Chain Link Fabric (also commonly known as wire or mesh) is formed by weaving a series of spirals together to make a diamond pattern that is available is a variety of sizes and gauges. The most common is a 2" Pattern (for pool fences a diamond size of less than 2" is required) with #9 gauge wire. Concrete Your concrete should be a gravel mix. It can be purchased at the same place you purchase your chain link fence posts. Concrete for fence posts typically comes in 40 and 60 pound bags. For fence post holes that are 2 feet deep use at least one 40 pound bag of concrete. Straining posts, or end posts, are used to take the strain of the wire, ensuring it does not sag following impact. These posts are found at the end of a fence, whenever there is a change of direction or ground level, or every 50 metres. While intermediate concrete posts merely support the wire, straining posts take the strain. Set the post into the hole and attach 2x4 braces to adjacent sides of the post. Step 4 Use a level to position the post perfectly vertical. Step 5 Fill the hole with Fast-Setting Concrete up to 3 to 4 inches below ground level. Step 6 Pour about a gallon of water per 50 lb bag into the hole and allow the water to saturate the concrete mix.