split or hollow headers vrs 2 ply nailed together headers.

[woodcraftdesign]

In the Midwest when we use 2) 2x10s or 2)lvls we nail them tight together with a specific nailing pattern.  Most of the time these are nailed to the bottom side of the top plate.  Headers up tight to the top of the wall.  We add a plate to the bottom of the header and this forms the top of the window RO.  The remaining 2.5 inches on the interior is insulated.

 

Chief defaults to a split header or a hollow header.  Can I change this?

[tundra_dweller]

There are pretty robust header framing options in the default door/window settings, or you can set individually per opening too.