Saturday hours are drive-up only. You can reach us at (800) 562-8761 ext. 8015. At Timberland Bank, we are proud to provide flexible financial solutions that help individuals, families and businesses achieve their goals. Whether you call, visit us online, or stop by our Chehalis, WA branch, we are committed to making banking and lending easier for you. Timberland Bank, Trusted Since 1915 - Member FDIC & Equal Housing Lender.