Openwork

Openwork or open-work is a term in art history, architecture and related fields for any technique that produces decoration by creating holes, piercings, or gaps that go right through a solid material such as metal, wood, stone, pottery, cloth, leather, or ivory. Such techniques have been very widely used in a great number of cultures.

The term is rather flexible, and used both for additive techniques that build up the design, as for example most large features in architecture, and those that take a plain material and make cuts or holes in it. Equally techniques such as casting using moulds create the whole design in a single stage, and are common in openwork. Though much openwork relies for its effect on the viewer seeing right through the object, some pieces place a different material behind the openwork as a background.

Techniques or styles that normally use openwork include all the family of lace and cutwork types in textiles, including broderie anglaise and many others. Fretwork in wood is used for various types of objects. There has always been great use of openwork in jewellery, not least to save on expensive materials and weight. For example, opus interrasile is a type of decoration used in Ancient Roman and Byzantine jewellery, piercing thin strips of gold with punches. Other techniques used casting with moulds, or built up the design with wire or small strips of metal. Essentially flat objects are straightforward to cast using moulds of clay or other materials, and this technique was known in ancient China since before the Shang Dynasty of c. 1600 to 1046 BC. On a larger scale in metal, wrought iron and cast iron decoration more often than not has involved openwork.

Scythian metalwork, which was typically worn on the person, or at least carried about by wagon, uses openwork heavily, probably partly to save weight. Sukashibori (roughly translating to "see-through work") is the Japanese term covering a number of openwork techniques, which have been very popular in Japanese art.

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