So, you're planning an impromptu gathering and your outdoor bench cushions are looking a bit worse for wear. The plush, comfortable cushions from your living room are tempting to use outside just this once. But is it a good idea? The short answer is yes, but only as a very temporary solution and with clear understanding of the risks.
Indoor furniture cushions are simply not built to withstand the elements. Their fabrics lack the UV-resistant treatments and waterproof coatings found on outdoor-grade materials. Even a few hours of direct sunlight can cause fading, while a sudden drizzle can lead to moisture absorption, resulting in mildew, mold, and internal foam damage. The filling, often standard polyester fiber, will break down much faster when exposed to humidity.
If you must use them outdoors temporarily, follow these steps. First, check the weather forecast meticulously. Only proceed on a dry, overcast day with zero chance of rain. Second, minimize exposure. Bring the cushions out right before guests arrive and bring them back indoors immediately after. Never leave them outside overnight. For slightly longer use, consider covering them with waterproof tarps or specially designed outdoor cushion covers when not in use.
Ultimately, this is a stopgap measure. For repeated or longer-term use, investing in proper outdoor cushions is essential. They are engineered with solution-dyed acrylic fabrics and quick-dry foams to endure sun and rain. Using indoor cushions outside, even briefly, accelerates their wear and compromises the comfort and hygiene of your indoor furniture. Save your lovely living room cushions for their intended purpose and explore affordable outdoor options for your patio or garden benches.