Lowered Arch

Symmetrical ARC (circular sector) that has its center below the spring line

Semicircular Arch

The center of the ARCH coincides with the spring line

Carpanel Arch

(Three-centred arch windows)

It is built with three circular sectors, 60º wide.

Bull’s-eye window

Circular window, is a type of window that has a round shape and resembles a porthole or a ship window.