Ramp dimensions

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

		Building Code and standards					Client
		D1/AS1	NZS 4121	C/AS1	C/AS2	F4/AS1	Kāinga Ora
Slope
A	Slope		≤1:12				≤1:12
	accessible	≤1:12
	common, gets wet	≤1:10
	common, dry	≤1:8
	service	≤1:3
	Cross fall	≤1:50	≤1:50
Width
B	Clear width	≥1200	≥1200	≥700	≥850
	exitway				≥1000
	hospital exitway				≥1200
Landings
C	Rise between landings						≤760
	accessible, past 1:33	≤750
	other, past 1:33	≤1500
D	Run between landings		≤9000
E	Landing length		≥1200				≥1200
	accessible	≥1200
	other, or width if less	≥900
F	Clear area at the foot		≥1200
Edges and handrails
G	Upstand, open side	≥75	≥75
	or an edge rail, under		≤75
H	Handrail height	900–1000	840–900				900
	from the wall		50–60
	clear above it		≥100
	its size		32–45
	into the width	≤100		≤100	≤100
I	Handrail past each end	≥300	≥300
Kerb, step and threshold ramps
	Kerb ramp, slope	≤1:8	≤1:8
	length		≤1500
	width		≥1000
	clear at its top		≥800
	cross fall leading to it		≤1:20
	Step ramp, slope		≤1:8
	length		≤1520
	Threshold ramp, slope		≤1:8
	going		≤450
Barrier
J	Barrier, over a 1 m fall					≥900
	gap, homes or under-6s					<100
	no under-6s, between rails					≤460