...dedicated to the science that unites aesthetic purity, structural integrity and functionality... 715.848.8677 Photo Courtesy of City of Chicago O’Hare Airport, Chicago, Illinois Guthrie Theater, Minneapolis, Minnesota Decades of design and industry experience Fit and function is critical Design for tolerances o Building o Installation o Construction o Assembly o Fabrication o Thermal Understand extruders capabilities Design for finish quality Evaluate structural integrity Design for energy performance WJH&A specializes in aluminum extrusion design. From decades of designing new extrusion dies, they have mastered the black art of die design. From fit and function to designing for assembly, their track record is one that they can be proud of and take pride in. In addition, WJH&A will value engineer profiles to satisfy the desired result and yet make it extruder friendly and cost effective.  Extrusion Design