Warning sign - yellow triangle
Flammable signs
A flammable sign warns that something nearby can catch fire easily. These printable versions use the yellow warning triangle with a black flame, in 'Flammable', 'Highly flammable', 'Flammable liquids', 'Flammable gas' and 'Flammable store' wordings, plus a keep-flames-away version and a black-and-white text option. They are workplace warning signs, not the diamond hazard labels that go on chemical containers. Each sign downloads in A5, A4 and A3, portrait and landscape.
Flammable sign
Sign text: "Flammable". PDF, 13 KB. A5, A4 or A3, portrait or landscape.
Buy a durable version
Rigid plastic, aluminium or self-adhesive flammable signs, ready to put up. The pictures are our own free designs, not the Amazon products.
Flammable warning sign rigid plastic
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Highly flammable sign self adhesive
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Flammable liquids store sign
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Choose your wording
7 versions. Each one downloads as a PDF in A5, A4 or A3, portrait or landscape.
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Highly flammable
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Flammable liquids
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Flammable gas
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Flammable store
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Flammable - keep flames and heat away
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Flammable - text only (yellow)
Download all 7 signs
Every wording, size and orientation in one ZIP file, 515 KB.
Print tips
- Print at "actual size" or 100%, not "fit to page", so the margins stay even.
- Use thicker paper or card (160gsm or more) if the sign will be handled.
- For outdoor or long-term use, laminate it or buy a rigid version.
Where to use it
- Doors of stores and cabinets holding paint, solvents, fuel or aerosols
- Workshops and garages
- Gas bottle storage areas
- Kitchens and utility rooms with gas appliances
- Outside buildings that hold flammable stock
Questions
What does a yellow triangle with a flame mean?
It is a warning sign: something flammable is present. Warning signs are normally a yellow triangle with a black border and symbol.
Is this the same as the hazard diamond on chemical labels?
No. The red-bordered diamond with a flame is a chemical labelling pictogram and has its own rules. These triangle signs are workplace warnings.
Should I choose 'flammable' or 'highly flammable'?
Use the wording that matches the product label and your risk assessment.
Related signs
Fire Safety Signs
No Smoking / Smoking Signs
Warning Signs
Hazard Signs
Gas Signs
Prohibition SignsWarning class. A yellow triangle with a black edge warns of a hazard. All fire safety signs