Without a supportive structure, a mattress cannot perform to its fullest potential. Leggett & Platt manufactures a variety of steel wire mattress foundations and boxsprings that offer flexible support that's built to last.

In a 2016 survey of Retail Sales Associates (RSAs), we learned 82% believe steel wire foundations are stronger than all-wood. We also found that all-wood foundations are more likely to create noise issues by squeaking and creaking. Of the RSAs who dealt with a noise-related return, 85% of the foundations were made entirely of wood.

When you sell products made with Leggett & Platt's steel wire boxsprings and foundations, you're delivering an exceptional product that will last.

Semi-Flex® »

The strong steel foundation that's better than wood because it's proven strong and won't crack or squeak over time.

Semi-Flex® Fusion »

A layer of 1.5” Softech® coils adds extra shock absorption to our Semi-Flex foundation for unparalleled comfort and support.

Sigma®-Flex »

A high-quality modular spring system that offers proper load distribution and increased support.

True-Flex® »

Multiple rows of conforming modules work together to increase comfort and provide even support.

WebLok® »

This boxspring system features a simplistic, clip-less connection that's quick and easy to manufacture while remaining sturdy and supportive.