Sofa Federn

sofa springs. s-springs,independent springs,pocketed springs,used in sofa,cushions,mattress and other furnitures,size is customizable size range zigzag spring Zig zagsprings are made from two-dimensional S-shaped wires and are also known as "No-Sag springs," "S coils," "Zigzag (zig zag) wire" or "zigzag (zig zag) springs". They are commonly used in ottomans, chairs (seat and back) and sofas (seat and back) and take the place of coil springs. Sinuous springs install quickly and easily and don't require a time-consuming hand-tie job. They are fastened with clips and no-sag nails, and they run every few inches apart from front-to-back or top-to-bottom on seats, backs, ottoman, etc. wire diameter: 2.5-4.3MM (8-12gauge) height: 44-52MM width: 20-33MM surface: galvanized error control: ≤5mm independent spring diameter: 2.2-4.0MM (8-13 gauge) height: 80-300MM No.of turns: 4-7 surface: galvanized error control: ≤5mm pocket spring diameter of middle coil: 55-70MM diameter of wire: 1.6-2.2MM height: 80-180MM error control: ≤5mm