Semicircular arches

Semicircular arches, also known as Roman arches, are similar to segmented arches but cover a full 180 degrees of span.  The semicircular arch is a classic arch style, whereas the segmental and Jack arch styles — common in Capitol Hill — came into use later.  

While the semicircular arch is a great-looking arch, it requires a higher floor-to-ceiling space than what would otherwise be the same open size below the arch.

The picture below shows a beautiful Capitol Hill home with semicircular arches and keystone.

Click here to go to the list of all items on Capitol Hill Historic Masonry.