{"product_id":"w7a","title":"Tension Springs","description":"\u003ch2\u003eProduct Description\u003c\/h2\u003e\n\u003cp\u003ePlastic covered tension springs. Sizes from 15 inch rising in one inch increments to 20 inch - length includes hooks.\u003cbr\u003e Note, the measurement of each spring is from hook to hook \u003cbr\u003e Tension spring plates are available here\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cp\u003eTension Springs: Springs available in 6 colour\/size options.\u003c\/p\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\u003ctable class=\"product-specs\" style=\"width:100%;border-collapse:collapse;\"\u003e\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eSprings \u0026amp; Suspension\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSupplier\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eUpholstery Warehouse\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eSuitable For\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eTrade and domestic upholstery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\u003cstrong\u003eDespatch\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd\u003eFast UK despatch from stock\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\u003c\/table\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cdl class=\"product-faq\"\u003e\n\u003cdt\u003eWhat is Tension Springs used for?\u003c\/dt\u003e\n\u003cdd\u003eTension Springs is used in the suspension system of upholstered seating to provide bounce, support, and comfort. Coil springs are used in traditional upholstery; tension springs in modern suspension systems.\u003c\/dd\u003e\n\u003cdt\u003eWhat height and gauge of coil spring do I need?\u003c\/dt\u003e\n\u003cdd\u003eSpring height is selected based on the depth of the seat frame — typically 15-23cm (6-9 inch) springs for seat cushions. Gauge (wire thickness) determines firmness — 9 SWG is standard for seats; heavier gauges for firmer applications. The specification is in the product title.\u003c\/dd\u003e\n\u003cdt\u003eWhat is the difference between coil springs and tension springs?\u003c\/dt\u003e\n\u003cdd\u003eCoil (barrel) springs are used in traditional and high-end upholstery, tied in a grid pattern over webbing for deep, bouncy support. Tension (sinuous\/no-sag) springs are used in modern furniture, running front-to-back in a serpentine shape for a firmer, lower-profile seat.\u003c\/dd\u003e\n\u003cdt\u003eHow are upholstery coil springs tied?\u003c\/dt\u003e\n\u003cdd\u003eTraditional coil springs are tied using laid cord in a figure-8 knot pattern, connecting each spring to its neighbours and the frame. Springs are lashed in both directions (front-to-back and side-to-side) to prevent tilting.\u003c\/dd\u003e\n\u003cdt\u003eWhy choose Upholstery Warehouse for springs and suspension?\u003c\/dt\u003e\n\u003cdd\u003eUpholstery Warehouse stocks a comprehensive range of upholstery springs and suspension components used by professional upholsterers across the UK, at trade prices with fast despatch.\u003c\/dd\u003e\n\u003c\/dl\u003e","brand":"Upholstery Warehouse","offers":[{"title":"16in","offer_id":57210149699924,"sku":"W7B","price":5.22,"currency_code":"GBP","in_stock":true},{"title":"17in","offer_id":57210149732692,"sku":"W7C","price":5.51,"currency_code":"GBP","in_stock":true},{"title":"18in","offer_id":57210149765460,"sku":"W7D","price":5.94,"currency_code":"GBP","in_stock":true},{"title":"19in","offer_id":57210149798228,"sku":"W7E","price":6.19,"currency_code":"GBP","in_stock":true},{"title":"20in","offer_id":57210149830996,"sku":"W7F","price":6.52,"currency_code":"GBP","in_stock":true},{"title":"21in","offer_id":57210149863764,"sku":"W7FF","price":6.91,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1072\/6552\/4052\/files\/Tension-Springs.jpg?v=1789827210","url":"https:\/\/upholsterywarehouse.co.uk\/products\/w7a","provider":"Upholstery Warehouse","version":"1.0","type":"link"}