Specs
Designing your billboard.
COMSTOR Outdoor inventory comes in three standard sizes. Build files at these reducible dimensions and your art will land crisp, on-brand, and on time.
Three media sizes
Pick the format. Match the dimensions.
JPEG and PDF are universal — every design tool exports them, both survive email and upload, and a flattened JPEG protects against missing fonts.
6' × 12'
Poster
Our most affordable static option — perfect for neighborhood and corridor messaging.
Design at
72" × 144" @ 100% (or scaled multiples)
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8' × 20'
Medium Bulletin
Larger canvas, broader read distance. Common on county and connector roads.
Design at
96" × 240" @ 100% (or scaled multiples)
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10' × 24'
Bulletin
Standard COMSTOR bulletin — high impact for highway and arterial corridors.
Design at
120" × 288" @ 100% (or scaled multiples)
View full diagramSupported file types
What we accept for production.
COMSTOR Outdoor truly wants the finest graphic quality and visibility for your campaign. These are the file types we've found work best for outdoor production:
.psd Photoshop
Rasterized at 300 dpi @ 100% scale (or proportional reduction).
.jpg Flattened raster
Rasterized at 300 dpi @ 100% scale. Safest format — fonts stay locked, file is small.
.tif TIFF
Rasterized at 300 dpi @ 100% scale. Preserves quality but produces large files.
.ai Adobe Illustrator
Vector files preferred for typography-heavy designs and logos.
.pdf PDF
Universal vector + raster container. Embed fonts before exporting.
.eps Encapsulated PostScript
Vector format for logos. Convert text to outlines before submitting.
Working with the COMSTOR design team?
Design is included with every billboard contract. Email artwork or assets to your sales rep and our in-house team handles layout, scaling, and proofing — no extra cost.
Send to the teamDesign tips
Six seconds. Then they're gone.
Drivers see your board at 55 mph. Pre-test every design against the rules below before sending it to production.
Do
Maximum 7 words
Six is better. Less is more. Your billboard is a hook, not a brochure.
Don't
Cram every benefit
If a driver can't read it in three seconds, it doesn't exist.
Do
High contrast
Dark text on light backgrounds, or vice versa. Avoid same-luminance color pairs.
Don't
Use script or thin fonts
They blur at distance. Stick to bold, geometric sans-serifs.
Do
Bleed your background
Extend art 2" past the trim on all sides — saves you from a white-edge install.
Don't
Forget the CTA
Phone, web, exit number, or store address. Give them ONE thing to do.