Author
Retired – Husband, father, author of the Dreamer’s Alliance Series. When I’m not writing, I might be in my woodshop, working around the house or walking around with a camera. I might be having a beer with friends. You can find me on my blog at NoFacilities.com and on Amazon.
In this case, the header is 2 2x8s with a piece of 1/2″ plywood sandwiched in between. The plywood adds strength and makes the header 3 1/2″ wide (the same width as a 2×4).
No Facilities 
Add your thoughts or join the discussion. One relevant link is OK, more require moderation.