Vehicle Magnetic Sign Size Calculator
Ensure proper adhesion and motorway stability with precision sizing. Input your flat door panel dimensions or choose your UK car or van model to verify aerodynamic clearance.
Note: Door dimensions can vary slightly across wheelbases (SWB/LWB) and facelift years. Always verify your own door panel with a tape measure.
Magnet Test
Vehicle magnets adhere to steel only. Test your panel with a fridge magnet first.
Flat Area Only
Avoid door handles, protective mouldings, deep creases, or panel seams.
Safe Clearance
Allow 20mm–30mm margin from edges. We provide rounded corners to resist 70mph airflow.
Magnetic Vehicle Signs UK
Magnetic vehicle signs are one of the most cost-effective and flexible ways to advertise your business on the move. Printed on heavy-duty 0.9mm (900 micron) motor-grade magnetic material, these signs stick securely to steel vehicle panels on cars, vans, and fleets without damaging paintwork. They can be easily removed and reused. This makes them ideal for contractors, tradespeople, driving instructors, delivery drivers, and small businesses.
At Printways, all magnetic vehicle signs are produced in-house using UV-resistant inks and protective lamination for long-lasting outdoor performance in British weather. We print from one pair upwards with no minimum order and offer fully custom sizes to perfectly fit your vehicle doors and panels.
Why Choose 0.9mm Magnetic Vehicle Signs?
Standard fridge magnets (0.4mm–0.6mm) are not suitable for vehicles. They fly off at speeds above 30mph. Our professional magnetic signs use thick 0.9mm motor-grade material with strong pull force (approx. 90 lbs per square foot), tested to stay secure at motorway speeds up to 70mph.
How to Measure Your Vehicle for Magnetic Signs
The most common mistake is ordering signs that are too big or overlap creases and trims. Always measure the largest fully flat steel area on your vehicle doors or side panels. Leave at least 2–3cm clearance from door handles, trims, panel gaps, and curved edges. Test your vehicle first with a normal fridge magnet. magnetic signs only work on steel, not aluminium, plastic or fibreglass panels.
Common Sizes | Best For | Orientation |
|---|---|---|
600mm x 300mm | Small cars & vans | Landscape |
600mm x 450mm | Standard van sides | Landscape |
800mm x 400mm | Large vans & estate cars | Landscape |
Custom Size | Perfect vehicle fit | Any |
Design Tips for Maximum Impact
Drivers have only 2–3 seconds to read your sign. Keep designs simple and high-contrast:
- Use bold, large fonts for your company name, phone number and website
- Limit to 4–6 words maximum
- High contrast colours (dark text on light background or vice versa)
- Include your logo if space allows
- Avoid clutter — less text = more impact
Indoor vs Outdoor Performance
Our magnetic vehicle signs are designed for daily outdoor use. They come with UV-resistant inks and optional matt or gloss lamination to protect against rain, road spray, and sunlight. For best results, remove signs once a week, clean both the magnet and vehicle surface thoroughly, and store flat when not in use. Never apply to newly painted vehicles (wait 90 days) or dirty panels.
Custom Magnetic Signs
Every vehicle is different. That’s why we offer fully custom magnetic vehicle signs made to your exact measurements. Whether you need square, rectangular, or irregular shapes, we can produce them quickly. Perfect for fleets, branded company cars, or unique van layouts.
Common Uses
- Tradespeople & contractors (plumbers, electricians, builders)
- Driving instructors
- Delivery and courier services
- Mobile beauty, pet grooming & cleaning services
- Estate agents and surveyors
- Fleet advertising for small businesses
Ordering Magnetic Vehicle Signs from Printways
Upload your design, choose quantity (sold in pairs), select size and finish. we will print, laminate and dispatch with care. All orders over £50 qualify for free UK delivery. Need help with design or measuring? Our team is happy to assist.
Looking for large format posters as well? Browse our full range of A0, A1, A2, A3 and 20x30 posters.
Magnetic Vehicle Signs — Frequently Asked Questions
What thickness are your magnetic vehicle signs?
All our magnetic vehicle signs are made from heavy-duty 0.9mm (900 micron) motor-grade magnetic material. strong enough to stay on at motorway speeds up to 70mph.
Will magnetic signs damage my vehicle paint?
No. When used correctly, magnetic signs do not damage paintwork. Always apply to clean, dry, flat steel panels and remove weekly for cleaning.
