Fretwork, an interlaced decorative design that is either carved in low relief on a solid background, or cut out with a fretsaw, jigsaw or scrollsaw
The porch has a 4-centred arched door opening and a frieze with Greek fret carving.
Ancient designs include fretwork, a symbol for Quetzalcoatl, the scepter of Quetzalcoatl, related to Ursa Major, an “S” form called an ilhuitl and a cross with branches of equal length which represents the cardinal directions.