The structure is modest by any measure: roughly 5.5 metres along its long axis and 3 metres wide, aligned northeast to southwest, with no corbelling, meaning the roof was not built from overlapping stone courses projecting inward, but was likely a simpler affair that has long since vanished. There is no obvious entrance, though the northeast wall shows noticeably less stone and greater collapse than the rest, which may indicate that the doorway once lay there and that stone has gradually tumbled inward across the threshold over time.

The trackway beside which the hut stands is part of a network of similar routes running along the southern and eastern slopes of Mount Leinster. Local folklore holds that these tracks were used to bring turf down off the mountain by horse and cart, and the hut's position makes most sense within that context. With no other structures recorded nearby, it seems to have served a solitary and practical function, perhaps a place where turf cutters could take shelter from the weather or store cut turf before it was carried away. Whether it was ever more than a seasonal working shelter is difficult to say. A hillwalker named Michael Monahan has suggested, drawing on local knowledge from the townland of Ballycrystal, that this may be the structure referred to in the area as "Brennan's", a name noted by Ó Murchú in 2016, though the connection remains informal rather than confirmed.

For anyone walking the ridge, the hut is easy to overlook; it sits west of the trackway and reads at first glance as little more than a low stone outline in the grass. The walls are in reasonably good condition given their exposed position, and the northeast end, where the possible entrance once was, is the most visibly disturbed section. The surrounding terrain is open and unforgiving in poor weather, which perhaps explains why even a structure this small would have been worth building at all.