At Southern Precision Spring (SPS), we’re more than a spring manufacturer—we’re your partner in building motion furniture and industrial components that demand strength, quiet operation, and long-term reliability.
From extension springs to sound-dampening foam technology to wire forms like mattress retainers, we provide custom solutions designed and manufactured in Charlotte, North Carolina, for customers across the United States and beyond.
Extension Springs: Reliability Under Tension
Extension springs are at the heart of what we do at SPS. Built for strength, durability, and consistent performance, our extension springs are widely used in motion furniture, including recliners, sofas, and loveseats.
Each spring is engineered to your exact specifications, with customizable options for materials, finishes, hooks, and load requirements—ensuring smooth, reliable movement and long-lasting comfort in every piece of furniture.
Sound-Dampening Foam Technology: Quiet Comfort in Motion Furniture
Noise is the enemy of comfort. That’s why SPS developed sound-dampening foam that is manufactured inside the spring coils to reduce vibration and eliminate squeaks in motion furniture applications.
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Foam inside the coil maximizes surface contact, dampening noise during operation.
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Perfect for recliners, loveseats, and sleeper sofas, where quiet performance defines product quality.
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Helps furniture manufacturers differentiate their products and reduce warranty claims.
This technology ensures your furniture moves as smoothly—and quietly—as your customers expect.
Wire Forms: Mattress Retainers & Custom Solutions
Alongside springs, SPS manufactures custom wire forms, including mattress retainers, that play a vital role in motion furniture and bedding.
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Mattress Retainers: Keep mattresses securely in place during recliner or adjustable bed movement.
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Custom Wire Forms: Built to your design, from simple shapes to complex geometries.
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High-Strength Materials & Finishes: Durable wire forms engineered to withstand repeated use and environmental stress.
Our wire form capabilities expand your design flexibility, helping you solve challenges beyond springs.
Why Manufacturers Choose SPS
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Charlotte, NC Manufacturing – U.S. based production with responsive support.
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Over 60 Years of Experience – Family-owned, proven expertise across industries.
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Engineering Support – From prototyping to full production, our team helps optimize cost, performance, and manufacturability.
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Comprehensive Capabilities – Springs, wire forms, finishes, sound-dampening technologies, assemblies, and kits.
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Quality Assurance – Our team uses calibrated tools such as load testers, gauges, and pins to monitor production and ensure parts meet strict precision and consistency standards.
Industries We Serve
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Motion Furniture – Extension springs, mattress retainers, and custom wire forms.
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Appliances & Consumer Goods – Quiet, durable springs, wire form solutions, and assemblies.
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Outdoor Power Equipment – Weather-resistant tension, extension, torsion, compression springs, wire forms, and assemblies.
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Automotive & Industrial Applications – Custom springs and wire forms engineered to tight tolerances.
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As well as many others .
SPS is here to help
Looking for extension springs, sound-dampening solutions, or custom wire forms like mattress retainers?
Request a Quote Today and discover how we can support your next project with precision-engineered components from Charlotte, NC.
