Welcome to Design Theory, Downtown LA’s premier retail furniture showroom and full-service interior design firm.  Here, our goal is to take you from concept to completion in an atmosphere that is professional and sensitive to your design needs.  Our company offers a wide range of design services from furniture procurement and fabrication to intricate detail drawings and specifications, while our showroom is host to over two hundred furniture lines.  We encourage you to allow our highly skilled and innovative design professionals help in designing your live/work spaces to be an expression of YOU.  The possibilities begin with Design Theory.