How Often Should I Replace My Boxspring?
Boxsprings act as support systems for your bed. They should be replaced every eight to 10 years on average, which is slightly longer than the recommended eight-year lifespan of mattresses. However, major defects like sagging or broken slats mean it's time to buy a new foundation sooner. Also, since mattresses must sit evenly on boxsprings in order for them to be properly supportive, the purchase of a new mattress may warrant a replacement boxspring, as well.