Jerry Lee has built and restored the wooden ladders used by the San Francisco Fire Department for over 28 years. A native San Franciscan, Jerry started his apprenticeship as a pattern-maker in Dogpatch 30 years ago, and retired to develop his pattern-making business in 2013. SFFD is the last Fire Department that uses custom built, handcrafted wooden ladders. City workers build and restore the 350 wooden ladders used by the San Francisco firefighters in Central Shops, located in the Bayview district of San Francisco. San Francisco has many high-voltage overhead wires. Wooden ladders are preferred because they don't conduct electricity. The largest wooden fire ladder is 50 feet, weighs 350 pounds and takes six firefighters to lift. Raising of the 50ft. wooden ladder, an art in and of itself, is done frequently as firefighters respond to many fire calls each day.