Window dimensions
Every New Zealand regulation's sizes for a window, side by side. Millimetres unless marked.
- G7/AS1Second Edition29 Nov 2021
- G4/AS1Fifth Edition28 Jul 2025
- NZS 4121:2001
- F4/AS1Third Edition Amendment 21 Jan 2017
- NZS 4223.3:2016
- E2/AS1Fourth Edition28 Jul 2025
- AS/NZS 5601.1:2013
- G13/AS1Second Edition Amendment 102 Nov 2023
- C/AS1Second Edition Amendment 128 Jul 2025
- C/AS2Second Edition28 Jul 2025
- Kāinga Ora v2.1
- Lifemark v2
- ADM Standalone housing
- ADM Terraced housing
- ADM Apartments
- ADM Mixed use
| Building Code and standards | Client, rating and council | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| G7/AS1 | G4/AS1 | NZS 4121 | F4/AS1 | NZS 4223.3 | E2/AS1 | Kāinga Ora | Lifemark | Auckland DM | ||
| Light and air | ||||||||||
| Glazing, of floor area | ≥10% | |||||||||
| of it, see-through in A | ≥50% | |||||||||
| A | See-through band | 900–2000 | ||||||||
| Light through the glass | ≥70% | |||||||||
| B | Head height, of room width | |||||||||
| one or adjacent sides | ≥1/2 | |||||||||
| opposite sides | ≥1/4 | |||||||||
| Openable, of floor area | ≥5% | |||||||||
| Heights | ||||||||||
| C | Glass bottom, living room | |||||||||
| standalone or mixed use | ≤800 | |||||||||
| terraced or apartment | 800–1000 | |||||||||
| D | Controls | 900–1200 | ≤1200 | |||||||
| only high sashes open | ≤1500 | |||||||||
| Opening over a fall | ||||||||||
| Fall below it | >1000 | ≥2000 | ||||||||
| E | Sash sill, or a barrier | |||||||||
| narrow, under 1000 wide | ≥760 | |||||||||
| wide, in a house | ≥1000 | |||||||||
| wide, anywhere else | ≥1100 | |||||||||
| F | Restrictor opening | ≤100 | ||||||||
| narrow, homes or under-6s | <100 | |||||||||
| wide, homes or under-6s | none | |||||||||
| no under-6s, any width | ≤460 | |||||||||
| Glass | ||||||||||
| G | Low level glazing, within | ≤800 | ||||||||
| a way through if taller | >1000 | |||||||||
| and wider | >500 | |||||||||
| H | Manifestation band | 800–1200 | 800–1400 | |||||||
| its width | ≥20 | ≥100 | ||||||||
| Bathroom, safety glass to | ≤2000 | |||||||||
| Side panel, from a door | ≤800 | |||||||||
| Frame | ||||||||||
| Frame, sill above floor | ||||||||||
| width | ≤5000 | |||||||||
| height | ≤5000 | |||||||||
| area | ≤13.5 m² | |||||||||
| Height without a rail | ≤1500 | |||||||||
| Building Code and standards | |||||
|---|---|---|---|---|---|
| AS/NZS 5601 | G13/AS1 | C/AS1 | C/AS2 | ||
| Around the window | |||||
| I | LPG cylinders, sideways | ||||
| J | Or above their valves | ||||
| exchange cylinders | |||||
| filled in place | |||||
| K | Drain vent, above it | ≥600 | |||
| below or beside it | ≥3 m | ||||
| gully trap vent, any side | ≥900 | ||||
| L | From the relevant boundary | ||||
| unrated, in a rated wall | >1 m | ||||
| within 1 m, each opening | ≤0.1 m² | ||||
| within 1 m, apart | ≥1.5 m | ||||