Abstract: A corner piece for covering or capping a structure corner adjacent shake shingle siding characterized by a lineally variable contour includes a field modifiable trim strip for reflecting and accommodating the contour of the siding adjacent the structure corner. A method of siding a structure with the new corner piece and a siding system including the new corner piece and lineally variable contour siding panels are also disclosed.

Abstract: A corner piece includes a first group of vertically stacked walls and a second group of vertically stacked walls is provided. Each wall in the first and second groups includes an exterior face and an interior face and a first lateral edge and a second lateral edge opposite the first lateral edge. The first group and second groups meet at a common corner defined by the first lateral edges. The exterior faces collectively include an ornamental appearance containing a plurality of vertically stacked shingle impressions. The second lateral edges of the walls in at least one of the groups are staggered in width relative to the common corner, wherein the shingle impressions of the at least one group overlap at least a portion of the siding panels when the siding panels and the corner piece are fastened to the structure.