About this product
Quadrant Soft Curved Modular Sofa — Flexible, Sustainable Comfort With a New Twist
Elevate your living space with the updated Quadrant Soft Modular Sofa, now featuring three brand-new curved modules, Small Single, Large Single, Curved Double and Curved Ottoman. Designed and made in Australia, this versatile and sustainable sofa system is a modern classic from Koskela, reimagined to fit tricky spaces, organic layouts, and creative interiors.
Originally inspired by the easy comfort of baggy jeans, the Quadrant Soft Sofa has been a Koskela favourite since 2009. With the introduction of curved components, you can now mix and match both curved and standard modules to create dynamic, flowing shapes — from cosy corners to open, welcoming zones.
Each module is constructed from dense yet lightweight foam, allowing you to move, reconfigure, and adapt your setting with ease — no tools required. Whether you're planning a reading nook, breakout zone, or evolving living area, the Quadrant range delivers agile, reconfigurable comfort.
Design your own colour story with mix-and-match removable covers, available in a wide range of sustainable fabrics. You can even update your sofa with seasonal covers — fresh tones for summer, cosy textures for winter — extending its life and reducing waste.
Backed by Koskela’s Repair & Renew program, every part is replaceable to keep your sofa looking and feeling its best. Signature features like leather cross-stitching and embossed handles add refined detail to this iconic design.
The Curved Quadrant Soft range can be mixed and matched with our Standard Quadrant Soft range to build your perfect setting.
Use our handy configurator to Build your own Setting
This Quadrant range is available in:
Key Features:
- Australian Made – Designed and manufactured locally to support Australian industry and ensure high-quality craftsmanship
- Fast Lead time - 8 weeks manufacturing time
- Modular Flexibility – Available in single, double, corner and Ottoman modules to suit a wide range of spatial layouts and allowing for reconfiguration as your space evolves
- Lightweight – Manufactured from dense but lightweight foam - making it easy to move, reconfigure, and adapt to evolving needs
- Mix and match – Fabrics, colours and textures across different modules to create a look that’s completely tailored to your space
- Removable Covers – Zip-off seat and back covers that can be spot cleaned, dry cleaned, or replaced to extend product life. Extra covers can be purchased to update your sofa to adapt to different seasons (eg. Winter / Summer covers)
- Built for Repair – For sofas that aren’t compatible with removable covers (purchased prior to November 2021) Sofas can be retrofitted and reupholstered to adapt to removable covers
- Customisable arrangements – Also available in a curved range, ideal for tricky spaces.
- GECA certified
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7-Year Warranty – Includes access to Koskela’s aftercare maintenance program
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Product information
| Length (mm) | 1077 (Outer Length) / 631 (Inner Length) |
| Depth (mm) | 900 |
| Height (mm) | 730 (Seat 370) |
| Weight (kg) | 12 |
The specified lead time applies to metro locations throughout Australia. Unfortunately, we can’t guarantee this lead-time for customers living in non-metro areas and Tasmania, Western Australia and the Northern Territory. For customers in these locations our customer service team will provide you with an accurate lead-time once you place an order.
Throughout the Made-to-Order process we will keep you updated via email on the progress of your order. Koskela’s customer service team is also available if you have any questions.
Lead time for Curved Quadrant Soft Sofa - Large Single is currently: 8 Weeks
| Shipping | Calculated at the checkout |
| International Shipping | Contact info@koskela.com.au |
Before purchasing a furniture product please make sure we can get it into your home! We provide the dimensions for all furniture products. Check these against the measurements for your doorways, stairway and/or elevator. We can only deliver above the ground floor if there is access to a lift, enough safe space access, or if the item weighs less than 75kg. Koskela can’t be held liable if your product can’t be delivered into your home.
Why choose me
Made in Australia
This product is manufactured in Australia. Buying Australian-made supports local businesses and jobs, supports our community, and strengthens our economy.
Sustainably Certified
This product has at least one of the following certifications: Good Environmental Choice Australia (GECA), ISO 14001:2015 Environmental Management, OEKO-TEX® or Global Organic Textile Standard (GOTS).
Female-run Business
This product is made by a female owned and operated business. Supporting female businesses has trickle-down benefits for the entire community which includes education, employment, and economic opportunities.
Removable Covers
This product features a removable cover which makes it easy to clean, refurbish, and last forever. This design feature not only enhances durability but also substantially reduces our carbon footprint.
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