To develop a gatepost capable of being built up at a site within a short period and having a stabilized high quality without being required for any worker having skilled technology.

The gatepost is formed by piling up a plurality of short columnar pieces exposing a brick-like member to the surface. The short columnar pieces exposing the brick-like member to the surface are manufactured at a plant, and since the gatepost can be constructed by piling up the pieces at the site, the gatepost can be piled up at the site within a short period, the worker having skilled technology is not required, and the gatepost having the stabilized high quality can be obtained.