What are crazy vaults?
Crazy vaults (also called crazy ribbing) are a late-Gothic vault type in which the ribs run across the vault surface in a seemingly random, irregular pattern. Unlike the orderly geometry of cross-rib or star vaults, the ribs of crazy vaults follow no recognisable geometric system.
Characteristics
- Irregular rib pattern — the ribs do not form a repeating geometric design
- Asymmetry — the vault surface is deliberately asymmetrical
- Decorative character — the ribs serve a primarily visual rather than structural purpose
- Exceptional craftsmanship — constructing crazy vaults required extraordinary skill
Applications
Crazy vaults are found exclusively in late-Gothic architecture:
- English Gothic — particularly in the Perpendicular style (15th–16th century)
- Church buildings — in ambulatories, side chapels and cloister walks
- German and Eastern European Gothic — churches in Bohemia and Saxony feature similar free rib patterns
- Castle chapels — smaller spaces lent themselves to experimental vault forms
Relation to other vaults
Crazy vaults can be seen as the ultimate development of the decorative rib vault. Where star vaults and net vaults still have a recognisable pattern, crazy vaults abandon all regularity — the ultimate display of the Gothic mason’s craft.
Related terms
- Vault
- Rib vault
- Cross vault
- Star vault
- Net vault
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