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Lightweight springs commonly used on Parker Knoll chair backs. Softer than seat springs, built for comfort and resilience. 👉 All prices include VAT.
£1.69 – £2.80
Back tension springs (18 gauge) are widely used in the backs of recliners, lounge chairs, and classic upholstery builds — most famously found in Parker Knoll furniture.
These springs are thinner and softer than the heavier, plastic-coated seat springs, making them ideal for providing flexible support and gentle resilience in chair and sofa backs.
Gauge: 18 (lightweight and softer action)
Use: Typically fitted across chair backs rather than seats
Length: Measurement refers to the spring section only (allow an extra ½″ at each end for hooks)
Fitting tension: Should be stretched between ½″ – 1″ for correct performance
Specially suited for Parker Knoll and similar furniture styles
Provides softer tension for comfort in backrest applications
Designed for reliability and long-lasting use
Easy to install with standard upholstery tools
🧩 Combine flexibility, support, and comfort with quality upholstery materials designed for backrests and cushions.
🏠 Explore the Foam4U Homepage for premium upholstery sundries and foam supplies trusted by upholsterers and restorers nationwide.
🪡 Pair your springs with Upholstery Webbing to create balanced tension and long-lasting comfort across backs and arms.
🧽 Add tailored cushioning using Foam Cut to Size — from soft back foams to firm seat bases, cut precisely to your needs.
💡 Designed for both DIY and trade upholstery, Foam4U gives you everything required to rebuild, repair, or refine furniture for dependable comfort and professional performance.
👉 All prices include VAT.
36cm, 38cm, 40cm, 42cm, 44cm, 46cm
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