San Mateo has dock builders and services available. A dock is a place on the water for people to be on. It can be of various types, such as ferry dock, swimming dock, ore dock and others. They are designed according to their intended use. For country use, a dock is a wooden platform that stretches over water, with one end secured to the shore. This is used for small boats, for boarding and disembarking (or offloading). Dock builders design and build customized docks for clients. Pre-building a dock may also be available in San Mateo, where the major part of the construction is carried out in the factory, where better precision is possible. After this is done, the prefabricated dock is transported to the required place. Services may include repair of docks, concrete seawalls, vinyl seawalls, boatlifts, davits, retaining walls, rip-rap, erosion control, and so on. An engineering analysis may be done first to suggest necessary repairs.