Forever Foundation Store More Max Plus Size: Queen Two-In-One...bed support and foundation. Outstanding surface support and durability perfect for most of todays luxury mattresses. Replaces both the foundation and the steel frame. Six 8-inch legs (glides) total height 16-inches. More legs provide additional edge and weight support. 11 slats provides superior weight distribution. 14-inches of vertical, clear-span space under the mattress. Additional leg heights available. Headboard brackets included. Includes a fabric deck for added support, allows the mattress to breathe and filters unwanted allergens. Steel frame naturally resistant to bed bugs. 100% recyclable. Exempt from mattress recycle laws