22
Data
SMB System C
Design of temporary edge protection
EN 13374 sets the following requirements for
Classes A, B, and C, edge protection:
• Edge protection must be at least 1.0 m high,
measured perpendicular to the working sur-
face.
• Principal (top) and intermediate guardrails or
other means of intermediate protection must
be provided.
• A toeboard, if provided, must have a height of
at least 150 mm with a maximum gap of 20
mm from the lowest part of the toeboard to the
working surface.
• Safety nets used as edge protection must con-
form to EN 1263-1.
Class A design
• The edge protection may not deviate
from the vertical line A by more than
15°.
• The edge protection openings may not
be more than 470 mm in one direction,
when intermediate guardrails are used.
• The edge protection openings may not
be more than 250 mm in one direction,
when there is no intermediate guard-
rail.
Class B design
• The edge protection may not deviate from the
vertical by more than 15° outwards or inwards.
• The edge protection openings may not be more
than 250 mm in one direction.
