Fan vault (Perpendicular Gothic architecture)

Characteristics and construction

In fan vaulting the structural elements known as ribs are shaped and spaced so that each follows the same curve, with identical radii and even intervals. The ribs typically spring from shafts or corbels and rise to form a conoid or semi‑conical surface. The spaces between ribs are often filled with elaborately carved stone panels or tracery. Although highly ornamental, the ribs also serve structural functions by channeling loads to supports below, similar to other forms of vault.

History and development

Fan vaulting emerged in England in the later medieval period. First examples appear in the mid‑14th century (around 1351) and the technique reached its height in the 15th and early 16th centuries. It evolved from earlier ribbed and lierne vaulting traditions and became a hallmark of the Perpendicular Gothic style, which emphasized vertical lines and elaborate stone ceilings.

Notable examples

• King's College Chapel, Cambridge — celebrated for its expansive and finely detailed late Gothic ceiling.
• Gloucester Cathedral — famous for its cloisters and choir with extensive fan vaulting.
• Henry VII's Chapel at Westminster Abbey — an example of highly ornamented fan vaulting in a royal context.

These examples show both the structural ingenuity and the aesthetic ambitions of medieval masons: fan vaults could span wide spaces while producing a unified ornamental ceiling plane.

Significance and distinctions: Fan vaulting is distinct from other ribbed vault types because of the regular, radiating geometry of its ribs. It remained largely English in origin and use, and was later revived and imitated during Gothic Revival restorations and new constructions. While visually intricate, fan vaults reflect a careful balance of engineering and decorative design that remains admired in architectural history.