Post caps are decorative or protective covers placed on the tops of fence posts or deck posts. They serve multiple purposes, including enhancing the aesthetic appeal of a structure and preventing water damage by keeping moisture out of the post. Post caps come in various materials, such as wood, metal, or plastic, and can be found in different styles to match the overall design of a fence or deck. In addition to their decorative function, post caps can also help prolong the life of the posts by shielding them from the elements. By reducing exposure to rain, snow, and sunlight, post caps can minimize wear and tear, making them a practical addition to any outdoor project involving fences or decks.