Custom holes and walls - s-leger/archipack GitHub Wiki
Use any (clean and closed) mesh as custom hole or wall.
Custom wall
Select the wall, press "Custom wall" in Add Archipack -> Custom objects. Undo by selecting the wall and press "selected" in Archipack Tools -> Kill parameters.
Custom hole
Select the hole, press "Custom hole" in Add Archipack -> Custom objects. Undo by selecting the hole and press "X" next to "Custom hole".