Buying a new sofa is exciting, but one of the biggest mistakes people make is choosing the wrong size. Too small, and it looks out of place. Too big, and suddenly your living room feels cramped. The key is knowing what size works best for your space and lifestyle before you buy.

This sofa size guide breaks down the options so you can pick the perfect fit.

Small Sofas (2-Seater)

Best for: Apartments, small living rooms, or as a secondary sofa.

A 2-seater sofa is compact and perfect for tight spaces. It usually measures between 150–180 cm in width. It works well for couples, small families, or as part of a set when paired with armchairs.

Tip: If you have a small room, go for a sofa with slim arms and legs that lift it off the ground—this makes the room feel bigger.

Medium Sofas (3-Seater)

Best for: Standard living rooms.

A classic 3-seater sofa is around 180–220 cm wide, giving enough space for family or guests without overwhelming a room. It’s versatile, fitting into both small and medium-sized spaces comfortably.

Tip: Positioning a 3-seater against a wall works well in smaller rooms, while floating it in the centre can define zones in open layouts.

Large Sofas & Sectionals

Best for: Spacious living rooms or open plan homes.

Sectionals and oversized sofas can measure anywhere from 250 cm upwards, with L- or U-shaped designs. They’re great for big families or households that love entertaining, providing plenty of seating without the need for extra chairs.

Tip: Always measure carefully to ensure your sectional doesn’t block doorways or windows. Using a rug underneath helps anchor it and keep the room balanced.

Measuring Your Space Correctly

Before buying, grab a tape measure and note down:

• The wall length or space available.
• The distance between your sofa and TV (ideally 2–3 metres).
• Clearance for walkways (leave at least 75–90 cm).
• Access through doors, hallways, and staircases.

Pro tip: Mark the sofa outline on the floor with masking tape. This gives a clear idea of how much space it will actually take.

Matching Sofa Size to Lifestyle

• Singles or couples: A 2- or 3-seater is usually enough.
• Families: Go for a large 3-seater or sectional to fit everyone comfortably.
• Entertainers: Modular lounges are flexible for hosting gatherings.
• Multi-use spaces: A sleeper sofa adds extra function without extra furniture.

A sofa isn’t just another piece of furniture—it’s where you unwind, host friends, or even sneak in a nap. Getting the size right means your living room works for you, not against you. With a little measuring and planning, you’ll end up with a sofa that feels like it was made for your home.