Superloop Springs

Superloop Upholstery Back Springs for Sofas and Chairs

Shop Superloop springs for repairing and manufacturing sprung sofa backs, chair backs and other upholstered furniture.

These 11-gauge upholstery back springs use larger and taller loops than standard zigzag springs, creating a softer and more flexible support suited to furniture backs.

Superloop springs may also be described as:

• Looped upholstery back springs
• Sinuous back springs
• Serpentine back springs
• Sofa back springs
• Chair back springs
• No-sag back springs
• Replacement furniture back springs

Livedale supplies Superloop springs in four lengths, available individually for furniture repairs or in packs of 50 for larger projects and regular upholstery production.

11-Gauge Superloop Upholstery Back Springs

The 11-Gauge Superloop Upholstery Back Springs – 20″ to 26″ are manufactured from approximately 2.95mm wire.

Available lengths include:

• 20″
• 22″
• 24″
• 26″

They can be purchased:

• Individually
• In packs of 50

The larger loop width and height provide a softer response than standard zigzag springs, making Superloop springs particularly suitable for upholstered furniture backs.

Potential applications include:

• Sofa backs
• Armchair backs
• Lounge-chair backs
• Upholstered bench backs
• Replacement furniture back springs
• New furniture manufacture
• Repairing existing Superloop spring systems

The correct length depends on the clear internal frame width, existing spring profile, fixing position and amount of tension required.

Looped Sinuous Springs for Furniture Backs

Superloop springs belong to the wider family of sinuous or serpentine upholstery springs.

Their continuous curved-wire construction allows the spring to flex as pressure is applied to the upholstered back.

Unlike traditional double cone springs, Superloop back springs are normally fitted directly across a furniture frame using compatible spring clips.

Their larger loops help provide:

• Softer back support
• Progressive flexibility
• A relatively shallow spring foundation
• Consistent support across the furniture back
• Quicker fitting than hand-tied coil springs

This makes them suitable for modern sofas and chairs where a flexible sprung back is required without the depth of a traditional coil-spring construction.

Choosing the Correct Superloop Spring Length

Before ordering replacement Superloop springs:

1. Identify the original spring type.
2. Measure an undamaged spring where possible.
3. Measure the clear distance between the fixing points.
4. Check the spring-wire diameter.
5. Count the number of loops.
6. Record the direction and height of the curve.
7. Measure the spacing between neighbouring springs.
8. Identify the existing spring clips.
9. Photograph any bracewire or connecting components.
10. Compare the replacement with the original construction.

Do not choose a spring using the external width of the sofa or chair.

Measure the internal furniture frame where the spring will be installed.

The spring must provide the correct amount of tension once fitted. A spring that is too short may be difficult or unsafe to install, while one that is too long may provide insufficient support.

20″ Superloop Back Springs

The 20″ Superloop spring is the shortest option in the current range.

It may suit:

• Narrow chair backs
• Smaller furniture frames
• Individual back-spring repairs
• Upholstered sections with shorter fixing spans

Measure the existing spring and frame carefully before selecting this size.

22″ Superloop Back Springs

The 22″ Superloop spring provides a medium-length option for suitable chair and sofa backs.

It may be appropriate where:

• The original spring measures approximately 22″
• A 20″ spring would be too short
• A 24″ spring would provide insufficient tension
• The furniture uses a medium-width back-spring span

24″ Superloop Back Springs

The 24″ Superloop spring may suit wider chair backs and suitable sofa sections.

Check the complete frame construction, as similarly sized furniture can use different spring lengths, loop patterns and clip positions.

26″ Superloop Back Springs

The 26″ Superloop spring is the longest option in the current range.

It may suit:

• Wider furniture backs
• Larger armchairs
• Sofa-back sections
• Frames originally constructed with longer Superloop springs

The longest available spring is not automatically the correct choice. It must match the original fixing span and spring tension.

Superloop Springs or Standard Zigzag Springs?

Superloop springs and standard zigzag springs use a similar curved-wire construction, but their loop dimensions and intended applications differ.

