In 2004 Streckert Manufacturing, a family owned and operated company since 1940, was renamed as   STREK-O Doors. Located in Abbotsford, WI, STREK-O Doors specializes in producing quality architectural wood doors in   particleboard core, staved core, mineral core, and structural composite lumber core.   In addition to these door core offerings we now offer a line of stile & rail doors, lead-lined doors, door accessories, machining, finishing and labeling capabilities with both, UL & WHI.