Artwork For Your Custom Magnets

Have Us Design It

Simply provide your ideas, mock-up, logo, or any completed artwork you may have. Our professional, in-house graphic artists will design your magnet free of charge and send a proof.

No original logo artwork files? No worries.
Our Creative Department expertly recreates logos with precision and care.

Large Car Door Magnets 12x18

Made in USA
SKU: 10R-12x18 OD
Please confirm that a magnet will stick to your vehicle's surface prior to ordering.
Outdoor:
Vehicles, mailboxes, equipment, exterior metal doors, refrigerators, filing cabinets, lockers, toolboxes, whiteboards, appliances; any smooth, magnet-receptive metal surface.
Ships about 5-7 Business Days after art approval & payment;  transit time excluded. Notify us upon order placement of any in-hand date (Customer Service approval required). Contact us for assistance: sales@magnets.com
No extra cost

Compatible file extensions to upload: jpg, ai, eps, pdf, png, psd, docx

Compatible file extensions to upload: jpg, ai, eps, pdf, png, psd, docx

Compatible file extensions to upload: jpg, ai, eps, pdf, png, psd, docx

Compatible file extensions to upload: jpg, ai, eps, pdf, png, psd, docx

Compatible file extensions to upload: jpg, ai, eps, pdf, png, psd, docx

Compatible file extensions to upload: jpg, ai, eps, pdf, png, psd, docx

  • FREE Set Up
  • FREE Custom Design
  • FREE Proofs
  • Pay After Approval
Product Description
These 12x18 car outdoor magnets are a perfect size for most vehicles and an ideal way to advertise your business while your out on the road. Our UV resistant inks ensure the colors don't fade and stay bright for years. Order in confidence knowing you're getting an extra thick 30 mil magnet, brilliant full color UV resistant inks, a custom design and our 100% low price guarantee. Simply send us your artwork, information or business logo (If available) and our in-house graphic artists will begin working on your large car door magnets free of charge!
Artwork Guidelines

We can accept your art in virtually any format. The following is a guideline for customers that have prepared art. If you do not have finished art, please contact us and our designers will put together a magnet design that meets your needs.

Guidelines:

  • The preferred file type is .AI, .PS, PDF, .EPS or any other editable format. JPEG's are acceptable but must be 300 dpi and fit to our printing specifications.
  • Please ensure that no text, logos or essential images are placed within 1/8 of an inch from the cut edge of your magnet.
  • Please convert all colors to CMYK
  • Please convert all fonts to curves/outlines
  • All bitmaps (JPG etc) should be supplied at a resolution of no less than 300 dpi to achieve the best print quality.
  • You will always receive a proof for your approval before going into production. We will work with you until you get exactly what you want.
Additional Information

Outdoor Magnet Care Instructions and Disclaimer

The magnetic side of the product must be applied to a metal alloy surface. Many modern vehicles are made with more plastic than metal, which may prevent a magnet from sticking to the intended surface. To ensure maximum adhesion, magnets should reach room temperature prior to application to the metal surface. Prior to affixing the magnet to a vehicle or other outdoor surface clean the area with mild detergent and wipe with a soft cloth or allowing it to dry. Be certain that paints, clear coats and waxes are cured. Make sure the entire magnet is flat against the metal surface. Do not place over protrusions (molding, decals, pin striping, etc.) or concave areas. Ensure there are no air pockets. For optimal care, we recommend removing and cleaning the magnet and the surface to which it will be adhered to every week, as well as after exposure to rain, snow, or ice. Magnets must be removed prior to washing the vehicle. There is no warranty expressed or implied against loss of magnets or damage to vehicle surfaces, as the factory has no control over how magnets are cared for, altered, stored, and/or used, or the surface to which the magnets are applied. The lifespan of outdoor promotional magnets depends on factors such as the quality of the materials, the environment, and how well they are maintained. Generally, high-quality outdoor magnets can last anywhere from 1 to 3 years when exposed to weather conditions. However, regular cleaning and proper care such as removing the magnet in extreme weather or after rain fall can help extend their lifespan. Magnets that are left on vehicles for long periods without maintenance may experience fading, loss of adhesion, or damage to both the magnet and the surface it's applied to.

