Robinstown Great Standing Stones, near New Ross County Wexford, seem to be one of the few 'four-poster' circles in Ireland. The tallest (NE) stone is around 1.7m tall. The western stones are both 1.6m and the shortest (SE) stone is just 1.1m. The rectangle that they form measures some 5 x 4m.
To the north are two other stones that make the site a bit confusing, but the four main stones are so obvious as to define the site as a 'four poster' with outliers.