In Classical architecture, what is the major structural component known as an entablature?

The major structural component known as an entablature is defined as a horizontal structure that is supported by columns. In classical architecture, the entablature sits atop the columns and typically consists of three main sections: the architrave, frieze, and cornice. Each of these sections has different roles and decorative elements, contributing to the overall aesthetic and structural integrity of the building.

The entablature serves as a crucial transition between the vertical columns and the horizontal elements of the roof, playing a significant role in both the function and visual cohesion of classical structures. It is not simply an ornamental feature; it has to bear the weight of the roof while providing an aesthetically pleasing design that aligns with the principles of classical architecture.