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Kube Grand - Sofa in a Box

Kube Grand - Sofa in a Box

Vacuum Packed & Comes in 5 Boxes.

Save 44% £949.99 £1,689.99 Sale
Extra 20% off with code EXTRA20
  • Inflates or “plumps up” to its full size and firmness within 72 hours.
  • Quick setup – no tools or complicated assembly required.
  • The Grand comes with 6 Metal bars
  • Removable, machine-washable covers for easy cleaning and maintenance.
Order today for 2-man delivery within 7-14 days.
Free Delivery Within 7-14 days
5 Year Warranty Quality you can count on
60 Day Risk-Free Trial Try it at home, love it or return it.
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Your Sofa. Your Way
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The Kube can be turned into a bed in a matter of seconds

KUBE Grand – Bold Comfort, Endless Flexibility

Crafted with precision, KUBE Grand features four premium sofa bases, two angled cushions, and two straight cushions—designed for easy rearrangement to suit your space and lifestyle. Built for both lounging and sleeping, this expansive modular configuration provides generous seating with the adaptability to transform as your needs change.

The sofa bases are made from high-density foam (T30) with a balanced elasticity of ILD 45, delivering the ideal blend of firm support and plush comfort. Whether you are stretching out for a movie night or accommodating overnight guests, KUBE Grand offers lasting comfort you can rely on.

The angled cushions are filled with our signature EcoFoam Blend, encased in a non-woven inner sleeve. This design allows the outer fabric to be easily removed for cleaning or cover changes without disturbing the internal structure. Wrapped in a luxurious corduroy fabric (90% polyester, 10% nylon),

Wrapped in our signature luxurious corduroy fabric (90% polyester, 10% nylon), KUBE Grand combines durability with tactile elegance. With a Martindale rating of 35,000 and colour fastness to light of 4–5, the upholstery is made to withstand everyday use while retaining its look and feel. Chrome-plated steel bars provide essential stability while allowing for modular flexibility.

Personalization is at the heart of the KUBE Grand experience. Change the colour at any time by purchasing a new cover set—go bold, go neutral, or reinvent your space seasonally. Add extra cushions in contrasting tones for a unique, curated look that is all your own.

Part of the KUBE Collection, KUBE Grand is built for longevity. Instead of replacing your entire sofa as your needs evolve, simply reconfigure the layout or refresh the fabric. With KUBE Grand, design meets adaptability—delivering style, comfort, and practicality that lasts.

 

The Basics

  • Vacuum Packed & Comes in 5 Boxes.
  • Inflates or “plumps up” to its full size and firmness within 72 hours.
  • Quick setup – no tools or complicated assembly required.
  • The Grand comes with 6 Metal Grips.
  • Removable, machine-washable covers for easy cleaning and maintenance.
  • Sofa Bases: High-Density Foam
  • Foam Density: RX33
  • Foam Elasticity: 45
  • Cushions: EcoFoam Blend in a Non-Woven Sleeve
  • Frame: Chrome-Plated Steel Bars
  • Upholstery Fabric: 90% Polyester / 10% Nylon
  • Certifications: All components of the sofa bases and cushions are Oeko-Tex® certified, ensuring they meet high standards for environmental safety and human health.
  • Sofa Configuration
  • Width: 300 cm / 118.1 in
  • Depth: 200 cm / 78.7 in
  • Height: 70 cm / 27.6 in
  • Seat Height: 34 cm / 13.4 in
  • Seat Depth: 65 cm / 25.6 in
  • Seat Width: 230 cm / 90.6 in
  • Seat Seat Length: 170 cm / 66.9 in
  • Unfolded (Bed) Configuration
  • Width: 400 cm / 157.5 in
  • Depth: 200 cm / 78.7 in
  • Height: 53 cm / 20.9 in

Delivery

We offer free delivery across the UK Mainland on all orders. All deliveries are fully tracked, with an estimated delivery time of 7–14 working days from dispatch. Once your order has been shipped, you'll receive tracking information where available. If you have any questions about your delivery, please contact our team at hello@sofa-concepts.co.uk.

Returns

We offer a 60-night trial on all products, giving you peace of mind with your purchase. If you're not completely satisfied, you can request a return within 60 nights of delivery. Approved refunds are processed to your original payment method after the returned item has been inspected. For assistance, contact us at hello@sofa-concepts.co.uk before returning your item.

