What is Ajour (Openwork)?
Ajour (also written à jour) is a term from architecture and the decorative arts that describes a pierced, openwork pattern. In ajour work, the material — wood, stone, metal, or plaster — is worked so that openings are created that allow for visual transparency and the passage of light. The result is a decorative element with a fine, lace-like appearance.
The term comes from the French and means literally “to the day” — referring to daylight shining through the openings. Ajour has been used for centuries in Gothic architecture, where the finely worked window tracery (rose windows, bar tracery) are classic examples of ajour work in stone.
In woodworking, ajour is achieved through routing or sawing, cutting away material to create patterns. In metalwork, steel plates are pierced with decorative motifs. In plasterwork, ajour patterns are sometimes incorporated as decorative wall or ceiling treatments.
Applications
Ajour work is used in:
- Timber garden screens and privacy fences: with sawn patterns that provide privacy while still admitting light
- Stair balustrades and railings: with openwork balusters or panels
- Furniture: cabinets, sideboards, and chair backs with ajour motifs
- Facade decoration: ornamental elements on eaves, bay windows, or gable bargeboards
- Plasterwork: ceiling roses and cornice profiles with openwork motifs
As a DIY builder, ajour patterns in wood can be cut out with a jigsaw or plunge router, which is particularly well-suited for making decorative garden screens or ornamental panels.
Related Terms
- Openwork
- Tracery
- Balustrade
- Fretwork
- Decorative panel
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