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A box spring comprises a rectangular base frame, a wire grid, and a plurality of parallel rows of coil springs supporting the grid atop the base frame. Each row of coil springs is made from a single continuous length of wire in which adjacent coils are interconnected by an interconnecting segment of

A box spring comprises a rectangular base frame, a wire grid, and a plurality of parallel rows of coil springs supporting the grid atop the base frame. Each row of coil springs is made from a single continuous length of wire in which adjacent coils are interconnected by an interconnecting segment of the wire. Each interconnecting segment is in the form of a generally diagonally extending bar having substantially parallel end portions interconnected at the center by an offset section, which offset section is formed by rotating the offset section relative to the parallel end portions while the end portions are restrained against rotation.

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A box spring for supporting a bedding mattress, which box spring comprises a generally planar base, a planar wire grid, and a plurality of parallel rows of coil springs resiliently supporting said wire grid spaced from said base, each of said rows of coil springs being formed from a single continuou

A box spring for supporting a bedding mattress, which box spring comprises a generally planar base, a planar wire grid, and a plurality of parallel rows of coil springs resiliently supporting said wire grid spaced from said base, each of said rows of coil springs being formed from a single continuous length of wire and each of said rows containing a plurality of coils interconnected by interconnecting segments, alternate ones of said interconnecting segments being disposed in the planes of said base and grid, the axes of said coils being disposed perpendicular to the plane of said base and grid, each of said coils terminating in a cordal flat bar located in a plane of said base and grid, and the cordal flat bars of adjacent coils being interconnected by said interconnecting segments, each of said interconnecting segments being in the form of a generally diagonally extending bar having substantially parallel end portions connected to said cordal flat bars at a point on said cordal flat bars which is tangential to said coils, said substantially parallel end portions of said diagonally extending bar being connected at the center by an offset section, said offset section forming an obtuse angle with each of said parallel end portions, said offset section being formed by rotating said offset section while said parallel end portions are restrained against rotation so as to convert said diagonally extending bar from a non-planar to a planar configuration, padding located on the top side of said wire grid, and an upholstered covering encasing said base, rows of coil springs, wire grid, and said padding.