How to Wash Sofa Covers in a Washing Machine

At a glance

Removable or not: the first question

Before thinking about temperature or cycle, check whether your sofa has removable covers. This determines everything that follows.

A removable sofa has zippers (or Velcro) on each section — seat, back, armrests. The cover comes off like a pillowcase: you can put it straight in the machine.

A non-removable sofa has its upholstery sewn or stapled directly onto the frame. It cannot be removed without disassembling the sofa. In this case, cleaning is done on the surface (vacuuming, shampooing, steaming) rather than in a machine. The rest of this article covers removable covers.

How to check if your sofa is removable

1. Look for zippers: they are usually located under the seat cushions, along the back edge, or under the armrests.
2. Lift the cushions: removable seats lift independently from the frame.
3. Check the product sheet: the sofa’s technical specifications (often available online with the exact model) indicate whether the covers are removable.

The care label: your definitive guide

Every cover has a care label sewn inside, usually near the zipper. This label is your absolute reference — it overrides any general advice, including this article.

Key information to read on the label:

• The wash symbol (basin with a number): indicates the maximum temperature. A line under the basin means delicate cycle. Two lines mean very delicate cycle. If you are not familiar with care label symbols, check our dedicated guide.
• The drying symbol (square with a circle): one dot = low temperature drying, two dots = high temperature, a cross = forbidden.
• The bleach symbol (triangle): crossed out = no bleach, useful if you plan to whiten.

Wash temperature by fabric type

The cover fabric determines the temperature, cycle, and spin type. Here are the recommendations by material.

Fiber blends: which rule applies?

Most modern sofa covers are made from fiber blends (e.g. 65% polyester / 35% cotton). The rule is simple: always apply the conditions of the most delicate component. A cotton-polyester blend should be washed at 30 °C on the delicate cycle (polyester conditions), even though the cotton would tolerate 40 °C.

Before washing: preparing the cover

Good preparation makes the difference between a flawless result and a wrinkled or misshapen cover.

1. Remove all covers

Remove each section separately: seats, backs, armrests. Even if you only plan to wash the seats (the dirtiest), it is better to wash the whole set at the same time. Covers washed separately may show slight differences in shade or texture after drying.

2. Close the zippers

Open zippers can snag the fabric in the drum and cause tears. Close them all. If the zipper is fragile, place the cover in a large mesh laundry bag↗.

3. Turn inside out

This is an often overlooked but essential step. The inside of the cover is exposed to direct friction against the drum. By turning it, you protect the visible surface (the one you see while sitting on the sofa) from abrasion, fading, and pilling.

4. Pre-treat stains

Set-in stains (food, drink, sweat, pet urine) will not come out with a standard wash cycle. Treat them first:

• Grease stains (food, oil): sprinkle with baking soda, leave for 30 minutes, brush off.
• Drink stains (coffee, tea, wine): blot with cold water, then apply damp Marseille soap directly on the stain.
• Sweat stains (marks on armrests): paste of sodium percarbonate and water (1:1), leave for 1 hour.
• Persistent odors: soak for 30 minutes in cold water with 2 tablespoons of baking soda↗ per liter.

The first wash: watch out for shrinkage

Shrinkage is the main concern when washing sofa covers. A cover that shrinks by 3-5% no longer fits properly — the edges pull, zippers strain, and the cushion bulges.

Why shrinkage happens

Natural fibers (cotton, linen) are spun under tension during fabric manufacturing. On the first wash, hot water releases that tension and the fibers return to their natural length — shorter. This is an irreversible but predictable process.

How to minimize it

1. First wash at cold or 30 °C — even if the label allows 40 °C, stay 10 °C below for the first cycle.
2. No tumble dryer — dryer heat causes an additional 2-3% shrinkage on cotton.
3. Moderate spin (600-800 rpm) — excessive spinning compresses fibers and increases shrinkage.
4. Refit while slightly damp — a still-damp cover (not wet) naturally stretches back to the cushion shape.

Machine capacity: why the laundromat is often necessary

The weight and volume of a full set of sofa covers often catch people off guard. Here are the approximate figures:

• 2-seater sofa — single seat cover: 1.5-2.5 kg; full set: 3-5 kg
• 3-seater sofa — single seat cover: 2-3.5 kg; full set: 5-8 kg
• Corner/sectional sofa — full set: 7-12 kg

A domestic 7-8 kg machine can hold the covers of a 2-seater sofa, but the laundry will be packed — it will not circulate freely in the drum, rinsing will be insufficient, and detergent will not wash out properly.

For a 3-seater or sectional sofa, an 18 kg machine at a laundromat is the solution. The large drum allows covers to circulate freely, rinsing is thorough (50-60 liters of water), and the cycle finishes in under an hour. Check our article on laundry weight in the machine for better load estimation.

