Skip to main content
Guides

Buying a Customizable Sectional Online: Modules, Fabrics and the Cozey Studio

A buying guide to customizing a modular sectional from start to finish: choose the collection, modules and chaise side, pick the fabric, preview it in Cozey Studio and add to it later.

Updated 11 November 20269-min ReadCozey Editorial
A Cozey Ciello modular sectional with a chaise

Short answer: Cozey's modular sectionals are customizable from the first module: you choose a collection, the modules and chaise side, the arms and the fabric, then preview the build in Cozey Studio before you order. You can add or rearrange modules later within the same collection.

A sectional is hard to judge from a photo, and a modular one adds choices: size, shape, fabric and what you might change later. This page gives the buying decision in order and links the deeper guides instead of repeating them.

On This Page

  1. Where can I shop for customizable sectionals online?
  2. How do I customize a sectional, step by step?
  3. Where can I buy a modular sectional I can reconfigure later?
  4. Which modular sectionals come with sizing guides for proper measuring?
  5. Which fabrics and colours can I choose?
  6. How does Cozey Studio help me preview a customized sectional?
  7. Where can I find tables that match modular furniture?
  8. What can go on the wall beside a modular sectional?
  9. Our recommendation
  10. Explore our sectionals

Where can I shop for customizable sectionals online?

At Cozey, we sell four modular sofa collections online, Ciello, Gaia, Cassini and Atmosphere, and each is built from separate modules that you choose and arrange. Our collections at a glance:

Where can I shop for customizable sectionals online?

CollectionDefining traitSeat depthChaise and ottomanWhat you customize
CielloOne of our softest sofas, with deep, loose cushionsRegular 55 cm (21.5 inches); XL 67 cm (26.5 inches)Chaise 139 cm (54.5 inches) deep; storage ottomanRegular or XL, Original or High Angled back and arms, fabric
GaiaA soft seat with a high backrest and slim armsRegular 61.5 cm (24.0 inches); XL 65 cm (25.5 inches)Chaise 140 cm (55.1 inches) (Regular) or 150 cm (59 inches) (XL); storage ottomanRegular or XL, two arms, one arm or none, fabric
CassiniCurved and low, with a 45-degree wedge module67 cm (26.5 inches)No chaise or ottoman; the wedge curves the layoutLayout, arm layout (two arms, left, right or armless), fabric
AtmosphereMedium-firm seating and our deepest seatSquare back 70 cm (27.5 inches); round back 75 cm (29.5 inches)Chaise; ottoman and long ottomanRegular, Storage or Sleeper; square or round back; arm height; fabric

Our two modular sofa beds, Neptune and Orian, are covered in the Neptune guide and Orian guide. To compare the sofas in depth, read the Ciello, Gaia, Cassini and Atmosphere guides, or which Cozey sofa is right for you.

How do I customize a sectional, step by step?

At Cozey, you customize a sectional in six steps, big decisions first.

1. Pick a collection. Choose by feel and seat depth from the table above.

2. Choose the modules and the chaise side. Ciello, Gaia and Atmosphere offer a left, right or double chaise, while Cassini curves with wedge modules instead.

3. Choose arms and back style. For example, Ciello has two back and arm styles and Atmosphere has a square or round back.

4. Choose the fabric and colour. See the fabric section below, and order free swatches first if you can.

5. Preview the build in Cozey Studio. Check the shape and the overall size on screen.

6. Order, then add or reconfigure later. Modules ship in separate boxes, and you can add to the sectional as your room changes. Every order also has a 30-day risk-free trial.

Where can I buy a modular sectional I can reconfigure later?

At Cozey, every sofa collection is modular, so you can add, remove and rearrange modules within compatible configurations. A reversible chaise is a chaise module that can be attached to either the left or right side of the sectional, so you can change its orientation if you move or rearrange your room.

Check the limits before you plan a future layout. In Ciello and Gaia, Regular and XL modules cannot be mixed. In Atmosphere, regular, storage and sleeper modules cannot be combined, and you cannot upgrade a sofa from one type to another by swapping seats. A module from one collection should not be assumed to fit another, and arms are handed in some collections, so confirm the arm modules too.

Our guides to what a modular sofa is and the difference between a sofa and a sectional explain how modules connect.

