Hello
See this question:
http://www.lynkoa.com/questions/comment-modeliser-une-grille
Or see in the tutorials offered by default in SolidWorks in the task pane:
http://help.solidworks.com/2013/French/SolidWorks/sldworks/r_task_pane.htm
In the resources:
http://help.solidworks.com/2013/French/SolidWorks/sldworks/r_solidworks_resources.htm
I seem to remember that there is a tutorial for a (barbecue) grill.
Edit: see this image:
http://www.lynkoa.com/sites/default/files/questions/answer/19/04/2013/tutorielsw.jpg