Classic Brands" Instant Foundation is the perfect easy-to-assemble mattress foundation for your home. This box spring comes in a small box it is easy to assemble and is easy to fit in any room. Narrow hallways and small staircases won"t be an issue. The instant foundation/box spring can support any mattress - memory foam, innerspring or latex - and supports it evenly throughout to prevent sagging and increase the longevity of the mattress. The wood, the cover, and all tools and accessories needed for foundation assembly are included.