Screened in Porch

[Lorenchief]

Does anyone have direction on where to look in creating a covered screened in porch above a flat roof garage? The garage proposed is a 2 car and client wants the porch to be half the roof above and the other half deck over the second further car from house. The entry into the covered porch is off the DR of the floor above. It's a split level home and elevation drops off in back enough to get the cars under the proposed porch/deck. I tried by creating piers in the garage and a beam to rest the gable end of the porch on between the cars below.  I then built exterior walls and thought I'd introduce multiple Combination Screen Dooor company's doors as fixed panels. Of course they don't have an object I can use, nor are there any screen doors. I thought I'd place a two panel door and replace the panels with screen, but again no screen material in library. Any thoughts to this goal or shedding light on the obvious would be much appreciated.

Thanks.

[Lorenchief]

Thanks.