Based on current expert testing and user feedback, these are the standout low-cost options:
For most shoppers, , if you choose a modern metal "smart" box spring (like those from Zinus or Amazon Basics). These are generally more durable and quieter than cheap wood-and-wire versions. However, if you have a high-end memory foam or latex mattress, a "cheap" base with wide slat spacing can actually damage your mattress and void your warranty. Top-Rated Budget Picks (2026) buy cheap box spring
Standard box springs are 9 inches, while "low-profile" ones are 5 inches. Measure your current bed height to ensure your mattress doesn't end up too high. Based on current expert testing and user feedback,
Amazon Basics Smart Box Spring (~$80–$100). This all-steel foundation is highly rated for ease of assembly. Note that it has a weight limit of 350 lbs, making it better for solo sleepers or children rather than heavy couples. Top-Rated Budget Picks (2026) Standard box springs are
Many modern bed frames (platform beds) do not require a box spring at all, which could save you more money in the long run.
Buying a "cheap" box spring today often means choosing between a traditional coil foundation and a modern "smart" metal base. While you can find options for under $100, the "review" of this category is a mix of high value for some and long-term frustration for others.