Better boxsprings are composed of a top grid that covers the entire top surface. The grid is wrapped around and welded to the border rod, making the grid one piece. The grid is then attached positively to the coils and attached to a substantial wood frame at the bottom, the result being a one-piece boxspring construction ready for a bedding manufacturer to finish. Innerspring mattress and boxspring finishing is done by the manufacturer after receiving the spring units from their supplier. Tempering or stress relieving of the coils is a necessary operation in the manufacture of innerspring units and boxsprings.
Tempering removes the stresses set up in the coils during manufacture.
Ticking is the package a bedding set is wrapped in. It's the flowered, striped, or other patterns you see on the outside of the mattress and boxspring. Top finishing is the way a mattress looks on top. Mattress tops are finished in several ways. For surface softness, many manufacturers quilt the ticking to soft urethane foam of varying thicknesses.