9 gauge (3.6mm) Double Cone Springs 7" / Each

9 Gauge (3.6mm) Double Cone Upholstery Coil Springs, 4" to 10"

The 9 Gauge (3.6mm) Double Cone Upholstery Springs provide firm, supportive foundations for traditional sofas, armchairs and other upholstered seating. Manufactured from heavy 3.6mm spring wire, they are particularly suitable for furniture requiring a firmer spring response.

Also known as hourglass springs, upholstery coil springs and traditional hand-tied furniture springs, their distinctive double cone design has long been associated with traditional upholstery craftsmanship.

Available in 4", 5", 6", 7", 8", 9" and 10" heights, these springs are supplied individually or in packs of 50 for professional furniture restoration and upholstery manufacture.

Features

• Heavy 9 gauge wire: 3.6mm diameter for firmer spring resistance.
• Double cone design: Traditional hourglass-shaped upholstery coil.
• Seven height options: Available from 4" to 10".
• Firm seating support: used for suitable traditional sprung seat foundations.
• Hand-tied construction: made for appropriate traditional upholstery installations.
• Furniture restoration: Suitable for replacing matching springs in antique and period furniture.
• Flexible quantities: Available individually or in packs of 50.

Choosing Between 9, 10 and 12 Gauge Upholstery Springs

Selecting the correct spring gauge is essential when repairing or restoring traditionally upholstered furniture.

9 Gauge (3.6mm) Double Cone Springs

The heaviest wire in the Status Fabrics range, generally selected for firm traditional seat support, particularly in sofas and armchairs.

10 Gauge (3.2mm) Double Cone Springs

A slightly lighter alternative, commonly used for smaller seats or furniture requiring a softer spring response.

12 Gauge (2.95mm) Double Cone Springs

The lightest of the three gauges, primarily suited to sprung furniture backs and upholstered arms where gentler resistance is required.

When replacing existing springs, always consider the original wire gauge, free height and spring arrangement rather than choosing purely by perceived firmness.

How Are Traditional Double Cone Springs Installed?

Traditional double cone springs are normally installed onto a strong foundation of tightly stretched upholstery webbing.

Each spring is positioned and attached to the webbing before being securely hand tied using suitable spring-lashing cord.

The tying process compresses and shapes the springs, helping establish the intended seat profile while maintaining correct alignment.

Once the spring foundation is complete, upholstery hessian is fitted over the springs, followed by suitable padding and filling materials.

Correct webbing tension, spring placement and lashing technique are important to the performance and longevity of the finished seat.

Essential Materials for Traditional Spring Upholstery

To complete a traditional upholstery spring installation,

Upholstery Webbing

Provides the structural foundation beneath traditional coil springs. Suitable heavy-duty webbing, often traditional jute webbing, is stretched tightly across the furniture frame to support the springs.

Laidcord Spring-Lashing Cord

Used for hand tying and stabilising coil springs. Proper lashing helps control spring movement, maintain alignment and establish the required seat shape.

Upholstery Hessian

Fitted over the completed spring foundation to provide a supporting layer for traditional upholstery fillings.

Felts & Wadding

Used within the upholstery padding layers to provide cushioning, soften the finished surface and create a smooth seating profile.

Choosing the Correct Spring Height

The 9 gauge double cone springs are available in seven heights:

• 4", approximately 102mm.
• 5", approximately 127mm.
• 6", approximately 152mm.
• 7", approximately 178mm.
• 8", approximately 203mm.
• 9", approximately 229mm.
• 10", approximately 254mm.

The correct spring height depends on the furniture frame, original construction and required finished seat profile.

Traditional coil springs are compressed during hand tying, meaning the installed height is generally lower than the spring's original free height.

When restoring an existing piece of furniture, compare the replacement with an undamaged original spring wherever possible.

Traditional Upholstery and Furniture Restoration

Double cone springs remain an important component of traditional upholstery, particularly in the restoration of antique sofas, armchairs and other period furniture.

Their individually tied construction allows experienced upholsterers to shape the spring foundation to suit the furniture's original design.

Replacing damaged springs with correctly specified components helps preserve the intended support and construction of the furniture.

For complete restoration projects, There is also upholstery webbing, hessian, spring-lashing cord, traditional fillings and specialist upholstery tools.

9 Gauge (3.6mm) Double Cone Coil Upholstery Springs, 4" to 10"

Heavy-duty 9 gauge double cone upholstery Coil springs, manufactured from 3.6mm wire, providing firm, supportive seating for traditional sofas, armchairs and upholstered furniture. Use it for hand-tied spring foundations, antique restoration and quality furniture manufacture.

Key Features:

• 9 gauge (3.6mm), heavy-gauge wire for firm seat support.
• Seven heights available, 4", 5", 6", 7", 8", 9" and 10".
• Traditional hourglass design, used for hand-tied upholstery spring foundations.
• Firm seating applications, suitable for sofas, armchairs and traditional sprung seats.
• Flexible quantities, available individually or in packs of 50.

Recommended Installation Materials:

• Upholstery Webbing, for creating a strong supporting foundation beneath the springs.
• Laidcord Spring-Lashing Cord, for securely tying, shaping and stabilising the springs.
• Upholstery Hessian, for covering the completed spring foundation.
• Felts & Wadding, for cushioning and padding the upholstery.