Cushion Buying Guide: How to Choose the Right Size, Fabric and Colour for Your Sofa

Quick answer

Start with size, then fabric, then colour. For a standard three-seat sofa, use two 50x50cm cushions in each corner plus one 60x40cm lumbar cushion in the middle. Choose a mid-weight velvet or jacquard if you want pattern and depth, and keep colour to two or three tones drawn from the room. If you are unsure, buy one cushion first and live with it for a week before committing to a full set.

Cushions are the cheapest way to change how a sofa looks and feels, but they are also the easiest thing to get wrong. Buy too small and the sofa looks underdressed; buy too many and it becomes a pile you have to move every time you sit down.

This guide gives you decision rules rather than vague advice. You will learn how to match cushion size to seat width, how to compare velvet, jacquard and linen, and how to build living room cushion colours that hold together. Real Temperley London cushions are used as examples so you can see how the rules apply to specific sizes and fabrics.

How to choose cushions for a sofa: start with size

Measure the seat width of your sofa, not the whole frame. As a working rule, a two-seat sofa takes two 50x50cm cushions, a three-seat sofa takes two 50x50cm cushions at each end plus one 60x40cm cushion in the centre, and a large corner sofa takes four 50x50cm cushions split between the corners. Cushions should fill roughly two-thirds of the back height so they look generous without hiding the sofa's shape.

Square cushions give a formal, symmetrical look. Rectangular cushions are better for lower backs because they support the lumbar area without pushing your shoulders forward. If you want a softer, more collected arrangement, mix one large square with one rectangular cushion per corner rather than using only one shape.

• Measure seat width and back height before you buy, not after.
• Keep a 5-8cm gap between cushion edges so the arrangement looks intentional.
• If your sofa has a low back, choose a smaller cushion rather than a taller one.

Round cushion size guide

Round cushions are usually decorative rather than structural, so size matters more than filling. A 40-45cm round cushion works on an armchair or as a single accent on a small sofa. A 50cm round cushion is the practical maximum for most sofas because anything larger starts to look like a seat pad rather than a cushion.

Place a round cushion in front of a square one, slightly off-centre. This adds depth without needing another colour. If you are searching for a saskia round cushion, check the listed dimensions carefully, because round cushions are often described by diameter and the visual weight changes quickly with even a 5cm difference.

• Use one round cushion per seating area, not two.
• Offset it by a few centimetres so it does not look like a target.
• Skip round cushions on very deep sofas; they disappear into the back.

Cushion fabric guide: velvet, jacquard, linen and cotton

Fabric decides how a cushion feels and how long it lasts. Velvet gives depth and colour saturation, but it shows marks and needs brushing. Jacquard weave holds pattern well and tends to be more forgiving day to day. Linen and cotton are breathable and easy to clean, but they crease and look more casual.

For a family sofa, choose a tight weave or a cotton-backed velvet. For a formal sitting room, a deep-pile velvet or a printed jacquard adds the most impact. If you have pets, avoid loose weaves and long fringes, because claws catch them. Feather and down inners feel softer but need plumping; fibre inners hold shape with less effort.

• Velvet for colour and luxury, jacquard for pattern and durability, linen for a relaxed look.
• Check the reverse fabric: a cotton velvet reverse is usually more hard-wearing than a matching face.
• Feather and down inners suit occasional seating; fibre suits daily use.

Living room cushion colours that work together

Pick two or three colours maximum, and take at least one from something already in the room: a rug, artwork, or curtain. A safe formula is one neutral, one mid-tone, and one accent. If your sofa is already a strong colour, keep cushions tonal and use texture rather than more colour to add interest.

Pattern counts as colour. A striped or chevron cushion can carry two or three tones on its own, so pair it with a plain cushion rather than another pattern. If you want a seasonal change without replacing everything, swap only the accent cushion and keep the neutral base.

• Use the 60-30-10 rule: 60% dominant, 30% secondary, 10% accent.
• Repeat one colour at least twice in the room so it looks deliberate.
• Photograph your arrangement; problems are easier to see on a screen.

How many cushions is enough

An odd number usually looks better than an even one, but the practical limit is how many you are willing to move before sitting down. For a three-seat sofa, five cushions is a comfortable maximum: two in each corner and one in the centre. For a two-seat sofa, three is enough.

If you use a chaise or an armchair, one cushion is often sufficient. More than that and the seat becomes unusable. Rotate cushions every few weeks so they wear evenly and keep their shape.

• Odd numbers read as styled; even numbers read as matched sets.
• Leave at least one clear seat space with no cushion.
• Rotate and plump weekly to avoid flat spots.

Decision rules for buying cushions

• Sofa size: Two-seat: two 50x50cm. Three-seat: four 50x50cm plus one 60x40cm. Corner sofa: four 50x50cm split between corners. If you cannot decide, buy two 50x50cm cushions first and add from there.
• Fabric choice: Velvet for impact and colour depth, jacquard for pattern and durability, linen or cotton for a relaxed, washable look. Match fabric to how often the sofa is used, not just how it looks.
• Colour count: Two or three colours maximum, drawn from the rug, art or curtains. Pattern counts as colour. If two cushions fight, remove the brighter one and see if the room calms down.
• Round cushions: 40-50cm diameter, one per seating area, placed in front of a square cushion and slightly off-centre. Round cushions are accents, not the base of the arrangement.
• Filling: Feather and down for softness and occasional seating; fibre for daily use and shape retention. Check the inner composition before buying if allergies or maintenance matter.

Real cushions, real specifications

• Saskia Cushion - Peacock: Jacquard weave face with lustrous leopard spots, piped in a coordinating leopard braid, 50x50cm, made in England, 100% feather and down inner. The 50x50cm size is the standard square for a sofa corner, and the jacquard weave holds pattern without the care that velvet needs. Feather and down gives a soft, sink-in feel for occasional seating.
• Fantasia Velvet Cushion - Eclipse: Printed velvet face with cotton velvet reverse, 65x65cm, 100% feather and down inner, made in England. At 65x65cm this is a large statement cushion, best used alone on a big sofa or as a floor cushion. The cotton velvet reverse adds durability where the cushion touches the sofa.
• Talulah Cushion - Hot Pink: Épinglé velvet face with cotton velvet reverse, geometric chevron stripe design, 60x40cm, 100% feather and down inner, made in England. The 60x40cm rectangle is the right shape for lumbar support, and the épinglé velvet gives a dense, hard-wearing surface that suits daily use better than a loose pile.
• Talulah Cushion - Aruba: Same Talulah épinglé velvet construction and 60x40cm size as the Hot Pink version, in a different colourway. Buying the same cushion in two colourways is the simplest way to build a coordinated set without matching everything exactly.

Who this cushion approach suits

Best for

• Anyone styling a standard two- or three-seat sofa who wants a clear size formula
• Shoppers comparing velvet, jacquard and linen cushions for a living room
• People who want to add pattern and colour without replacing the whole room

Not for

• Outdoor furniture, which needs weather-resistant fabrics not covered here
• Anyone wanting a single cushion to fill an entire sofa back
• Shoppers who prefer a strict matching set rather than a mixed arrangement

Choose size first, then fabric, then colour, and buy one cushion before committing to a set. The rules above will get you to a sofa that looks considered without becoming a daily chore.