BASIC PRINCIPLES OF DDA
A) HANDRAIL: Handrail must be a
continuous smooth surface. Handrail must
be on both sides of ramp or stairs.
B) HANDRAIL HEIGHT: Handrail must be
900mm-1.1m in height.
C) EDGE PROTECTION: When there
is a drop off , ramps require a curb or
curb rail to prevent wheel chairs from
slipping out from under the railing. In
some cases a mid rail is suffi
cient to
provide this protection.
D) CLEARANCE: A ramp must have a
minimum clear width of 1m.
E) D RETURNS: Rail ends need to be rounded
or return smoothly into a fl oor, wall or post.
F) EXTENSIONS:
Stairs: Handrails should extend the
width of one stair tread and then level out for 300mm
Ramps: Handrail should extend parallel to walking
surface 300mm past the top and bottom of the ramp.
B
C
A
D
E
F
For assistance visit: www.simplifi ed
CVJMEJOH
.co.uk/solutions/dda-handrail/or call 0844 335 8460
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