Overview

The queue was a traditional French unit used to measure the volume of casks holding wine and spirits. The term comes from the French word for "tail" and was one of several regional, vessel‑based measures in pre‑metric France. It functioned both as a practical indicator of a cask's size and as a legal unit in trade and taxation.

Size and variations

By a common definition, one queue equaled three feuilettes. In modern metric terms this is often rendered as roughly 402 litres, but historical practice varied. Depending on locality and period a queue might be recorded as between about 360 and 411 litres. Because cask capacities depended on local standards and cooperage traditions, conversions to litres are approximate.

History and development

Queues belonged to a family of cask and bulk measures used across France and other wine‑producing regions. Before national standardization, units such as the queue were fixed by local custom and legal edict. During the late 18th and 19th centuries many of these traditional units were gradually superseded by metric measures as governments sought uniformity for commerce, taxation and science.

Uses and importance

The unit was used in commercial contracts, estate inventories, shipping records and tax assessments to describe quantities of liquid commodities. Merchants, coopers and vintners relied on such named cask sizes when pricing, transporting and storing beverages. Modern references to the queue usually appear in historical studies, archival documents and descriptions of old cellars.

  • The queue should not be confused with other cask‑based measures such as the muid or tonneau, which had distinct capacities.
  • Because of regional differences the metric equivalence is an approximation; see approximate conversion tables when comparing historical records to modern volumes.
  • References to the queue today are mainly of historical or technical interest rather than practical use in contemporary trade.