Killer Burger Preferred Sq. Footage: 2,500-3,200 s.f. 12-Month Anticipated Opening: 10-15 The burger chain plans bullish expansion in Oregon and Washington, as well as adding units in Denver, Salt Lake City, Boise, Idaho, and Reno, Nev., with 10 to 15 new locations planned per year for the next five years. Downtown, power center, street-front and More