Do magnetic signs work on all vehicles?
Magnetic signs only stick to steel panels. They will not work on aluminium, plastic, fibreglass or composite body panels. Test with a fridge magnet first.
What sizes are available?
We offer standard sizes and fully custom sizes. Popular sizes include 600x300mm, 600x450mm and 800x400mm. Custom sizes are made to your exact measurements.
How should I design my magnetic car signs?
Keep it simple. Use large bold text for your company name, phone number and website. Use high contrast colours and avoid clutter. Drivers only have 2–3 seconds to read it.
How often should I remove the magnetic signs?
We recommend removing the signs at least once a week, cleaning both the magnet and vehicle surface, then drying fully before re-applying.
Do you offer custom shapes?
Yes. We can produce fully custom shaped magnetic vehicle signs to match your exact needs.
Are the signs weatherproof?
Yes. We use UV-resistant inks and offer matt or gloss lamination for extra protection against rain, road spray and sunlight.
What is the minimum order quantity?
Magnetic signs are sold in pairs. There is no high minimum. you can order just one pair.
Do you offer free delivery?
Yes. Free UK delivery is available on all orders over £50, including magnetic vehicle signs.
How long does printing take?
Standard production is 2–4 working days. Next-day and express options are available on request.
Can I get magnetic signs for both sides of my van?
Yes. Most customers order in pairs (left and right side). You can order any quantity.
How do I store magnetic signs when not in use?
Always store them fully flat in a cool, dry place. Never roll or fold them as this can damage the magnetic strength.
Can you design the signs for me?
Yes. Our design team can create professional magnetic vehicle signs from your brief or logo at a reasonable cost.
Need Help Sizing Your Vehicle Magnet?
Use our interactive UK vehicle clearance calculator below.
Magnetic Vehicle Signs
Select your options to get an instant price.
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Note:
- All delivery times are estimates.
- Orders to the Isle of Man, Northern Ireland, and parts of the Scottish Highlands & Islands may take an extra working day.
- Scottish deliveries may also be delayed if collected by DPD on our later service.
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Our Promise to You
Premium Quality
We use state-of-the-art printing tech and premium paper stocks to ensure every product meets the highest standards of quality.
Fast UK Delivery
With fast turnaround times and reliable UK-wide delivery, you can count on us to get your prints to you when you need them.
Expert Support
Our team of print experts is here to help you every step of the way, from choosing the right product to checking your artwork.
Complete Guide to Custom Printing
Ordering custom printed materials has never been easier. Whether you are a small business looking for fresh marketing print, or a large enterprise needing bulk commercial print runs, our online calculator ensures you get instant, transparent pricing. We pride ourselves on offering a wide variety of paper stocks, weights, and luxury finishes to make your project stand out from the competition.
How to Prepare Your Artwork
To ensure the highest quality print, please supply your artwork in PDF format. We recommend saving your files with the 'High Quality Print' preset. Here are a few essential tips for the perfect print:
- Bleed Area: Please include a minimum of 3mm bleed on all edges of your design. This ensures no white borders are left when we trim your product to the final size.
- Safe Zone: Keep all important text, contact details, and logos at least 3mm away from the trim edge.
- Resolution: All images and graphics should be supplied at 300dpi (dots per inch) for crisp, clear, and professional results.
- Colour Mode: Convert all RGB and spot colours to CMYK format before exporting your file to avoid unexpected colour shifts.
Understanding Paper Stocks & Finishes
Choosing the right paper stock can dramatically change the feel of your product. Here is a quick guide to our most popular options:
- Silk / Uncoated: A natural, non-reflective finish that is highly readable and easy to write on. Perfect for letterheads, forms, and elegant brochures.
- Gloss: A shiny coating that makes colours pop and images look incredibly vibrant. Ideal for flyers, posters, and photograph-heavy designs.
- Matt Lamination: A smooth, sleek finish that dulls reflections and adds a premium, tactile feel to business cards and luxury presentation folders.
- Spot UV & Foil: For maximum visual impact, add a glossy raised layer or metallic foil to specific parts of your design to draw the eye instantly.
Fast Delivery & Turnaround Times
We understand that business deadlines are critical. Our standard production times are clearly listed in the calculator options. Once printed, orders are carefully packed and dispatched via trusted overnight couriers to ensure they reach you safely and securely across the UK. You will receive a tracking link via email the moment your order leaves our production facility. It gives you complete peace of mind.