Once you build a fence it is inevitable that the weather is going to take its toll on it. Fence posts that were originally cut square allow rainwater to soak right into the wood resulting in expansion and splitting of the wood. By cutting the fence posts at a slight angle, the water drains right off rather than sitting and soaking into the wood.
Start by screwing a 1″ x 2″ cleat to the back of the fence post about 3″ from the top, then set your circular saw at 15-degree bevel and make a cut on the fence post. This will only cut partway through the post, so finish up the cut with a handsaw. Seal the fence post tops for added water protection at least once a year.
