This high-tensile, fixed-knot fence is designed to securely contain large, strong animals like bison and bulls. The vertical stay wires are firmly secured to the line wires with an additional wire knot, making it extremely resistant to stretching and sagging from animal contact. This durability reduces the need for additional posts during installation. The spacing of the line wires can be adjusted to keep smaller animals in or out, with narrower spacing at the bottom and increasing towards the top for larger animals. This fence is a Class 3 galvanized coating that lasts up to 25 years and also meets ASTM A116 requirements.