It stands 1.8 metres tall, roughly rectangular in plan, and tapers slightly as it climbs to a flat, almost deliberate-looking top. Its long axis is oriented north-east to south-west, an alignment that recurs in standing stones across Ireland and may reflect astronomical or ritual significance, though the precise reasoning behind any individual example remains open to interpretation.

Standing stones are among the most common prehistoric monuments in the Irish landscape, yet individually they remain poorly understood. Most are thought to date from the Bronze Age, somewhere in the broad span between 2500 and 500 BC, though firm dating is rarely possible without associated finds or excavation. They occur singly, in pairs, and occasionally in rows, and their purposes are thought to have ranged from territorial markers to sites of ritual activity to astronomical alignments. The Banshagh stone, well-set and stable in its level field, measures 0.75 metres by 0.55 metres at its base, giving it a solid, planted quality rather than the leaning precariousness of more weathered examples. That it has survived in what appears to be its original position, upright and oriented, makes it a relatively intact representative of a monument type that has been quietly disappearing from Irish farmland for centuries.