Corridor and path dimensions

Every New Zealand regulation's sizes for a corridor or a path, side by side. Millimetres unless marked.

D1/AS1Second Edition Amendment 61 Jan 2017
NZS 4121:2001
C/AS1Second Edition Amendment 128 Jul 2025
C/AS2Second Edition28 Jul 2025
Kāinga Ora v2.1
Lifemark v2

		Building Code and standards				Client and rating
		D1/AS1	NZS 4121	C/AS1	C/AS2	Kāinga Ora	Lifemark
Width
A	Clear width	≥1200	≥1200	≥700	≥850	≥1050	≥1050
	exitway				≥1000
	hospital exitway				≥1200
	single escape route				≥700
	upper floor					≥1000
	with a turning circle						≥1200
B	Path outside	≥1200	≥1200	≥1000		≥1000	≥1200
	to an apartment building					≥1200
	secondary, from parking					≥800
	to the clothesline					≥600
	Escape width, per person				≥7
	hospital				≥8
Height and projections
C	Headroom	≥2100	≥2100
	shorter than 2000 long	≥2000	≥2000
	under signs and lights		≥2000
D	Handrail, into the width	≤100		≤100	≤100
	other, below 800 high	<100
	800 to 1600 high	<60
	above 1600 high	<200
Levels and edges
E	Cross fall	≤1:50	≤1:50			≤1:50	≤1:50
	at least, to drain	≥1:100				≥1:100
F	Slope along, before a ramp		≤1:20
	path to the entrance						≤1:16
G	Rest area, length		≥1200
	apart, on 1:33 to 1:20		≤18 m
H	Upstand, raised over 25	≥75