QR code guides: set up, design, place, print and test with confidence

Begin with the action the person should take after scanning. It might be a WhatsApp enquiry, an existing quote form, booking page, portfolio, payment provider or review page. The purpose should match the surface and customer moment.

QR Trade is the option for a work-van scan that opens a pre-filled WhatsApp quote enquiry. Other destinations should be described as links to the business’s own existing services, not as product features.

Use a short, concrete call to action beside the code: “Scan to start a WhatsApp quote enquiry” is clearer than “Scan me”. Tell people what they will open so they can make an informed choice.

Keep the destination and wording in step. If the link changes, update the printed instruction or replace the code rather than leaving an inaccurate prompt in circulation.

Keep the code square, undistorted and surrounded by a clear margin. Use strong contrast and do not cover it with text, logos, decorative effects or a busy background. Make the call to action legible at the intended viewing distance.

Consider real conditions, including glare, shadows, dirt and the texture of the final surface. A design that looks good on screen may not be equally clear when printed small or applied to a curved panel.

Put the code where someone can pause, see the instruction and hold a phone comfortably. On a vehicle, avoid seams, handles, fuel flaps and heavily curved or reflective areas. It must only be scanned when the vehicle is safely parked.

For vehicles, trailers, livery and fleet consistency, use the dedicated vehicle-signage guide. For a van-specific WhatsApp enquiry route, see the work-van page.

Share the final artwork with the printer or signage supplier and ask them not to stretch, crop or alter the code. Review a proof in the context of the intended surface, especially where trims, folds, windows or panel lines could interrupt it.

For sticker-focused considerations, visit the QR stickers for vans page. Check a finished sample rather than assuming the digital proof reflects every installation condition.

Test after printing or fitting, not only on a computer. Scan with more than one phone in normal light and shade, then confirm the destination, the explanatory text and the next step all make sense.

For example, set up a QR Trade code in the builder, fit it on an unobstructed parked-van panel, scan it from a sensible pedestrian distance, and verify that WhatsApp opens with the intended pre-filled quote enquiry. Correct issues before wider use.

Recheck codes when contact details, destinations or printed signage change. A scan that reaches an old page or number creates avoidable friction. Keep a simple record of where each code is used and what it is meant to do.

Do not assume that every QR code provides scan tracking. If measurement is important, confirm the capabilities and privacy implications of the specific destination or service before making claims about reporting.

There is no single minimum size that works on every vehicle. The right size depends on viewing distance, phone camera, lighting, print quality and how complex the encoded link is. As a practical starting point for a parked work van, discuss a code around 100–150 mm square with the signwriter, then test it at the actual distance people are expected to scan from. Use a larger code when it must be read from farther away.

Test a full-size printed proof on the vehicle before approving the final artwork. Try more than one current phone in daylight, shade and typical wet or reflective conditions, from the intended pedestrian position. A scan from a screen or close-up proof does not validate the finished sign.

The wording beside the code should tell the customer what opens and what they can do next. These examples suit a QR Trade code that opens a pre-filled WhatsApp quote enquiry:

• Plumber: “Plumbing problem? Scan to request a quote on WhatsApp.”
• Electrician: “Need electrical work? Scan to describe the job on WhatsApp.”
• Builder: “Planning building work? Scan to start a WhatsApp quote enquiry.”
• Roofer: “Roof repair or replacement? Scan to request a quote on WhatsApp.”
• Mobile mechanic: “Vehicle problem? Scan to tell us what you need on WhatsApp.”

Change the instruction if the code opens something else. For example, use “Scan to view recent projects” for a portfolio and “Scan to book online” only when the destination is an existing booking service.

Agree the following before artwork is printed, cut or fitted. This gives the business owner and signwriter a shared approval record:

QR Trade creates the branded QR sticker pack and the scan journey that opens a pre-filled WhatsApp quote enquiry for the business. QR Trade prints and dispatches the sticker pack; delivery timings are shown during the ordering journey and may depend on approval and delivery conditions.

QR Trade does not design or install a full vehicle wrap, apply vehicle graphics, choose the final position on a customer’s vehicle or certify an installation. A vehicle signwriter or wrap firm should assess the surface, artwork, size, placement and fitting. Share this guide and the handover checklist with them before work begins.