The Spreckels Sugar Company “Factory #1” was the world’s largest sugar beet refinery when it opened in 1899 and one of the largest structures in California. The 3″x13″x20′ Joists are great for making exposed shelving, mantels, table tops and rustic bar tops. The 6″x13″x20-30′ beams can be used as exposed beams, mantels, and any other architectural elements you can dream up.