Doorus Demesne wedge tomb

The chamber, measuring 2.5 meters × 1.3 meters, is covered by an enormous roof-stone 2.4 meters in length, 2.1 meters in width and 30 cm in depth. A large quantity of cairn material, nearly 1 meter in depth, lies on top of the roof-stone. The roof-stone is supported by two large side-stones, one on each side, and an equally large back-stone at the north-east.

There is some evidence of a gallery in front of the north-west side-stone but none on the south-west side. The monument consists of a simple chamber with sides and back formed of single stones. Above the roofstone is built a stack of field stones.

A wedge tomb takes its name from the way the burial chamber narrows at one end, usually decreasing both in height and in width from west to east. An antechamber is separated from the burial area by a simple stone slab. Wedge tombs are one of the four categories of Irish megalithic tomb described by Seán Ó Nualláin and Rúaidhrí de Valera in their survey of 1961, the others being court cairns, portal dolmens and passage tombs.