How do you wash a sofa cover without shrinking it? Wash cool at 30°C on a gentle cycle with mild detergent and no fabric softener, then reshape it while damp and dry on low heat or flat. Heat is the only real cause of shrinkage, so keep both the wash and the drying cool.
The 30°C method in one look
A stretch cover only shrinks when it meets heat, in the wash or in the dryer. Keep the temperature down and the fit comes back exactly as it went in. Here is the full routine, step by step, with the reason behind each choice.
| Step | What to do | Why it matters |
|---|---|---|
| Wash cool | Set the machine to 30°C or cold | Cool water cleans without tightening the weave or harming the stretch thread |
| Gentle cycle | Choose a gentle or delicate setting | Slower agitation protects the seams and the surface of the fabric |
| No softener | Use mild detergent only, skip fabric softener and bleach | Softener films the fibres and elastane, so the cover slowly loses its grip |
| Reshape while damp | Refit the cover slightly damp and smooth each panel by hand | Damp fabric moulds to the frame and dries into a crease-free, tailored fit |
| Dry low or flat | Air-dry flat, or tumble microfibre on the lowest heat only | High heat is the fastest way to shrink the weave and cook the elastane |
Why covers shrink (and why yours doesn't have to)
A stretch cover is a woven face fabric with a fine thread of elastane running through it for the stretch. Both react badly to heat. Hot water tightens the weave and the panels pull in, while high dryer heat degrades the elastane so the cover comes out slack and stops gripping.
Cool water leaves both alone. The dirt lifts, nothing contracts, and the fit holds. Almost every shrunken cover is simply a cover that met heat somewhere. Get the temperature right and the rest is easy. For everything beyond washing, our guide to general sofa cover care covers drying, fit and everyday upkeep.
Do and don't
Do:
- Wash cool at 30°C or on the cold setting, every time.
- Use a gentle cycle and a mild detergent.
- Wash the cover alone or with soft items like towels.
- Reshape and refit while the cover is still slightly damp.
- Air-dry flat whenever you can.
Don't:
- Don't wash hot, heat is the one thing that shrinks a cover.
- Don't use fabric softener or bleach.
- Don't tumble on high heat, and never dry a cover bone-dry.
- Don't iron stretch fabric, the heat can scorch it.
- Don't wash with zips, buttons or rough fabrics that can catch the surface.
Follow those two lists and you can wash as often as you like without wearing the cover out. Ready to start fresh? Shop machine-washable sofa covers and treat the new one cool from day one.
Machine-washable covers to shop
These are the covers Covaba customers reach for most, and every one is built to be washed cool at 30°C and reshaped damp. Tap any cover to choose your size.
Prefer to see everything? Browse the full sofa covers collection.
machine washable
while damp for the fit
stretch, tailored fit
fabric softener
How often should you wash it?
Often enough to keep it fresh, rarely enough that it is never a chore. A cover on a main, daily-use sofa benefits from a wash every several weeks, sooner in a busy household, longer for a guest-room or reading-corner sofa. Because the wash is cool and gentle, frequent washing does not wear the cover out, the fabric is built to be refreshed this way.
Frequently asked questions
Can I tumble-dry a sofa cover?
A soft-touch microfibre cover can take a low tumble dry, but only until it is barely damp, never bone-dry, and never on high heat. Linen-look and boucle-style covers should always air-dry to protect their texture.
Will a stretch cover shrink in the wash?
Not if you keep it cool. Wash at 30°C on a gentle cycle and dry on low or flat, and the weave and elastane stay their original size. Hot water and high dryer heat are the only things that shrink a cover.
How often should I wash my sofa cover?
Every several weeks for a daily-use sofa, longer for one that sees gentle use. Wash on rhythm rather than a fixed number: when the cover feels less crisp or the colour looks flat, it is time.
Do I need to iron a sofa cover?
No. Refit the cover while it is still slightly damp and smooth each panel by hand, then let it finish drying on the sofa. The frame acts as a mould, so light creases relax out. Avoid ironing, which can scorch stretch fabric.
Should I use fabric softener?
No. Softener coats the fibres and elastane in a film that gradually reduces the stretch, so the cover slowly loses its grip. Use a mild detergent on its own.
Keep reading
- How to stop a sofa cover slipping or looking baggy
- How to measure a sofa for a cover: simple size guide