Quality Guarantee

We cover manufacturing defects in frame, stitching, foam, and mechanisms. Normal wear & tear, accidents, or misuse are not included.Tiered 5-year coverage: Year 1 (100%) → Year 5 (20%).

Easy Claims

Simply email hello@sofa-concepts.co.uk with your order number and photos of the issue.
Repairs, replacements, or partial refunds handled quickly.
Year 1 delivery costs included; later years may have fees.

Do

  • Machine wash cold
  • Use mild detergent
  • Line dry

Don't

  • Bleach
  • Tumble dry hot
  • Dry clean

Sofa in a Box – Convenience Redefined

This sofa arrives in a compact 145cm x 25cm x 25cm box, vacuum-packed for easy delivery and effortless moving. No stairwell struggles, no bulky vans—just unbox, let it expand, and enjoy full-size comfort within hours. Perfect for modern living, small spaces, and hassle-free setup.

Sofa in a Box

Over 10,000 Happy Customers

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Exceptional Craftsmanship

Expertly engineered using high-density foam, durable support layers, and long-lasting fabrics, each sofa is crafted to maintain its shape and comfort—even after being vacuum-packed. Every component is designed for comfort, resilience, and easy transport.

Thoughtful Design

Created for modern homes and tight spaces, the sofa arrives compact and vacuum-sealed for easy delivery. It expands to full shape within hours, offering generous comfort without bulky frames. Lightweight sections make setup effortless—no tools, no stress.

5 Year Warranty

Quality you can rely on. All core components—from the foam structure to the fabric—are protected with a 5-year warranty, giving you peace of mind long after it has expanded and settled into your living space.

Loved by Thousands

Customers love the simplicity of unboxing, unrolling, and relaxing—no delivery drama, no stairwell struggles. Highly rated for its comfort, convenience, and practicality, it’s the sofa that fits your lifestyle as easily as it fits through your front door.

Exceptional Craftsmanship

Expertly engineered using high-density foam, durable support layers, and long-lasting fabrics, each sofa is crafted to maintain its shape and comfort—even after being vacuum-packed. Every component is designed for comfort, resilience, and easy transport.

Thoughtful Design

Created for modern homes and tight spaces, the sofa arrives compact and vacuum-sealed for easy delivery. It expands to full shape within hours, offering generous comfort without bulky frames. Lightweight sections make setup effortless—no tools, no stress.

5 Year Warranty

Quality you can rely on. All core components—from the foam structure to the fabric—are protected with a 5-year warranty, giving you peace of mind long after it has expanded and settled into your living space.

Loved by Thousands

Customers love the simplicity of unboxing, unrolling, and relaxing—no delivery drama, no stairwell struggles. Highly rated for its comfort, convenience, and practicality, it’s the sofa that fits your lifestyle as easily as it fits through your front door.

Excellent

Rated 4.8 / 5 based on 2400 reviews
Trustpilot
Lovely design
The Kube Lounge is amazing—super comfortable and the fabric feels premium. Delivery team brought it right into my flat. Very impressed!
Worth the price
Ordered the Kube Pillow and it arrived earlier than expected. Soft, supportive, and exactly as shown. Excellent customer service!
Beautiful finish
The Kube Grand has a beautiful finish. I was updated throughout delivery and got a precise time slot—very convenient.
Love the Kube Solo
Stylish and comfortable! The Kube Solo fits perfectly in my room and arrived much quicker than expected.
Great Storage Option
The Kube Box is sturdy and well-made. Perfect storage solution for my bedroom. The ordering process was smooth and quick.
Super Happy With My Purchase
Bought the Kube Duo—looks modern and feels premium. Delivery was hassle-free from start to finish. Love it!
Excellent service
The Kube Trio is perfect for our living area. Delivered on time and they even helped place it exactly where I wanted.
Beautiful lounge
Beautiful lounge seat. The Kube Lounge is soft yet supportive. Really happy with the quality!
Sofa in a Box

CoverSwap Assurance

With CoverSwap Assurance, you’ll never be stuck with the same look. For just £99.99, you can replace your sofa cover any time after 12 months – perfect for when you redecorate or simply fancy a fresh style. Hassle-free, stylish flexibility for your living room.