Professional Upholstery Essential Independent Pocket Spring Unit For Sofa Cushion Seating Frames

Discover how independent pocket spring units are built for sofa cushions and seating frames in this factory walkthrough. We demonstrate the 2.0mm steel wire coil structure, 6-12cm spring heights, 4-7 turn configurations, and show how units attach to mesh grids, plywood platforms, or foam encasement. Viewers will learn how fabric weight, coil counts, and base attachment choices affect comfort, edge support, and durability — practical insights for upholstery and furniture manufacturers sourcing pocket spring solutions.