Choose Superloop back springs where:

• The original furniture used larger looped springs
• A softer sprung back is required
• The existing spring profile matches the Superloop design
• The furniture frame uses compatible clips

Choose Zigzag, Sinuous & Serpentine Upholstery Springs where:

• The furniture originally used standard zigzag springs
• A firmer back response is required
• Springs are being fitted within a seat base
• The existing loop pattern matches a standard zigzag profile

Standard zigzag springs can be used in suitable furniture backs where a firmer feel is required, while Superloop springs provide a softer response.

The two spring types should not be interchanged solely because their overall lengths are similar.

Replacement Sofa and Chair Back Springs

When replacing a broken sofa or chair back spring, inspect the complete spring system rather than only the damaged section.

Check:

• Neighbouring springs
• Frame clips
• Connecting wires
• Bracewire
• Timber fixing rails
• Upholstery layers
• Signs of corrosion or distortion

If one spring has failed, nearby clips or connecting components may also be worn or damaged.

Browse Upholstery Spring Clips, Bracewire & Fixings for compatible-style spring fixings and connecting components.

Spring Clips and Frame Fixings

Superloop springs are normally secured to suitable timber frame rails using compatible upholstery spring clips.

The exact clip must match:

• Spring-wire diameter
• End profile
• Frame construction
• Fixing-hole size
• Original installation

Do not assume that every zigzag or Superloop spring uses the same clip.

Before fitting:

1. Inspect the timber for splits.
2. Mark the original clip positions.
3. Compare the replacement clip with an undamaged fitting.
4. Use the correct nail, staple or fixing.
5. Keep the springs evenly spaced.
6. Check the spring alignment before rebuilding the upholstery.

For suitable hand tools, browse Upholstery Pliers, Stretchers & Pincers.

Bracewire and Connecting Components

Depending on the furniture construction, Superloop back springs may be linked using bracewire or other connecting components.

These help:

• Maintain spring spacing
• Reduce sideways movement
• Distribute pressure across neighbouring springs
• Keep the furniture back working as one support system

Record the original position of any bracewire before dismantling the furniture.

Browse Upholstery Spring Clips, Bracewire & Fixings for spring bracing and fixing products.

Upholstery Materials Used Over Superloop Springs

Once the replacement back springs are securely installed, the spring system may be covered with suitable upholstery materials.

These can include:

• Hessian
• Felt
• Polyester wadding
• Foam
• Platform or lining cloth
• Upholstery fabric or vinyl

Browse:

• Upholstery Hessian
• Upholstery Felts
• Polyester Wadding
• Foam & Fillings
• Upholstery Vinyl & Fabric

The upholstery build-up should follow the original furniture construction and provide an even surface over the spring system.

Superloop Springs or Traditional Coil Springs?

Superloop springs create a shallower and more contemporary spring system than traditional double cone springs.

Choose Superloop springs where:

• The original furniture used looped sinuous back springs
• A low-profile sprung back is required
• Springs are retained by frame clips
• Hand tying is not part of the construction

Choose Double Cone & Coil Upholstery Springs where:

• The furniture originally used traditional coil springs
• A deeper hand-tied construction is required
• The springs are supported on webbing
• Upholstery twine is used to control the spring foundation

Matching the original spring system is normally more straightforward than converting the furniture to a different construction.

Return to Upholstery Springs to compare furniture spring systems.

Safe Handling and Installation

Superloop springs can move suddenly when stretched, fitted or released.

Wear suitable eye and hand protection and keep the furniture frame securely supported.

Take care when:

• Removing broken springs
• Releasing frame clips
• Cutting bracewire
• Stretching replacement springs
• Handling sharp wire ends
• Working around old staples and nails
• Fitting springs under tension

Keep hands and face away from the expected path of a released spring or clip.

Do not fit a spring that is badly distorted, corroded or damaged.

Trade Superloop Upholstery Springs

Livedale supplies 11-gauge Superloop back springs, sinuous furniture springs and replacement sofa and chair back springs to professional upholsterers, furniture manufacturers, repair workshops and training providers throughout the UK.

Choose from 20″, 22″, 24″ and 26″ lengths, available individually or in packs of 50.

Approved trade customers can access preferential pricing across eligible products after registering for a trade account.

Measure the original spring, fixing span, wire gauge and clip system before ordering.