Larsen Lumber is your go to supplier for premium decking materials in Walnut Creek, CA, offering a wide variety of high quality options. Whether you??™re building a new deck or replacing an existing one, Larsen Lumber provides durable, eco friendly materials to suit any design or budget. Their extensive selection includes treated lumber, composite decking, and hardwoods, all designed to withstand the elements. With expert advice and personalized service, Larsen Lumber helps you create beautiful outdoor spaces that last.