Custom design is required when your site or vehicle does not fit standard carport dimensions. Common situations include a carport for a motorhome or trailer that exceeds standard bay height, an L-shaped structure that covers both a vehicle bay and a garden area, a multi-bay commercial facility that must meet specific column spacing for forklift access, and properties in security estates where the HOA specifies a particular roofline pitch, material finish, or colour that differs from stock carport designs.
It is also the right path if you need technical drawings for municipality building plan submission, or if a previous installer told you the site was not buildable, unusual ground conditions, height restrictions, and non-rectangular plots are all problems we have solved before.