AI Advertising · 6 min read

Short-Form Video Ad Planning for TikTok, Reels, Shorts and Meta

How to plan short-form video ads by placement: aspect ratios, hook timing, caption-safe framing, scene length and CTA structure — and how to adapt one concept across platforms.

Updated

Start with the placement, not the platform

Most short-form placements share a pattern: a full-screen vertical canvas, sound that may be off, interface elements covering the edges, and viewers who decide within a couple of seconds whether to keep watching. Plan for those constraints first, then tailor per platform.

Always confirm current specifications in each platform’s official ad guidelines before launching; they change.

Aspect ratios

  • 9:16 vertical — TikTok, Instagram Reels and Stories, YouTube Shorts, Facebook Reels.
  • 1:1 square — versatile for Facebook and Instagram feed placements.
  • 16:9 widescreen — YouTube in-stream and web embeds.

The first two seconds are the ad

Put the most visually interesting moment first. Open on the product in motion, a surprising action or a bold claim you can support — not a logo animation. Pair the visual hook with an on-screen caption so it works with the sound off.

Caption-safe framing

  • Keep faces, products and key action in the upper-middle of a vertical frame.
  • Leave room at the bottom for captions and the platform’s interface.
  • Use one short caption idea per scene; if it needs two lines, cut words.

A reliable 15-second structure

  • 0–3s: Hook — the reason to keep watching.
  • 3–7s: Feature or problem — what it is or what it fixes.
  • 7–12s: Benefit or proof — the product in real use.
  • 12–15s: CTA — a clear, specific next step.

Adapting one concept everywhere

Build the concept vertically first, then reframe: 1:1 for feed, 16:9 for YouTube. Keep the hook identical so you can compare performance fairly, and change one variable at a time when testing — the hook, the angle or the CTA.

In Sardav, the Ad Creator plans this structure as a storyboard. You choose the platform and target duration, pick one of several hooks, and regenerate only the scenes you want to test.

Compliance basics

  • Only make claims you can substantiate; Sardav never invents claims, but you’re responsible for the final ad.
  • Label dramatized or testimonial-style content appropriately and never present AI-generated people as real customers.
  • Use music and assets you have the rights to.

Put it into practice

Sardav applies these principles automatically — and shows you every line.

Start creating