9 Gauge (3.6mm) Double Cone Springs

Description

🌀 9 Gauge (3.6mm) Double Cone Springs

9 gauge double cone springs (3.6mm wire) are the traditional choice for creating firm, supportive seat bases in high-quality furniture. With their classic hourglass shape, they deliver both strength and resilience, making them ideal for traditional upholstery and premium modern seating.

🪑 Where to Use 9 Gauge Coil Springs

These heavier springs are designed to provide a firmer feel than lighter gauges. Typical applications include:

• Seat bases – offering strong, long-lasting support

• Large or deep seats – preventing sagging and maintaining shape over time

• Traditional furniture builds – where durability and structure are key

For a slightly softer seat, upholsterers often turn to 10 gauge double cone springs, especially on smaller chairs or sofas.

📏 Technical Details

• Gauge: 9 (3.6mm wire – heavy duty)

• Design: Double cone (hourglass) spring

• Applications: Firm seat bases in sofas and chairs

• System use: Perfect for 8-way hand-tied units in traditional upholstery

✅ Key Benefits

• Provides a firm and supportive seating platform

• Stronger than 10g and 12g alternatives

• Ideal for deep or large seating projects

• Long-lasting durability in high-use furniture

Trusted for antique restoration and new upholstery builds

🔗 Related Products & Accessories

🧩 Create strong, durable upholstery builds by combining your heavy-gauge coil springs with quality twines, tools, and materials from Foam4U.

🏠 Explore the Foam4U Homepage for foam cut to size, upholstery sundries, and workshop essentials.

🧵 Use high-tensile Upholstery Twines & Threads to hand-lace or cross-tie each spring, ensuring tension and stability.

🪡 Select professional-quality Upholstery Needles, Pins & Skewers for accurate positioning and secure stitching of spring ties and hessian layers.

📦 Browse the wider Upholstery Sundries Collection for hessian, webbings, and lining cloths to finish your seating system like a pro.

💡 With Foam4U, you’ll find everything from coil springs and tying cords to lining fabrics — all engineered for strength, precision, and longevity.
👉 All prices include VAT.