You can find box springs at major home improvement centers, specialized mattress retailers, and department stores both in-person and online. Major Retailers

: Provides a range of reliable mattress foundations and box springs.

: Offers a wide selection of budget-friendly and easy-assembly metal box springs, such as the Mainstays 9" Smart Box Spring Go to product viewer dialog for this item. for ~~~$127.00~~~ .

: Sells various profiles, including low-profile (5") and standard height (9") options from brands like Wayfair Sleep. Specialized Mattress Stores Box Springs - The Home Depot

: Features a large inventory of "best sellers" including heavy-duty metal frames from brands like Zinus and Amazon Basics.