is sutiable for containing or excluding most large animals including dogs and deer 14ga steel 12.5ga after coating that is hot dip galvanized after welding then black PVC coated. Engineered for longevity outdoors. 6ft x 100ft roll 6 feet wide by 100 feet long