This 4.5" low-profile foundation delivers durable, noise-free support for any mattress—without adding extra height to your sleep setup. Featuring a steel-reinforced Semi-Flex® performance grid and wood slats, it’s stronger and longer-lasting than traditional wood box springs. The non-skid top fabric helps keep your mattress in place while the clean, black fabric wrap gives it a finished look. Ideal for platform beds or anyone looking to lower their mattress height. No assembly required.