Product Details
More Information
Product NameLarge Car Door Magnets 12x18
SKU10R-12x18 OD
Weight2.000000
UseOutdoor

What We Do

Place Order & Upload Art

Select your product, submit your details,
and upload your artwork files or request
professional design assistance.

Artwork Design Approval

Our team prepares your artwork and sends a digital proof for approval.

Production & Quality Control

Manufacturing begins (about 5-7 business days) followed by quality inspection.

Packing & Delivery

Secure packaging, courier handover,
tracking shared and delivery to you.

Product Reviews

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5/5 Based on 2 reviews
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You're reviewing: Large Car Door Magnets 12x18
Your Rating
Quality
100%
Verified Buyer
Lainie
7/18/26
Great quality, beautiful work, very reasonable prices!!!! Will be using again!!!
Customer Service Reply:
Thank you for your kind words! We're so glad you were happy with the quality, craftsmanship, and value of your order. We truly appreciate your support and look forward to working with you again!
Quality
100%
Verified Buyer
Nicolette
2/24/26
Thank You Jen! You're the best!!!!! (and anyone else who is involved, thank you!) Someone give her a raise!
Customer Service Reply:
Thank you so much for your kind words! We are happy to hear that Jen and the team made such a positive impact. We will definitely pass along your praise. Your support means the world to us. Thank you again for sharing your experience.
Frequently Asked Questions
How do I place an order for magnets on your website?
Just follow these three easy steps to place your order for magnets:Step 1: Select your magnets according to:Size: Compare prices between different sizes and quantities. Type: choose from calendar magnets, business card magnets, save the date magnets, outdoor magnets, extra strong magnets, picture frame magnets, etc. Shape: Reinforce your message with a shape that highlights your business or organization. Design: Select from hundreds of magnet designs from our gallery, or provide your own design and art.  Step 2: Select quantity, provide design instructions and upload any art you may have.Step 3: Safely & securely checkout. Payment is NOT required until your design is approved!
What are Custom Car Magnets?
Custom car magnets are durable, weather-resistant, and removable magnetic sheets, usually 30 mil thick, designed to stick to the metallic surface of a vehicle for mobile advertising and branding. They offer a flexible, affordable alternative to permanent decals, allowing for easy, temporary branding of cars, trucks, or vans. They feature customized text, logos, or images.
What do your prices include?
The products on our website are all inclusive with the exception of shipping charges, postage for mailer products, and copy change fees for multiple pieces of art using a quantity price break. Artwork, set-up, printing, digital proofs, and consultative customer service are all FREE! Special order items that require a custom quote may incur additional with regard to custom dies, special materials/adhesives, coatings, special inks, etc.
Where can I order custom magnetic signs for cars or trucks online in USA?
Magnets offers custom magnetic signs for cars, trucks and other vehicles that can be personalized with your business name, logo, and contact info. We have a variety of sizes and designs to choose from.
What's the minimum order quantity for bulk car magnet signs?
Minimum quantities vary by size. Many businesses start with pairs for two-door advertising or small bulk orders of 4-10 sets. Bulk pricing improves at higher volumes. Contact us for specific pricing tiers and volume discounts based on your fleet size.
Can I order large magnetic signs for trucks in custom sizes?
Yes. Custom sizing is available for box trucks, delivery vans, trailers, and commercial vehicles requiring specific dimensions. Contact us with your vehicle specifications and design requirements for custom sizing options and pricing.
How long do magnetic car signs last outdoors?
Most durable magnets last 1–3 years outdoors, depending on weather exposure and maintenance, as they provide high-quality magnets.
Are magnetic signs better than permanent car graphics?
Magnetic signs are removable, reusable, and affordable, making them ideal for temporary or flexible vehicle advertising. Permanent car graphics provide long-term branding but cannot be easily removed. Many small businesses prefer magnetic signs because they are easy to apply and can be used on different vehicles.
What size magnetic sign is best for car doors?
Popular sizes include 12" × 18", 12" × 24", and 18" × 24", which provide good visibility while fitting most vehicle doors.
Are magnetic car signs safe for vehicle paint?
Yes, it is safe. Magnets.com provides high-quality magnets attached without adhesive and can be removed without damaging the paint when properly maintained.
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