Dimensioning Lumber - Can I plane through thickness last?

Nope. As long as your reference face is flat, you are fine. I do it all the time, sometimes flipping the stock multiple times for the last few passes to final thickness.

Cheers,
Brad

-- Brad in FL - In Dog I trust... everything else is questionable

Thats is pretty much the sequence you use on rough stock !
Just curious why jointer is not leaving as smooth a job as planer ?
Perhaps knives need sharpening.
Both machines should leave same result

-- "My mission in life - make everyone smile !"

Agree with Brad. If you’re removing a significant amount of stock, it’s a good idea to try to balance the amount on each side of the board so you don’t risk having one side with more moisture than the other, which could increase the tendency to cup or twist.

-- Half of what we read or hear about finishing is right. We just don’t know which half! — Bob Flexner

Thanks, guys – that was my thought. As long as my reference face was flattened and I took enough off the top with planer to reach the same plane, I should be fine.

In regards to Rich, I’m not really taking much off here – stock is 4/4 but shy of that by a little. I’m taking down to 3/4 heavy. Lastly, I think my knives do need sharpened/replaced – need to look into that soon.

Thanks again for the confirmation! Rather ask then to have a bunch of lumber that isn’t prepared correctly.