The ideal frequency for treating or sealing your wood outdoor furniture isn't a one-size-fits-all answer, but a general guideline is to do it every 1 to 3 years. Several key factors will determine your specific schedule.
Climate and Weather Exposure: Furniture in harsh, sunny, or rainy climates will need more frequent care, potentially every year. In milder, more sheltered conditions, you might extend this to every two or three years.
Type of Wood: Dense, naturally durable woods like teak or cedar can often go longer between treatments. Less dense woods like pine require more vigilant and frequent sealing to prevent damage.
Type of Finish: The protective product you use also matters. Penetrating oils typically need reapplication every year, while some film-forming sealants like polyurethane can last 2-3 years, though they may peel over time.
Visual Inspection is Key: The most reliable method is to regularly inspect your furniture. Look for signs that it's thirsty for a new coat: the wood appears gray or faded, it absorbs water instead of beading it, or the surface feels rough and dry to the touch.
By understanding these factors, you can create a personalized maintenance schedule that keeps your wood furniture looking beautiful and protected for many seasons to come.