The builders chose this narrow shelf deliberately, orienting the tomb to face due west at 270 degrees, with an open view in that direction. That westward alignment is characteristic of wedge tombs as a type, the most numerous megalithic tomb form in Ireland, built during the later Neolithic and into the Bronze Age roughly between 2500 and 2000 BC. The form takes its name from its plan shape: wider and taller at the front, tapering towards the back, exactly as this example demonstrates, measuring nearly four metres across at the west end and narrowing to about two and a half metres at the east.

The structure is defined by two rows of side stones running along each long edge, a pair of endstones closing the rear, and what were originally four capstones laid across the top. Time and gravity have been unkind to the arrangement. The front capstone has toppled and now lies flat on the ground before the entrance. The middle two capstones have slid sideways off the inner north-side stones and lean at an angle that largely blocks the chamber. The rearmost capstone is also down. Despite all this displacement, the bones of the original design are still legible: on the north side, an outer row of three stones and an inner row of four, the two lines running parallel about half a metre apart. The south side is less well preserved, with several stones fallen from both rows. The tallest upright still standing is the front outer stone on the north side, at just over a metre high. Inside the tomb, a small subsidiary arrangement survives near the entrance, where a single low upright supports its own smaller capstone, a detail that hints at the careful internal structuring that once organised this space. The interior, where accessible beneath the leaning slabs, is scattered with loose stones.