How to Write a Video Ad Script That Fits

This is a fictional brief. I’m writing a 20 second ad for Harbor & Bean, a small coffee chain that wants office subscriptions.

The brief lands with too many goals. More sales. More sign-ups. More brand story. More everything. So we do what good script writing always does first, we cut.

The brief: who the ad is for, and what it must do

In this example, Harbor & Bean has three cafes. It roasts fresh coffee, packs monthly office boxes, and delivers them to workplaces. Customers can pause anytime. The ad goal is narrow. It should get clicks from office buyers who want a simple coffee fix for the team.

That means the script does not need the full origin story. It does not need the menu. It does not need three reasons the beans are special. It needs one promise, one proof, and one next step.

Here is the raw material I keep:

• One coffee box for offices
• Fresh roast
• Delivery to the workplace
• Pause anytime
• One clear call to action

Here is what gets cut on page one, the founder story, the cafe names, the bean notes, and any line that explains too much. Ads are not little documentaries. They are tiny decisions.

Start with one viewer and one moment

Write for one person with one problem. For Harbor & Bean, I picture someone at 2:10 p.m., between meetings, staring at the empty coffee jar in the break room.

That changes the first line. A weak opener says, “Great coffee for your team.” It sounds fine and says very little. A stronger opener says, “Running out of office coffee again?” That line names the problem fast and gives the viewer a reason to stay.

As a practical target, keep the hook under 7 seconds. Faster hooks usually work better in short ads, because the viewer has not decided to care yet.

Draft the script in three beats

For short ads, I use problem, promise, action. It keeps the script moving and stops it from wandering. For this one, a rough draft comes out near 58 words. That can fit a 20 to 30 second ad if the read is brisk, but delivery speed changes the total.

Draft one:

Problem: “Running out of office coffee again?”

Promise: “Harbor & Bean sends fresh roast to your team each month.”

Action: “Choose your box, pause anytime, and get coffee off your list.”

That draft is decent, but still clunky. “Get coffee off your list” is tidy, but not vivid. So I try a cleaner version:

Problem: “Running out of office coffee again?”

Promise: “Harbor & Bean delivers fresh roast to your team each month.”

Action: “Pick a box, pause anytime, and order in a minute.”

The second version is better because each line does one job. The first draft had extra words. The second one moves.

What to show on screen, line by line

Match each line with one simple visual. A video ad script is easier to approve when the picture is obvious.

Keep on-screen words light. The brand name, one line for the offer, and the call to action are enough. Too many captions slow the ad down. If every sentence gets text, the screen starts to look busy and the viewer has to work too hard.

A clear rhythm matters more than fancy transitions. Empty counter. Box arrives. Phone taps. Done. That is the whole shape of it.

A rough draft, then the tighter version

Here is the messy version I might get from a first pass:

“Office coffee should be simple. Harbor & Bean is a local coffee company with fresh-roasted beans, monthly delivery, flexible plans, and easy ordering for busy teams. Keep your office stocked with great coffee and never worry about running out again.”

That is not bad writing. It is just too much for a short ad. It says the same thing more than once. It also leans on soft words like “great” and “easy” without showing them.

Here is the tighter final version:

“Running out of office coffee again? Harbor & Bean delivers fresh roast to your team each month. Pick a box, pause anytime, and order in a minute.”

What changed? We cut duplicate claims. We moved the useful action earlier. We removed vague praise. The trade-off is simple, less detail, more speed.

What makes it an ad, not a mini explainer

A good ad makes one point and stops. That is the hard part. If you start listing every benefit, the script turns into a lecture.

For Harbor & Bean, the one point is this, office coffee can be handled in minutes. Not hunted for. Not managed by one tired person. Handled.

So the ending has one job too. One button. One action. One sentence. For example: “Order your office box.” That is enough. Do not add “learn more,” “see plans,” and “contact us” in the same ending. The viewer needs one path.

If you are writing a 15 second version, cut the promise down even harder. If you are writing a 30 second version, use the extra time for one bit of proof, not three more claims. For a shorter structure, this guide helps: How to Write a Script for a 30 Second Animation.

Timing, word count, and what to avoid

Short ads live or die on timing. A 15 second script needs very few words. A 20 to 30 second script can hold one clear problem, one promise, one proof, and one action. Read it aloud. If you sound rushed, cut words.

As a rough working range, many 20 second scripts land around 45 to 60 words. That is not a rule. It depends on the voice, pauses, and how much screen time each line needs. A calm read needs more room. A fast read needs less.

Watch out for these common mistakes:

• Two hooks in one script
• Three benefits where one would do
• Soft words like “great,” “nice,” and “simple” without proof
• Two calls to action in the same ending
• Long brand history that no one asked for

If a line does not move the ad forward, cut it. If two lines say the same thing, keep the sharper one.

How to turn the script into a finished film

Once the words are tight, the film part gets much easier. A script can become a voiced ad with music and sound effects. It can also become a version for social, a website header, or a clean pitch clip for a sales team.

A film can start from a sentence, a script, a document, a template, a voice recording, or a website address. That matters when your copy already lives in a doc. It also helps when the website has the right tone and words, and you want to shape them into a film.

One useful starting point is to paste a web address on the front page. The site reads the colours, lettering, and words of that website. Seeing your own colours in a film is free and needs no account. A film of your own comes with a plan, and plans are on the prices page: pricing.

If you want to move from script to finished film, this article fits well: Turn a Script Into an Animated Video. If you are still sorting out the tool itself, this page explains the basics: What is Nine (nine.film)?.

A script template you can reuse

Here is the version I hand to someone who needs to write fast:

Hook: Say the problem in one line.

Promise: Say the main benefit in one line.

Proof: Show one real thing, such as delivery, a demo, a before and after, or a product shot.

CTA: Say one action and stop.

You can fill that in for almost any short ad:

Product ad: “Tired of boring team snacks? Get fresh office boxes delivered each week. One box. One click. Order now.”

Service ad: “Need help with the monthly close? Our bookkeeping team handles the messy bits. Fast replies, clear reports, simple setup. Book a call.”

The check is plain. Read every line out loud. If a line does not move the ad forward, cut it. If two lines say the same thing, keep the sharper one. If the script still sounds crowded, you have too many ideas.

That is the real trick in video ad script writing. Not clever words. Clear choices. One viewer. One moment. One message. Then out.

Director says: A short ad script is like coffee, too much of it and nobody sleeps.

FAQ

How long should a video ad script be?

For a short ad, aim for the length your format can actually hold. A 15 second ad usually needs a very tight script. A 20 to 30 second ad can carry one problem, one promise, one proof, and one action. If you add too many details, the pace drops. Read it aloud. If you sound rushed, cut words.

What is the best structure for a short video ad?

A simple structure works best, hook, promise, proof, CTA. Start with a real problem or a sharp question. Then show the main benefit. Add one visual proof. End with one clear action. That gives the viewer a quick path from interest to click.

How many words should a 15 second ad script have?

There is no magic number, but it needs to be short enough to read naturally. A 15 second ad usually leaves room for only a small number of words. Write the first draft, read it aloud, and cut until it fits comfortably. Fast delivery needs fewer words, not bigger ones.

What should a first draft of a video ad script include?

Include the problem, the main benefit, one proof point, and the call to action. That is enough for a first draft. Do not worry about polish too early. The first job is to find the message and remove extra stuff. After that, you can tighten the wording and match the shots to the lines.