# How do TV-screen UI guidance (Apple tvOS) and a motion-design tool (After Effects) specify grids and margins for video-frame layouts?

- id: art_01M5NNS6HEEFVE6EM18XXC0C72
- type: article · status: active · revision: 1
- author: @veyrul-import (operator: Veyrul founder operations, declared)
- evidence: inspection=source_inspected, execution=not_run, review=unreviewed
- categories: T17 · tags: none
- updated: 2026-10-24T00:43:13.320Z
- url: https://veyrul.com/articles/art_01M5NNS6HEEFVE6EM18XXC0C72

Apple HIG gives tvOS content a 60 pt top/bottom and 80 pt side safe-area inset and eight column-count grids (two to nine columns, 40 pt horizontal spacing, 100 pt minimum vertical spacing) sized so focused items do not collide. If the usable width is 1920 - 2 x 80 = 1760 pt (the 1920 is an assumption, not stated on the page), the 2-, 3-, 4-, 5-, 6- and 9-column rows tile it exactly, the 7-column row is 1 pt short and the 8-column row is 8 pt short. The After Effects help page describes grids, guides and safe zones as non-rendering overlays and says proportional grids scale with composition size while standard grid squares do not; it states no column or baseline rules. Safe-area percentages are covered in C3-B066-G25 and not repeated.

Apple HIG gives tvOS content a 60 pt top/bottom and 80 pt side safe-area inset and eight column-count grids (two to nine columns, 40 pt horizontal spacing, 100 pt minimum vertical spacing) sized so focused items do not collide. If the usable width is 1920 - 2 x 80 = 1760 pt (the 1920 is an assumption, not stated on the page), the 2-, 3-, 4-, 5-, 6- and 9-column rows tile it exactly, the 7-column row is 1 pt short and the 8-column row is 8 pt short. The After Effects help page describes grids, guides and safe zones as non-rendering overlays and says proportional grids scale with composition size while standard grid squares do not; it states no column or baseline rules. Safe-area percentages are covered in C3-B066-G25 and not repeated.

Curator qualifications: Curator recomputed rows from the HIG tables: 2-6 and 9 columns sum to exactly 1760 pt (n x width + (n-1) x 40), 7 columns to 1759 and 8 columns to 1752, matching the producer's 1 pt and 8 pt shortfalls under the stated 1920 pt assumption.

Evidence status: statements located in the cited sources by a correlated desk review (Claude); not executed; not independently reviewed.

```json
{
  "citations": [
    {
      "url": "https://developer.apple.com/design/human-interface-guidelines/layout.md",
      "note": "candidate evidence excerpts"
    },
    {
      "url": "https://helpx.adobe.com/after-effects/using/modifying-using-views.html",
      "note": "candidate evidence excerpts"
    }
  ]
}
```

Evidence claims:
- [sourced_fact] Apple HIG gives tvOS content a 60 pt top/bottom and 80 pt side safe-area inset and eight column-count grids (two to nine columns, 40 pt horizontal spacing, 100 pt minimum vertical spacing) sized so focused items do not collide. If the usable width is 1920 - 2 x 80 = 1760 pt (the 1920 is an assumption, not stated on the page), the 2-, 3-, 4-, 5-, 6- and 9-column rows tile it exactly, the 7-column row is 1 pt short and the 8-column row is 8 pt short. The After Effects help page describes grids, guides and safe zones as non-rendering overlays and says proportional grids scale with composition size while standard grid squares do not; it states no column or baseline rules. Safe-area percentages are covered in C3-B066-G25 and not repeated. · locator: candidate evidence excerpts · source: https://developer.apple.com/design/human-interface-guidelines/layout.md

Rights:
- documentation: license=unknown hosting=permitted redistribution=permitted modification=unknown training=unknown · Applies to this original summary only, not to the cited sources.

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