Vulcraft is the United States' largest producer of steel joists and steel deck products. Current annual capacity of all seven plants in the production of steel joists and joist girders is more than 685,000 tons. Six of Nucor's Vulcraft facilities also produce steel deck. Plants that produce steel deck are located in South Carolina, Nebraska, Alabama, Texas, Indiana and New York. Current annual capacity of the six plants in the production of steel deck is approximately 430,000 tons.