These bed slats will provide the support you need for most specialty sleep beds and several other types of mattresses. They will provide a firm foundation with the slat boards approximately 2.5" apart. They lay directly on your bed frame and are held together with a strapping material to keep the slats in position. Please measure the width of your bed prior to purchasing your slats. Allow 1/4" play on either side of the bed frame when measuring. If you don't see the size you need for your particular bed, please contact us and we will be happy to see if we can meet your specific request. **DISCLAIMER: We are not affiliated with any bed manufacturers**