It is built entirely without mortar, the drystone technique relying solely on the careful placement of one stone against another, and its entrance to the northwest is filled with stone rather than standing open. That detail alone gives it a slightly sealed, deliberate quality, as though it was closed up with some intention rather than simply abandoned.

The structure is modest in every dimension: roughly two and a half metres by one and eight-tenths of a metre internally, just 1.2 metres high, with walls nearly a metre thick. Those proportions place it well below the scale of anything meant for permanent habitation. Huts of this kind on the Iveragh Peninsula are generally associated with the early medieval period, when the landscape was dotted with enclosed settlements, field systems, and the infrastructure of a farming and pastoral society. The nearby Cathair Samháin is itself a stone-walled enclosure, a cathair being a circular or subcircular drystone ringfort, and small outbuildings or ancillary structures of exactly this kind were commonly attached to or clustered around such enclosures. Whether this hut served as a store, a shelter for livestock, or some other seasonal purpose is not recorded.

The detail of the stone-filled entrance is worth pausing over. It could reflect deliberate blocking at the end of the structure's use, or simply the gradual collapse of a once-functional doorway. At 0.6 metres wide the opening would have been narrow even when clear, suggesting a low, crouching entry rather than any kind of formal threshold. What survives is small enough to overlook entirely, but precise enough in its construction to suggest it was once part of a much more organised and inhabited stretch of hillside.