Custom Car Door Magnets

Material and How Car Door Magnets Hold On

The sign is made from a flexible magnetic sheet with a printed vinyl face laminated on top. The magnet is thick enough to grip firmly at normal road speeds, yet bendy enough to follow the gentle curve of a car door. The printed face is protected against rain, road spray and sunlight, so colours stay bright through daily use.

Magnets only stick to steel. Many modern cars use aluminium or composite panels on some doors and bonnets, so test your doors with a fridge magnet before ordering. Deep body creases, plastic trims and door handles also get in the way, so the sign should sit on the flattest area of the panel, usually below the window and between the wheel arches.

If your car has steel doors but a crease runs through the middle, you can still use a magnet. Choose a slightly shorter sign that sits wholly above or below the crease, or ask for a custom shape that follows the line. A sign that lies completely flat will always hold better than a larger one that bridges a fold in the metal. The printed face uses the same laminated vinyl as our laminated vinyl stickers, so it copes with rain and sun.

Sizing a Sign for Your Door

Measure the flat area of the door, not the whole door. Run a tape measure across the panel and note where it starts to curve or where a crease line or handle interrupts it. That gives you the largest size that will lie flat. A sign that bridges a crease will lift at the edges and can catch the wind.

Most cars take a sign somewhere between A3 and a wide landscape panel. Vans offer more room, so larger magnets fit easily on sliding doors and rear panels. If you drive different vehicles, choose a size that fits the smallest door so one set works everywhere. Rounded corners are standard because they are less likely to peel up at speed. If the flat area is small, a bumper sticker for the rear may carry the phone number better.

Design for a Moving Target

People see a car door for a few seconds at most, often from across a road. Keep the message to three things: what you do, your name and how to reach you. A phone number in large, heavy type matters more than a long list of services. High contrast colours, such as white on a dark background or black on yellow, can be read from much further away than subtle tones.

Your logo should be big enough to recognise, but not at the expense of the number. A web address is useful if it is short. Avoid fine script fonts and thin outlines, which disappear at a distance. The free design proof shows your artwork at its real size so you can judge readability before printing.

Think about both sides of the car. Most customers order a matching pair so the sign reads the right way on each door, and some add a smaller rear magnet with the phone number alone, which is what the driver behind you sees in traffic for longest. A QR code sticker inside the cab window can carry the booking link that does not belong on a moving sign.

• One clear trade or service line
• Business name or logo
• Large phone number in heavy type
• Short web address or social handle
• High contrast colour pairing

Looking After Your Magnets

A little care keeps a door magnet working well. Apply it to a clean, dry panel so grit does not get trapped underneath. Take it off once a week, wipe both the magnet and the paintwork, and let them dry before refitting. This stops moisture sitting under the sign and protects the paint.

Store magnets flat or on a fridge or filing cabinet rather than rolled tightly, and never fold them. Remove them before going through an automatic car wash, and if the car will be parked in strong sun for a long time, lifting them off now and then helps the paint underneath age evenly with the rest of the door. Window messages that must come off cleanly are better as static clings for glass than adhesive vinyl.

Test a Fridge Magnet on the Door First

Before ordering door magnets, do two quick checks on the vehicle itself. Press a fridge magnet against the flattest part of each door to confirm the panel is steel, because many modern doors and most bumpers are plastic or aluminium. Then measure the flat area between the creases, handle and trim, since a sign that overlaps a body line lifts at speed. Most vans take a sign around 600 x 300 mm; cars are often closer to 450 x 250 mm. Keep the phone number the largest element, because a sign is read in the seconds a van sits at lights, and reserve finer detail for permanent car stickers on the rear.

Send the panel measurements, the number of vehicles and the wording, and a custom quote comes by email within one working day. The free proof shows the sign at scale with rounded corners marked. Production takes 4 to 7 working days once approved, magnets ship flat by tracked courier to UK mainland addresses, and a misprinted or damaged sign reported within 10 days is reprinted or refunded.