It is not a ruin in any dramatic sense, more a structure that has quietly merged with the ground around it, which is partly by design. The kiln was built into a natural depression, with earthen scarps rising on either side to create a forecourt in front of the opening, a practical arrangement that would have allowed workers to tip limestone and fuel down into the kiln from above while sheltering the working face from wind.

Lime kilns like this one were once common features of the agricultural landscape across Ireland. The process involved burning limestone at high temperatures to produce quicklime, which farmers then spread across acidic soils to improve fertility, or used in the making of mortar. This example in Graig is built from random-rubble sandstone, the rough, unsorted stonework typical of functional rural structures, encasing a central core. Its north-facing front elevation measures 3.5 metres high and 5.4 metres wide, with a tall lintelled recess, a deep arched or beamed opening, running almost 3.75 metres back into the structure. Sloping slabs at the rear of that recess would have directed heat and material downward through the burn. The whole structure is substantial, suggesting it served more than a single farm's occasional needs.

The kiln stands on the eastern side of what is now a disused trackway or old stream bed, a detail that hints at how these structures were once positioned along routes where limestone could be brought in and the finished product carted away. The forecourt area, formed by those flanking earthen scarps, remains legible on the ground, giving a sense of how the space would have been used. The rear of the kiln is heavily overgrown, and the stone-lined funnel through which material was fed from above is only partially intact, but the front elevation survives in reasonable condition and gives a clear impression of the kiln's original scale.