From our outdoor bench factory’s practical experience, a well-built teak bench used outdoors with minimal maintenance has an average lifespan of about 10 to 15 years. Many pieces last longer—often 20 years or more—when the teak is responsibly sourced, the joints and hardware are sturdy, and the bench receives occasional basic care. Minimal maintenance does not mean no maintenance. For best results, rinse the bench several times a season, wash it with mild soap and water when needed, and use a soft brush on stubborn dirt. Inspect screws, bolts, and glides once or twice a year and tighten or replace them as necessary. Cover the bench or move it under shelter during long periods of harsh sun, heavy rain, snow, or freezing temperatures. Teak’s natural oils help it resist moisture, rot, and insects, and the wood can be left to weather to a silver-gray patina. Avoid pressure washing, harsh chemicals, and unnecessary sanding, because these can strip fibers and shorten the bench’s service life. Climate also matters: a bench on a dry, covered patio may last longer than one exposed to constant wet-dry cycles. With realistic expectations and simple routine care, a factory-made teak bench can remain a comfortable, durable outdoor seat for well over a decade.