How to Choose the Right Cushion Size for Your Sofa

Why Cushion Size Matters More Than You Think

The right cushion can make a sofa look styled and intentional. The wrong size — too small, too many, or all the same — can make even a beautiful sofa look cluttered or flat. Choosing cushion sizes thoughtfully is one of the easiest ways to elevate your living room without redecorating.

Here's a practical guide to getting it right, whatever sofa you have.

The Most Common Cushion Sizes Explained

• 60×60cm: The largest standard square size. Best for big sofas, corner units, and floor seating. Creates a bold, generous look.
• 50×50cm: The most versatile size — works on almost every sofa. A great starting point if you're unsure.
• 45×45cm: Ideal for smaller sofas, armchairs, and bedroom use. Also works well as a front-layer cushion in a styled arrangement.
• Lumbar (50×30cm or similar): Rectangular cushions that sit across the centre of a sofa. They add visual interest and are genuinely comfortable for back support.

Browse our lumbar cushion covers and full range of cushion covers to find your size.

How Many Cushions Does a Sofa Need?

A general rule of thumb:

• 2-seater sofa: 2–3 cushions
• 3-seater sofa: 3–5 cushions
• Corner sofa or L-shape: 5–7 cushions

Odd numbers tend to look more relaxed and natural. Even numbers feel more formal and symmetrical — both can work depending on your style.

The Layering Formula That Always Works

If you want a styled, editorial look, use this simple layering approach:

1. Back row: Two large cushions (50×50cm) in a neutral base fabric — our boucle or linen covers work beautifully here.
2. Middle row: Two medium cushions (45×45cm) in a complementary texture — try chenille or woven covers.
3. Front: One lumbar cushion across the centre to anchor the arrangement.

This creates depth, variety, and a sense of considered design without looking overdone.

Matching Cushion Size to Sofa Style

Low, modern sofas suit larger cushions — 50×50cm fills the back nicely and doesn't look lost against a low profile.

Traditional or high-backed sofas work well with medium sizes (45×45cm) so the cushions don't overwhelm the frame.

Armchairs are best served by a single 45×45cm cushion or a lumbar, keeping the seat usable and the look intentional.

A Note on Cushion Pads

Always size your cushion pad 2–5cm larger than your cover for a plump, full look. A 50×50cm cover pairs best with a 55×55cm pad. This small detail makes a significant difference to how your finished cushion looks and feels.

Explore our full collection of handmade cushion covers — available in boucle, chenille, velvet, linen, and woven fabrics.