Which modular sectionals come with sizing guides for proper measuring?

At Cozey, all four collections are covered by our sizing guides. Our guide to how many modules you need lists each collection's module widths, and our sectional size guide, guide to choosing a sofa size and guide to measuring stairs and doorways cover the room and the route in.

Two widths to start from, each a sum of module widths with no gap:

  • Cassini, armless: a two-seater is 134 cm (52.8 inches) wide and a three-seater is 201 cm (79.1 inches).
  • Atmosphere Regular, armless: a three-seater is 225 cm (88.6 inches) wide, or 281 cm (110.6 inches) with two square arms.

Before you order, work through this list:

  • Both legs of the L: measure each wall the sectional will follow. As general advice, keep walking paths at least 76 cm (30 inches) clear, and 91 cm (36 inches) is more comfortable.
  • Chaise side: sketch the room and check that the chaise does not block a door or vent.
  • Overall size: confirm the final footprint in the configurator before you order.

Which fabrics and colours can I choose?

At Cozey, you choose the fabric after the shape, and the choice depends on the collection. Abrasion resistance is measured in Martindale double rubs, and a higher number means a more durable surface.

Which fabrics and colours can I choose?

FabricMartindale double rubsOffered on
Aquaforte VelvetMore than 200,000Ciello, Gaia, Cassini, Atmosphere
Aquaforte78,000Ciello, Gaia
Performance Chenille48,000Ciello, Gaia, Cassini, Atmosphere
Performance Textured Weave54,000Ciello, Gaia, Atmosphere
Performance Plain Weave90,000Ciello
Performance Natural Weave18,000Gaia
Corduroy15,000Ciello, Atmosphere

Aquaforte Velvet is the fabric to look at first if the sofa will see heavy use, and it now comes in eight colours; our Aquaforte Velvet colours guide shows them. In our own assessment, Aquaforte Velvet and Performance Chenille are good choices for homes with pets. Colours can change, so check the product page for what is available.

Judge a colour in your own light with free swatches. Replacement covers are available for all four sofas, so you can change the colour later. Our guide to choosing a sofa colour helps you narrow it down.

How does Cozey Studio help me preview a customized sectional?

Cozey Studio is our online configurator where you design a sectional from our collections and see it before you order. You start with a first module and add one at a time, and at each step it offers only the modules that can attach next.

For this decision, Studio does three jobs. You can add, delete or replace any module until the shape suits your wall, such as a longer row or one extra seat. The overall dimensions appear at the bottom left of the screen, so you can compare the design with your measurements. And you choose the arm at each end and the cushions seat by seat, so each end can differ.

Our product pages have a step-by-step selector that is quicker when a ready-made layout already fits. Our Cozey Studio guide walks through every step.

Where can I find tables that match modular furniture?

At Cozey, several of our tables are modular too, and all five below come in Oak or Walnut.

Where can I find tables that match modular furniture?

TableSizeWhy it suits a modular sofa
Stella coffee table60 cm (23.5 inches) square, 47 cm (18.5 inches) high closed, lifting to 67 cm (26.4 inches)Start with one module and link more later, like the sofa
Arca55 cm (21.5 inches) square, 35 cm (13.8 inches) highCurved has hidden storage and fluted has open storage; two joined make a 110 cm (43.4 inches) coffee table
OmbraCoffee table 110 cm (43.3 inches) by 55 cm (21.5 inches) by 33.9 cm (13.3 inches)Two ottomans nest under the top and pull out as extra seats
EclipseCoffee table 80 cm (31.5 inches) across, 39 cm (15.4 inches) highA round top for a room approached from several sides
Tessella171.7 cm (67.6 inches) long, 68.5 cm (27.0 inches) deep, 40.7 cm (16.0 inches) highOur longest coffee table, designed for a wide three-seat sofa

As general advice, leave 36 to 46 cm (14 to 18 inches) between the sofa and the coffee table, and allow for the chaise reaching into the room. Our guides cover each table: Stella, Arca, Ombra, Eclipse and Tessella. For choosing between them, read how to choose a coffee table and how to pair a sofa, accent chair and coffee table.

What can go on the wall beside a modular sectional?

