There is an Example Layout guide on the site, situated like so many useful links along the left hand side of the Home Page. This serves to explain just exactly how to calculate your costs prior to contacting PW. But basically, translate your given fence runs into inches and divide by 65.5 (maximum panel width plus 5-1/2″ if using surfaced 6×6 posts) to get the number of panels required.  With this count, go to the Base Cost Table and calculate the cost per panel, remembering to add or subtract any given percentages associated with any given fence style. You now have a panel count and cost for the product itself and can inquire about shipping or delivery costs.
The ideal commission provides us only with an index of panels, their style, and net dimensions. But we will also gladly do the math to create equal width panels over each section of fence-line.  This will be exemplified in your dimension drawings in both elevation and plan views.