Current sizes, ratios, durations, file limits, and text limits for Digital out-of-home placements. Specs change several times a year; confirm against the platform's documentation before production.
| Element | Specification |
|---|---|
| Common ratios | 16:9 landscape, 9:16 portrait; venue-specific sizes vary widely |
| Duration | 6 to 15 seconds per loop slot; static or motion depending on venue |
| Text | Large type, high contrast, 7 words or fewer; no sound in most venues |
Build client-approval mockups at these dimensions with the free ad mockup generator. Terms are defined in the creative section of the glossary.
Cite this page:
Agency Echelon. "Digital out-of-home ad specs." Agency Echelon Reference, reviewed September 2026. https://agencyechelon.com/reference/specs/digital-out-of-home/