One World Trade Center, also known as The Freedom Tower, is the cornerstone of the World Trade Center. Completed in 2013, the 1,776 ft tall building includes 2.6 million square feet of office space, an observation deck, parking,  restaurants, and broadcasting facilities. CAS performed drywall, rough carpentry and acoustical ceiling installations for the Port Authority of New York and New Jersey and Construction Manager Tishman Construction.​