QR codes on signs
Signs are permanent and information isn't. A QR code on a sign can carry the part that changes (hours, routes, detailed instructions, translations) while the sign itself stays put for years.
Signage is also where tampering happens. For signs in public places, use a custom domain and inspect the codes regularly, so nobody can cover them with a look-alike sticker.
What to link from QR codes on signs
Wayfinding
Directional signs that open a map with the route to each destination.
Information boards
Parks, heritage sites and campuses that link to detail, audio and translations.
Opening hours and notices
Door signs that open current hours, holiday closures and contact options.
Safety and instructions
Safety signs that open the full procedure or an emergency contact page.
Which QR code to use
Static codes are free and need no account, but can't be changed after printing. Dynamic codes and hosted pages can be edited at any time, count every scan, and keep working on every plan, even if you cancel.
Business page
Opening hours, address with a map link, contact buttons and amenities.
Current hours, closures, contact buttons and the address for door signs.
Build it in the dashboardGoogle Maps QR code
Opens the destination in Google Maps from a wayfinding sign.
Open the Google Maps generatorAudio page
An audio player with cover art and a playlist.
Audio guides for information boards, playable in the browser.
Build it in the dashboardPDF page
An uploaded PDF people can read in the browser or download.
Full procedures behind safety signs, replaced when they're revised.
Build it in the dashboardHow big to print it
| Where people scan | Distance | Minimum code width |
|---|---|---|
| Door sign | 80 cm (31 in) | 9.3 cm (3.7 in) |
| Information board | 1.5 m (5 ft) | 17.4 cm (6.9 in) |
| Directional sign | 3 m (10 ft) | 34.8 cm (13.7 in) |
For a dynamic short link such as https://qrdx.dev/q/aB3dE5f at error correction Q, without the blank margin. Static Wi-Fi, vCard or long URL codes hold more data and need to be larger. Check yours with the print size calculator and the scan checker.
Placement tips
- Mount codes between 1.2 and 1.5 m, so they're reachable for wheelchair users and children.
- Outdoors, use UV-resistant inks, aluminium composite or engraved panels, and an anti-graffiti laminate.
- Inspect public signs for stickers placed over the real code; a printed custom domain helps people spot fakes.
- Use error correction H on signs likely to get scratched or dirty.
Call-to-action copy
A code with a reason to scan beside it gets more scans than a bare code. Lines to print next to yours:
- Scan for the route
- Opening hours and holiday closures
- Listen to the guide
- Full safety procedure
QR codes on signs: FAQ
What height should a QR code on a sign be?
Around 1.2 to 1.5 m to the centre of the code. That works for most adults, children and wheelchair users without bending or stretching.
How long does an outdoor QR code sign last?
With UV-stable inks and a protective laminate, years. The code itself never expires; dynamic QRdx codes keep redirecting on every plan.
How do I stop people tampering with QR codes on signs?
Use tamper-evident materials, print your short-link domain next to the code, use a custom domain so the link preview is recognisable, and check signs regularly.