Drying: the critical phase

Drying is the stage where mistakes have the most impact — poor drying can cause shrinkage, musty odors, or permanent creases.

Air drying (recommended)

1. Lay flat if possible (on a drying rack, on a table covered with a towel). Hanging vertically on a line pulls the fabric downward under its own weight and can distort the cover.
2. Flip halfway through so both sides dry evenly.
3. Avoid prolonged direct sunlight on colored fabrics — UV rays fade surface pigments.
4. Drying time: allow 6 to 12 hours depending on the fabric and season. Linen dries faster than cotton.

Refit the cover while slightly damp

This is the key trick for a perfect fit. When the cover is still slightly damp (not wet — it should no longer drip), put it back on the cushion. Damp fabric is more pliable and stretches naturally to mold to the shape. As it finishes drying in place, the cover tightens perfectly without creases or pulling.

Tumble dryer: when it is allowed

If the label allows the tumble dryer (square with a circle symbol, one or two dots), use low heat only (one dot = 60 °C max). Remove the cover before it is fully dry and finish drying in place on the sofa. See our drying guide for more details.

Maintenance between washes

Washing the covers every 3 months is sufficient for normal use. Between washes, regular maintenance keeps things clean and extends the fabric’s lifespan.

Weekly vacuuming

Vacuum the covers weekly using the upholstery attachment (soft brush). Vacuuming removes dust, crumbs, pet hair, and surface dust mites. Use the narrow nozzle for seams and folds.

Fabric deodorizing spray

Between washes, neutralize odors with a homemade spray: 200 ml of water, 1 tablespoon of baking soda, 5 drops of lavender essential oil (optional). Mist from 30 cm away and let dry. The baking soda neutralizes odor molecules without masking the smell.

Cushion rotation

If your cushions are reversible, flip them weekly. Wear, fading, and stains distribute evenly across both sides, doubling the visible lifespan of the cover.

Temporary protection

For dinner parties or gatherings, drape a throw or temporary protective cover over the seats. It is easier to wash a throw than to remove an entire sofa set. Check our guide on washing a throw blanket.

Treating common stains on sofa covers

Mistakes to avoid

Non-removable sofa: the alternatives

If your sofa does not have removable covers, you cannot put the upholstery in the machine. Here are the surface cleaning methods.

Baking soda shampooing

Generously sprinkle baking soda over the entire sofa surface. Leave for 2 hours (overnight for stubborn odors). Vacuum thoroughly. The baking soda absorbs odors and moisture and loosens surface dirt.

Steam cleaning

A garment steamer or handheld steam cleaner disinfects the fabric without excessive wetting. Steam (100 °C+) kills surface dust mites and bacteria. Pass slowly over the entire surface, section by section. Ventilate the room afterward to remove moisture.

Spot cleaning

For an isolated stain, prepare a mix: 500 ml of warm water, 1 tablespoon of white vinegar, 1 tablespoon of dish soap. Apply with a clean cloth by blotting (never rubbing). Rinse with a damp cloth. Use a hairdryer at a distance to avoid watermarks.

Recommended wash frequency

The frequency depends on usage and environment:

• Every 3 months — standard use (adults, no pets)
• Every month — pets or young children
• Immediately — after a major stain (wine, urine, vomit)
• Weekly — surface vacuuming (not a full wash)

For a broader schedule, check our article on family laundry routines to work sofa cover washing into your plan.

At the laundromat: the solution for large covers

3-seater and sectional sofa covers consistently exceed the capacity of home machines. At the laundromat, 18 kg machines offer a drum large enough for the covers to circulate freely.

Why the laundromat is more effective

1. Drum volume — covers are not compressed, rinsing is thorough.
2. Water volume — 50 to 60 liters versus 40-50 liters for a domestic 8 kg machine. Detergent residue is better flushed out.
3. Suitable programs — 30 °C and 40 °C cycles with adjustable spin.
4. Time — a full cycle (wash + spin) at the laundromat takes approx. 35-45 minutes. You leave with clean, spun-out covers ready for drying at home.

Before heading to the laundromat, prepare your covers at home: remove them, pre-treat stains, close zippers, turn inside out. You will save time on-site. Check our guide for your first time at a laundromat.

Sources and references

• Laundry care label symbols: complete guide
• Laundry weight guide: estimation by item
• Preventing shrinkage in the wash
• Drying guide: by textile and method
• Wash a pillow and its cover in the machine
• Baking soda and laundry: uses
• ISO 3759 — Method for measuring dimensional shrinkage of textiles after washing
• AFNOR NF EN ISO 6330 — Domestic washing and drying procedures for testing textiles