There is a large number free way gantries across melbourne. Tek1 has detailed a good number of them very efficiently.
Here is an example of one such Gantry we have detailed for our Melbourne client in the SouthEast.
There are couple of types of gantries, very similar. The large span gantries have to be fabricated with a camber which is challange for the detailer and fabricator.
Managing weld distortion, transport etc are the challenges the fabricator will have solve.
Most of such jobs come with a very short delivery time between order and install, and generally high pressure jobs. Getting first time right is super important.