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Buying Guide9 April 2026Updated 26 April 2026

Sectional Sofas — Configuration Guide for Every Room Shape

Sectional sofas offer unmatched flexibility, but choosing the right configuration for your room shape is crucial. This guide covers L-shape, U-shape, and custom configurations for Australian homes.

Sectional Sofas — Configuration Guide for Every Room Shape

Sectional sofas have become the centrepiece of Australian living rooms, and for good reason. They offer more seating in less visual clutter than multiple separate pieces, they define living zones in open-plan spaces, and they provide the kind of generous, lounging comfort that suits our relaxed lifestyle.

But choosing the right configuration is where many buyers stumble. The wrong sectional shape can make a room feel cramped, block traffic flow, or leave awkward dead zones. Here's how to get it right.

Understanding Sectional Anatomy

Before choosing a configuration, understand the components:

  • Corner piece: The L-shaped connecting module
  • Armless section: Straight modules without arms, used to extend length
  • Arm section: End pieces with one arm
  • Chaise: An extended seat for lounging, typically at one end
  • Ottoman: A separate footrest that can be positioned freely

L-Shape Configuration

Best for: Medium to large rooms, open-plan living areas, rooms with a corner to fill

The L-shape is the most popular sectional configuration in Australia. It provides generous seating while naturally defining a living zone in open-plan spaces.

Placement tips:

  • Position the longer arm along the main wall, with the shorter arm extending into the room
  • The chaise end should face the room's focal point (TV, fireplace, or view)
  • Leave at least 90cm between the chaise end and any opposing furniture for comfortable passage
  • In open-plan spaces, the back of the L-shape creates a natural boundary between living and dining zones

Left-hand vs right-hand: Stand facing the sofa. If the chaise is on your left, it's a left-hand configuration. Choose based on your room layout — the chaise should extend toward the centre of the room, not toward a wall.

U-Shape Configuration

Best for: Large living rooms, dedicated media rooms, families who entertain frequently

The U-shape creates an intimate, enveloping seating arrangement that's perfect for conversation and movie nights. It requires a larger room but provides maximum seating capacity.

Placement tips:

  • Centre the U-shape on the room's focal point
  • Ensure at least 120cm of clear space on the open side for entry
  • The internal space should comfortably accommodate a coffee table with room to pass
  • This configuration works best floating in a room rather than pushed against walls

Chaise Configuration

Best for: Smaller rooms, apartments, rooms where only one person typically lounges

A sofa with a single chaise extension offers lounging comfort without the footprint of a full L-shape. It's the most space-efficient way to get sectional functionality.

Placement tips:

  • Position the chaise end near a window for a natural reading/lounging spot
  • The chaise can extend along a wall or into the room
  • Pair with a separate armchair on the opposite side for balanced seating

Modular Configuration

Best for: Renters, people who move frequently, rooms that serve multiple purposes

Modular sectionals consist of individual pieces that can be rearranged at will. This is the ultimate in flexibility — reconfigure for movie night, separate into individual seats for a party, or rearrange when you move to a new home.

Placement tips:

  • Start with a core configuration and adjust as you learn how you use the space
  • Keep spare modules accessible for easy reconfiguration
  • Consider how the pieces look both together and separated

Room Shape Solutions

Square Room (4m × 4m to 5m × 5m)

An L-shape positioned in one corner creates a cosy living zone while leaving the rest of the room open. Avoid U-shapes in square rooms — they'll dominate the space.

Rectangular Room (3.5m × 6m to 4.5m × 7m)

Position a long L-shape along the longer wall, with the short arm creating a natural room divider. This maximises seating while maintaining traffic flow along the room's length.

Open-Plan Living/Dining (6m × 8m+)

A floating L-shape or U-shape works beautifully here. Position the sofa to face the living zone's focal point, with the back creating a visual boundary with the dining area.

Narrow Room (3m × 5m)

Skip the sectional and opt for a standard sofa with a separate ottoman that can be moved as needed. In very narrow rooms, a sectional can make the space feel like a corridor.

Irregular Room

Modular configurations shine in irregular spaces. You can create custom shapes that follow the room's contours rather than fighting them.

Common Mistakes

  1. Buying too large: Measure twice, buy once. A sectional that looks modest in a showroom can overwhelm a normal room.
  2. Blocking windows: Ensure the sofa back doesn't rise above window sill height if positioned in front of windows.
  3. Ignoring traffic flow: People need to move through and around the space. Map walking paths before committing to a configuration.
  4. Forgetting about doors: Will the sectional block any doors when fully assembled? Including cupboard doors and sliding doors to outdoor areas.
  5. Not considering the view from the kitchen: In open-plan homes, you'll often see the back of the sofa from the kitchen. Make sure it looks good from all angles.

Our Sectional Collection

At FOBOO, our sectional and modular sofas are designed specifically for Australian living spaces. Each configuration is available in multiple sizes, and our team can help you determine the optimal setup for your room. We provide detailed dimension guides and offer personalised configuration advice — because getting the shape right is just as important as getting the style right.

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