Did you know there are different chair springs?

Understanding the Different Types of Springs in Furniture

Coil springs, also known as biconical springs, are essential for providing comfort and support in upholstered furniture. These springs are anchored to surfaces like jute webbing, rails, or wooden frames, distributing weight evenly to enhance stability and comfort.

To keep coil springs secure, it’s common to tie the tops together using jute twine or sew them onto hessian fabric. This prevents movement, ensuring the springs continue to provide reliable support over time.

Using a large curved needle to sew jute webbing is the best method. The curve makes it easier to stitch through multiple layers of fabric, ensuring a tight and secure attachment of the springs.

By following proper spring securing techniques, upholsterers and furniture makers can enhance the longevity and comfort of their products, providing lasting support for users.

Zig zag springs (also called sinuous, serpentine, or no-sag springs) are favoured for their durability and consistent support in upholstered furniture.

When installing zig zag springs, spring clips are often used to secure them firmly in place. This method helps the springs withstand pressure and maintain their position over time.

Zig zag springs are designed to span the width of the frame, creating a subtle arch or crown shape. This curvature helps distribute weight evenly, ensuring a balanced and comfortable seating experience.

To increase stability, zig zag springs are often tied together at intervals with jute twine. This helps maintain their alignment, preventing sagging and ensuring consistent support over time.

A layer of hessian fabric is typically added over the zig zag springs to protect them from wear. This fabric also cushions the springs, contributing to a more comfortable seating surface and extending the lifespan of both the springs and foam layer.

Tension springs, often seen in mid-century chairs, provide unique support, contributing to both comfort and functionality in these pieces.

Tension springs are typically 10% smaller than the furniture frame, which allows them to stretch when installed. This creates a taut, supportive foundation that helps distribute weight and enhances seating comfort.

For a tight seat, the tension springs should be covered with hessian fabric before adding foam. This acts as a protective barrier, reducing wear and helping to secure the springs in place.

For a loose seat, quilted lining is used to cover the tension springs. The padding ensures comfort while keeping the springs in position, preventing any unwanted shifting.

 

Furniture Springs