QR Code Stickers
Short answer
Size a QR sticker for the encoded data, module size, print quality and intended scanner or phone. Keep a clear four-module quiet zone on all sides, preserve contrast and test a printed sample at the actual reading distance. No universal 2 cm size guarantees a successful scan.
A QR code sticker has exactly one job: to scan on the first attempt. That sounds simple, but in practice codes often fail to read, and almost always for the same four reasons: too small, insufficient contrast, a lost quiet zone, and inversion (a light code on a dark background). This page addresses all four with concrete figures and describes how we test a code before printing, so a whole run does not turn out useless.
Key facts
- Minimum size
- Confirm by module size and actual scan testing
- Contrast
- Dark code on a light background
- Quiet zone
- Four module widths all round
- File type
- Vector (SVG, EPS, PDF)
- Testing
- Real scan before printing
- Material
- Vinyl (tables), paper (indoors)
- Lamination
- Matte may reduce reflections; test in actual light
- Quote
- Specify sticker dimensions, material, cutting contour, quantity and finishing.
Size and distance — how they relate
Overall QR size follows its symbol version and module size, plus the quiet zone. The encoded data, printing resolution and scanner capability matter alongside distance and lighting. Avoid a fixed distance-divided-by-ten rule as a guarantee. Use the intended phone or scanner to test a final-size printed sample in the actual setting.
- Confirm the final encoded link or data
- Keep a clear four-module quiet zone
- Select module size for printing and scanning
- Test final-size samples at the intended distance
Contrast, inversion and the quiet zone
A scanner reads a code through contrast: dark modules on a light field. Inversion — a light code on a dark background — works on some phones and not others, so we avoid it unless the design specifically demands it. The second critical element is the quiet zone: clear space around the code, four module widths wide. If the sticker edge or nearby text crowds the code, the scanner cannot tell where the code ends. That is the single most common reason an otherwise correct code fails to read.
- Dark code on light field — most reliable
- Inversion — does not work on every phone
- Quiet zone: four module widths all round
- Edge or text too close — scanning fails
Material and glare
Match the material and adhesive to the surface, cleaning and handling. Glare can interfere with scanning, so compare finish options under the actual lighting. Matte finish may help reduce reflections, but it cannot compensate for every size, contrast or data problem. Recheck the printed code after any protective finish.
QR code size by placement
| Placement | Scan distance | Sizing check | Material |
|---|---|---|---|
| Restaurant table | 20-30 cm | Test final code with intended scanner and distance | Vinyl, matte |
| Product packaging | 20-30 cm | Test final code with intended scanner and distance | Paper or vinyl |
| Indoor wall / poster | 50 cm | Test final code with intended scanner and distance | Paper |
| Shop window | 1 m | Test final code with intended scanner and distance | Vinyl or clear film |
| Outdoor advertising | 2 m+ | Test final code with intended scanner and distance | Laminated vinyl |
How It Works
- 1
Receive or generate the code
You send a finished vector code, or give us the link and we generate one.
- 2
Technical check
We verify size, contrast, quiet zone and module weight for the intended scanning distance.
- 3
Test scan
We scan the code on screen and then from a printed proof — it must read at both stages.
- 4
Printing and lamination
Printing on the chosen material, then matte lamination to avoid glare.
- 5
Final check
We spot-check the finished run by scanning with at least two different phones.
Frequently Asked Questions
I have no code — can you create one?
Can the code use brand colours?
Can a logo sit in the middle of the code?
Why does my table code fail to scan?
Would a dynamic QR code suit you?
The run is printed and the code does not work — what now?
Related Services
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