Curved Quadrant Soft Sofa
Koskela
(Cover Only) Curved Quadrant Soft Sofa - Large Single (800 Radius, 45 degree)
Koskela
(Cover Only) Curved Quadrant Soft Sofa - Small Single (1200 Radius, 30 degree)
How to build your Sofa
The Quadrant Soft Curved Sofa range is designed to let you create anything from a gentle curve to a full conversational setting using individual modules that can be mixed and matched to suit your space.
How the curved modules work
The curved range is made up of three key modules:
- Curved Double — creates the central curved section
- Curved Small Single (30° curve, 1200mm radius) — creates a softer, wider curve
- Curved Large Single (45° curve, 800mm radius) — creates a tighter, more dramatic curve
By combining these modules in different ways, you can create layouts that feel anything from subtle and relaxed to fully wrapped and immersive.
Using the Curved Double together with the curved single modules allows you to create semi-circular layouts ideal for conversation areas, lounges and communal spaces.
Mix curved and straight modules
The curved modules are also fully compatible with the standard Quadrant Soft Sofa range, meaning you can combine curves with classic straight modules including:
- Double
- Single
- Corner
- Ottoman
This gives you the flexibility to create layouts that are completely custom to your space — whether that’s a softly curved residential setting or a large-scale modular configuration for commercial projects.
Need help visualising your layout?
To make planning easier, we’ve created a handy configurator that lets you experiment with different combinations and understand how each curve changes the overall shape of the sofa.
Koskela’s Quadrant sofa. A sofa for life.
Life’s a journey. So we made a sofa that can go the distance. A sustainable, shape-shifting centrepiece (or side piece) for your home – ready to adapt to whatever life throws at it. And then some.
Meet the Quadrant Soft.
Not only is the Quadrant Soft completely modular, which means you can build your perfect setting any which way you want, but it also features 12 sustainable and elegant fabric options, so you can style it any which way you want, too. The Quadrant Soft is designed to fit your life for the long-haul.
Whether you’re looking for a two-seater combo for your one-bed apartment, a four-seater for your growing family or 100 individual pieces to kit out your boutique cinema, you can make it happen, comfortably, with the Quadrant Soft.
There’s a reason it’s our best-selling sofa.
The Quadrant Soft.
A sofa for life.
Sustainable fabrics that endure everyday life
In addition to aesthetics, tactility and durability, at Koskela, we also consider a material's origin and life cycle. Introducing our exclusive collection of 12 eco-friendly materials, carefully selected to withstand everyday life without compromising the planet. From soft organic cotton to innovative recycled fibres, we've assembled a palette of 100% sustainable fabrics that seamlessly complement one another.
Unleash your inner creativity and enjoy crafting a setting that truly reflects your unique personality and values.
Book a free Interiors Consultation
Re-imagine your home with an Interiors Consultation catered to your style, budget and space. We are exclusively offering virtual appointments with our qualified Interior Stylists.
Interior Consultations are a hassle-free and complimentary session designed to take the stress our of re-decorating. They sift through fabric samples, navigate custom builds and concepts so you can sit back and enjoy your dream space come to life.
Repair & Renew
At Koskela, we’re committed to creating a more circular future — where furniture is designed to last, adapt, and stay out of landfill. That’s why every product we make is built with repairability and longevity at its core.
When you purchase a Quadrant Soft Sofa, you automatically gain access to our Repair & Renew program, giving you long‑term support to keep your furniture in use for as long as possible. Through this program, you can easily repair, refurbish, or reupholster components to refresh your sofa rather than replace it — reducing waste while saving time and money.
Every Koskela product comes with a 7‑year warranty and access to:
Repair & reupholstery services
Buy‑back options
Ongoing product support
Together, these initiatives help extend the life of your furniture and support a more responsible, sustainable way of living.
Why choose us?
Removable covers
The Quadrant Soft Sofa features covers that can be easily removed for spot cleaning or dry cleaning, and are available in 11 sustainable fabric choices. Consider buying an extra set of covers to refresh your space with minimal cost and environmental impact as your needs or seasons evolve.
Lightweight and easy to move
The Quadrant Soft Sofa is made from dense foam that is lightweight and easy to manoeuvre meaning you can easily switch up your Sofa's configuration according to your evolving preferences and spatial requirements.
Extra covers
Want to extend the life of your sofa? Purchase a replacement sofa cover to give your Quadrant Soft a new lease on life.
Grows with you
Built for life’s changes. Add new modules anytime to create a sofa that evolves with your space, your family, and the way you live.
7 year warranty
At the core of Koskela’s enviro conscious policy is our commitment to make high quality products, that last for years and can be repaired if something goes wrong. That's why all Koskela products come with a 7-year warranty, to ensure you have access to repairs if you ever need it.
Repair&Renew
One of our design philosophies is to make sure all our products are easy to repair. Manufacturing in Australia means we carry spare components, and the original maker of your product also has the skills to quickly repair it and retain the quality.
Trade-in program
Our ReHome program lets you trade in, repair or buy pre-loved Koskela furniture so it can continue to be cherished for decades to come.
Made in Australia
This product is manufactured in Australia. Buying Australian-made supports local businesses and jobs, supports our community, and strengthens our economy.
Designing for good
We’re committed to creating furniture that’s better for people and the planet.
At Koskela, we believe design has a critical role to play in reducing waste, keeping materials in use, and lowering the overall footprint of the spaces we help create. That belief has led us to develop a new foundation for how we work:10 Circular Design Principles that now guide every product we make and every decision we take as a business.