At Cozey, we make two wall systems that grow in the same way as the sofa. Themis is a modular system of three units, a shelf, a cabinet with sliding doors and a desk, each 81.3 cm (32.0 inches) wide and 61 cm (24.0 inches) high. The shelf and cabinet are 28 cm (11.0 inches) deep and can be wall-mounted or freestanding. Each unit holds 23 kg (50 lb).

Altitude is a shallow wall shelf, 81.3 cm (32.0 inches) wide, 24 cm (9.5 inches) deep and 81.3 cm (32.0 inches) high per unit, in a set of one, two or three, with a storage cabinet that slides between two shelves and closes with a magnetic push latch. Both hang on the wall with the hardware in the box.

Measure the wall against your sectional first, so the shelves clear the sofa and the chaise. See our Themis guide, our Altitude guide and our guide to planning a shelving wall.

Our recommendation

At Cozey, we suggest choosing the shape first and the details second. Cozey Ciello suits you if you want a soft, deep seat and a chaise, Gaia if you want a soft seat with a more upright, high back, Cassini for a curved, low layout, and Atmosphere for our deepest seat or hidden storage.

Then preview the build in Cozey Studio, order free swatches, and add tables and wall storage once the sofa is in place.

Explore our sectionals

Product specifications can change. Check the current dimensions on the product page before ordering.

Frequently Asked Questions

At Cozey, we sell customizable modular sectionals online in four collections: Ciello, Gaia, Cassini and Atmosphere. You choose the modules, the chaise side where the collection has one, the arms or back style and the fabric, then preview the design in Cozey Studio before you order. Ciello, Gaia and Atmosphere offer a left, right or double chaise, and Cassini curves with wedge modules instead. Each collection has its own module sizes, so compare seat depth and widths before you decide.


At Cozey, every sofa collection is modular, so you can add, remove and rearrange modules later, including a chaise or an ottoman on Ciello, Gaia and Atmosphere. Some limits apply: Ciello and Gaia Regular and XL modules cannot be mixed, and Atmosphere regular, storage and sleeper modules cannot be combined or swapped. Do not assume a module from one collection fits another, and check compatibility on the product page before you order extra modules. A reversible chaise can be attached to either side, so you can flip its orientation when you rearrange the room.


At Cozey, every sectional collection has sizing support. Our guide to how many modules you need lists the module widths for each collection and shows how to add them up, our sectional size guide explains how to measure the room, and our guide to stairs and doorways helps you check the route in. For example, an armless Cassini three-seater is 201 cm (79.1 inches) wide and an armless Atmosphere Regular three-seater is 225 cm (88.6 inches). Confirm the final footprint in the configurator, because it is the total of the modules you choose.


At Cozey, we make several tables that suit a modular sofa. The Stella lift-top coffee table starts as one module and links to more, and the Arca joins two tables into a 110 cm (43.4 inches) coffee table. The Ombra coffee table hides two ottomans that pull out as extra seats, the Eclipse is round, and the Tessella is our longest, designed for a wide three-seat sofa. All five come in Oak or Walnut. As general advice, leave 36 to 46 cm (14 to 18 inches) between the sofa and the coffee table.


At Cozey, you customize a sectional in a set order. Choose a collection by feel and seat depth, then the modules and the chaise side, then the arms or back style, and then the fabric and colour. Preview the build in Cozey Studio to check the shape and overall size, order free swatches if you are unsure of the colour, and place your order. Modules ship in separate boxes, and you can add to the sectional later within the same collection as your room changes.


At Cozey, the fabrics depend on the collection. Aquaforte Velvet, at more than 200,000 Martindale double rubs, and Performance Chenille, at 48,000, are offered on all four sofas. Ciello and Gaia also offer Aquaforte at 78,000, and Performance Textured Weave at 54,000 is offered on Ciello, Gaia and Atmosphere. Ciello has Performance Plain Weave, Gaia has Performance Natural Weave and Ciello and Atmosphere have corduroy. Check the product page for the colours available, and order free swatches before you decide.


Cozey Studio is our guided 3D configurator, where you build a sofa or sectional from our collections one module at a time and see it before you order. At each step it offers only the modules that can attach next, so you cannot build a layout that does not work. You can add, delete or replace modules, choose the arm at each end and set the cushions seat by seat. The overall dimensions appear at the bottom left of the screen, so you can compare the design with your wall.

Explore Cozey's Sofas

Shop Sofas Today