Abstract: A corner bracket having a base member and a first wall attachment portion that extends substantially perpendicular to the top side of the base member and a second wall attachment portion that extends substantially perpendicular to the top side of the base member, such that a first wall attachment surface of the first wall attachment portion is perpendicular to a second wall attachment surface of the second wall attachment portion. A central bracket member, an inner bracket member, and an outer bracket member each extend from the top side of the base member. The central bracket member is positioned substantially between at least a portion of the inner bracket member and the outer bracket member and a base member edge, two opposing central bracket member edges, an inner bracket member edge, and an outer bracket member edge are each aligned.

Abstract: A line block having a body; a first leg extending substantially perpendicular to a longitudinal axis of the body; a first leg quoin line groove extending from a front surface of the first leg; a first leg wall line groove extending from a bottom surface of the first leg; a second leg spaced apart from the first leg, wherein the second leg extends substantially perpendicular to a longitudinal axis of the body, wherein a corner pole receiving groove is defined between at least a portion of the body, the first leg, and the second leg; a second leg quoin line groove extending from a front surface of the body and a front surface of the second leg, along a portion of an inner wall surface of the second leg; and a second leg wall line groove extending from a right side surface of the second leg.