ST. LOUIS--(BUSINESS WIRE)--IKEA, the world’s leading home furnishings retailer, today announced that steel framing has progressed far enough that installation of the iconic blue composite panels has begun on its future St. Louis store. Installation of the blue panels is a construction milestone that ensures the store will open Fall 2015, and reflects the unique architectural design for which IKEA stores are known worldwide. The 380,000 square-foot future IKEA St. Louis store, with 1,300 parkin