Just to re-activate this topic, there are a few differences in the various door types, and they aren't very clearly noted, as far as I know. The primary advantage over the "Commercial" door is that the frame can be set to "Wrap around wall", essentially simulating a knock-down type of frame (generally steel or aluminum). The "Metal" Doors are more limited, mainly representing hollow metal frames. Of course, the wood doors have many more options, including casing and shim space. However, in plan or 3D view, this generally make little difference.
The middle frame component has been recently re-introduced in most of the door types, I'm happy to report (in either AC16 or AC17?). However, it cannot be accessed through the graphical interface pane; it can only be found under the "Door Frame" parameters, along with it's width.
According to the AC17 new features guide, the Europeans seem to have a lot more options now available, like sidelites with sill height, and different door panels on double doors.
I would like to someday see a monster door object that could have 3D accessories like closers, protection plates, keypads, surface rods, hinges, bottoms, hold-opens, stops, automatic openers, a wider variety of exit devices, and maybe even exit signs, pushbuttons, and card readers! Link that to the schedule, and I would be in heaven!
Chuck Kottka
Orcutt Winslow
Phoenix, Arizona, USA
ArchiCAD 25 (since 4.5)
Macbook Pro 15" Touchbar OSX 10.15 Core i7 2.9GHz/16GB RAM/Radeon Pro560 4GB