Mark Thacker designed a 85,320 square foot light manufacturing and storage warehouse addition to the west side of the existing Black Sheep, Inc. Building in Tyler.

The design of this building included drawings of the floor plan, interior column layout, and toilet room layout.  Other designs were made for an office, stairs, and for details at the building expansion joints and tie-ins.  This project also involved the redesign of the accessibility to the old building and the new addition.