For more then 50 years, Sentinel Industries, Inc., has been supplying high-quality products at competitive prices to customers throughout the Midwestern and South United States. Incorporated in 1957, Sentinel was a pioneer in the industry and a leader in the call of industry standards. Today, we meet these standards by treating to a net retention of .40 CCA. Penetration and retention are assured by the use of a third-party testing lab. Sentinel is a licensed producer of Wolmanized® products. Sentinel is a long-time member of the Missouri Forest Products Association and the Arkansas Forest Products Association. Sentinel's straight forward, no-nonsense approach to the business assures our customers of the very finest products at value prices. Wood is an economical and renewable resource. However, when left untreated, it is subject to attack by insects, rot and decaying fungi. You can protect your wood project in a number of ways, but none ensures the long-term protection that pressure-treating offers.  For your next load of treated posts, call 800-874-1506, 870-297-3724 or fax 870-297-8820 for the nearest sales agent. We will be happy to provide current price quotes, availability and delivery schedules.