MANASSAS, VA. — Regional grocer Giant Food has opened an 82,000-square-foot e-commerce fulfillment center in Manassas. The new facility allows Giant to expand its delivery service to 140 zip codes across Northern Virginia and support 200 new jobs. Giant is offering free delivery for orders made Tuesday through Thursday and for a $3.95 charge on the weekends, according to Gregg Dorazio, director of e-commerce at Giant. The grocer will continue to operate its other existing fulfillment center in Hanover, Md. Giant is headquartered in Landover, Md., and operates 165 supermarkets in Virginia, Maryland, Delaware and Washington, D.C., with approximately 20,000 associates.