These circular enclosures, defined by one or more earthen banks and ditches, were the most common form of rural settlement in early medieval Ireland, built roughly between the fifth and twelfth centuries and used as farmsteads by families of varying social rank. Tens of thousands of them once marked the Irish landscape; several thousand survive in some form today. The one at Querrin is among them, though it keeps its details quietly to itself.

Raths of this kind were not defensive structures in any military sense, despite their banked enclosures. The earthworks served to define a household's territory, contain livestock, and signal status within the fine, the extended kin group that formed the basic unit of Gaelic society. The interior would typically have held a timber or wattle dwelling, ancillary structures, and perhaps a souterrain, an underground stone-lined passage used for storage or refuge. What remains above ground at Querrin today is a matter the site itself answers better than any document currently does, since detailed records for this particular monument have not yet been made publicly available.