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Version 17.01, as of: 27-Jun-2017
Required rafter and purlin dimensions
Comply with the following minimum dimensions for rafters and purlins as per EN 1995-1-1.
The minimum rafter/purlin height must be 100 mm.
The minimum distance between fastened flat head screws and the edges of rafters and purlins must be
three times the flat head screw diameter. Position hanger bolts in the centre of rafters and outside the
centre on purlins.
Figure 122: Defining the distance to the edge of rafters Figure 123: Defining the distance to the edge of purlins