Summit, the Seattle Convention Center’s addition, nearly doubles the capacity of the Center by adding 573,770 square feet of event space including 62 meeting rooms, and a 58,000 square-foot column-free and divisible ballroom featuring 3,900 suspended planks of reclaimed wood. 248,450 square feet of exhibit space,140,700 square feet of naturally lit lobby space, and a 14,000 square foot outdoor Garden Terrace were also added. Covering 1.5 million square feet, Summit and the original Arch building, create a campus built to usher in the future of meetings and conventions.