A structure type is a parameter that allows for both the filtering of masts, and defines the 2D structure symbols in Lineardraft.

The current structure types in Lineardraft are:

• Single Track Cantilever (STC)
• Two Track Cantilever (TTC)
• Twin Cantilever
• Portal
• Self Supported Anchor
• Attachment Point
• Triple Cantilever

A structure type will not appear in the Lineardraft ‘Structure’ window for selection when there are no masts within the currently selected catalogue(s) that are linked to that structure type.