What does Dry Flat mean?
Quick Answer
The dry flat symbol (a square with a single horizontal line in the centre) means lay the garment flat on a clean surface to dry β do not hang it, as hanging will cause the item to stretch under its own wet weight. It is essential for knitwear, chunky sweaters, cashmere, and other loosely knitted or heavy fabrics that lose their shape when suspended vertically.
Also known as: lay flat to dry symbol, horizontal line in square, flat dry symbol, dry flat sign, lay flat symbol
Important Warning
Hanging will cause stretching
Detailed explanation
The dry flat symbol (a square with a horizontal line in the centre) specifies that the garment must be laid horizontally on a flat surface to dry β not hung, not placed in a dryer, and not hung over a line or radiator. This instruction is critical for garments that will stretch permanently under their own wet weight if hung vertically. Wool, cashmere, and loosely knitted structures absorb large amounts of water and become very heavy when wet, causing significant elongation if suspended at any point. The instruction to dry flat is often misunderstood as a mild suggestion rather than a structural requirement β it is not.
How to follow the Dry Flat symbol:
- 1
Prepare the drying surface before removing the garment from the wash
lay a clean dry bath towel flat on a table, bed, or clean floor
- 2
Lift the wet garment carefully from the machine or basin, supporting its full weight at all times; do not hold it by one corner or edge while wet
- 3
Remove excess water by rolling the garment in the prepared towel and pressing firmly
never wring; then unroll and transfer directly to a fresh flat surface
- 4
Use your hands to reshape the garment immediately to its original dimensions: set the shoulder width, chest width, sleeve length, and hem
- 5
For ribbed cuffs, hems, and neckbands: gently stretch the rib to its correct wearing size
rib tends to dry tighter than intended if left unset
- 6
Flip the garment every 2β3 hours to allow the underside to dry; moisture trapped beneath slows drying and can cause mildew in thick fabrics
- 7
Use a mesh drying rack (elevated above the surface) if available
air circulates both above and below the garment, drying it faster and more evenly
- 8
Do not move the garment to hang it up "just to finish drying"
keep it flat until completely dry
When does this symbol appear on care labels?
- For all woollen knitwear β jumpers, cardigans, jerseys, and woollen dresses
- For cashmere and merino wool items, which are particularly prone to stretching when wet
- For chunky or heavily knitted garments regardless of fibre content
- For loosely crocheted items and macramΓ©
- For any item that has previously stretched when line dried
Tips and Best Practices
- Prepare the drying surface before washing: lay a clean dry bath towel flat on a table, bed, or floor
- Remove excess water by rolling the garment in the towel and pressing firmly along the length β never wring; then unroll and transfer to the flat surface
- Use your hands to reshape the garment to its original dimensions immediately: set the shoulders, chest width, sleeve length, and hem
- Flip the garment every few hours to allow the underside to dry β moisture trapped beneath slows drying and can cause mildew in thick fabrics
- A mesh drying rack (elevated above the surface) is better than a solid surface β air circulates both above and below the garment, drying it faster and more evenly
- For ribbed cuffs and hems, stretch the rib to its correct wearing dimensions before leaving to dry β rib tends to dry tighter than its intended size if left unset
What happens if this symbol is ignored
Hanging a dry-flat item even briefly while wet causes permanent stretching. A jumper hung from the shoulders while wet dries with elongated sleeves, a drooping neckline, and a lengthened body. Wool and cashmere cannot be effectively un-stretched once dry β the only repair is careful wet-reshaping, which requires rewetting the entire garment.
Common mistakes to avoid
- Hanging the garment "just for a moment" while preparing the drying surface β even a few minutes of hanging while wet causes visible stretching in fine knitwear
- Not reshaping the garment before leaving it to dry β leaving it in a crumpled heap results in permanent fold creases
- Drying on a wooden or metal surface that transfers marks β always use a clean towel or a mesh rack
- Not flipping the garment during drying β the underside stays damp much longer and can develop mildew in thick woollen fabrics
Common Materials
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Frequently Asked Questions
Related Drying Symbols
Tumble Dry Normal
Tumble dry at normal/high heat setting
Tumble Dry Low Heat
Tumble dry on low heat setting only (one dot)
Tumble Dry Medium Heat
Tumble dry on medium heat setting (two dots)
Tumble Dry High Heat
Tumble dry on high heat setting (three dots)
Tumble Dry No Heat
Tumble dry with no heat - air fluff only
Do Not Tumble Dry
Do not use tumble dryer - air dry only
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