

Wood Board to Fix Unmountable Faucet/Air Gap
Hello
Our main kitchen sink, underneath is really in bad shape with board rotten. Our kitchen faucet and the air gap are fairly loose and not mounted tightly.
A very similar Youtube Video -- https://youtu.be/ZL4hBn4ogcM?si=jBkDwvC9pQbJDhwK
I measured the board and it's 4 inches vertically and 24 inches horizontally. Could I simply put a new board on these and put these two Faucet and Air Gap holes?
Is this plumbing work? or do I need to call Handyman or Carpenter to do this work?
Thank you!