NEW STRIP Half Square Foundations in sizes ½” to 4” in ¼” increments! Triangulations 4.0 contains all of the great foundations found in the earlier version PLUS Strip Triangulations. Strip Triangulations has been developed to address the needs unique to piecing with pre-cut strips. When drafting the units, one of the angled points - a dog ear - has been eliminated, allowing the printed foundation units to properly fit the cut strips.