Pavers, or paving stones, are flat units of brick, stone, or concrete, that fit together in a tight pattern to form a structure, such as a driveway, patio, or walkway. Pavers are a popular choice of materials for DIY landscaping home improvements because they can be purchased affordably at many home improvement stores, and laid down in a relatively simple fashion. When you’re laying pavers, it’s important to measure and prep your area precisely, to make sure that your end product is aesthetically pleasing and functional.