Choosing the right size magnetic vehicle sign is important if you want your branding to look professional, stay readable and fit properly on your car or van. A sign that is too small may not stand out, while one that is too large may not sit correctly on the vehicle panel.
The best size depends on the flat metal panel height and width, the type of vehicle you drive and where you want the magnetic sign to be placed. Use the tool below to get a recommended size before ordering.
Sign sizing guide
Measure the flat panel on your vehicle for the most accurate result, or look your vehicle up by make and model for a sensible starting size.
This gives a sensible UK size guide only. Different trims, body shapes and door designs can change the usable flat panel area — measure your own vehicle for an exact fit.
Magnetic vehicle signs are designed to turn your car or van into a mobile advert without using permanent vinyl graphics. They are ideal for tradespeople, delivery businesses, mobile services, estate agents, driving instructors and anyone who wants removable vehicle branding.
However, the size needs to be practical. The magnet should sit flat against the vehicle with enough space around the edges. If the sign overlaps trims, curves, handles or panel gaps, it may not fit correctly or look as clean.
For cars, the most suitable magnetic sign sizes are usually smaller and easier to fit on the door panel.
Popular car magnetic sign sizes include:
A smaller sign can work well if your design is simple, such as a logo, phone number and short service description. If you want your sign to be readable from further away, choose the largest size that fits safely within the flat panel.
Vans usually have more usable space, especially on the side panel. This makes them ideal for larger magnetic signs with stronger visibility.
Popular van magnetic sign sizes include:
For vans, avoid placing the magnet across sliding door gaps, panel joins or deep ridges. A slightly smaller sign that sits flat will usually look better than an oversized sign that does not fit correctly.
Magnetic vehicle signs are suitable for many cars and vans, but they need a compatible surface. They should be fitted to a clean, dry, flat steel panel.
They may not be suitable for:
If the magnet does not sit flat across the whole surface, choose a smaller size or a different position on the vehicle.
Before ordering, it is worth checking a few simple things:
Make sure your chosen size leaves a safe gap around the edges. Clean the vehicle panel before applying the magnet. Remove the sign before using an automatic car wash. Also remove and clean behind the magnet regularly, especially after rain or long journeys.
Good care helps your magnetic signs stay clean, presentable and ready to reuse.
Once you’ve found the right size, you can order high-quality magnetic vehicle signs from us at great online prices, with exceptional print quality and a professional finish.
Our last working day will be Friday, 19th December 2025 and we will reopen on Monday, 5th January 2026.
We encourage you to check product lead times on our website to ensure your orders can be delivered before our closure.
Take advantage of our seasonal promotions and place your orders now. We’ll process them promptly upon our return.
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