We need to run 3 6" inch ducts to the other side of our center support beam in our basement. Is it safe and code-approved to cut a hole in the 2" x 10" where the red circle is located? There is actually two 2" x 10" back to back where the red circle is.
Below are two pictures. One shows the desired hole (red circle) to be cut and the other shows the center support beam and floor joists.
Below are two pictures. One shows the desired hole (red circle) to be cut and the other shows the center support beam and floor joists.

