I'm building a deck and I have a 20ft span to run the deck boards. I could only get 16ft lengths, should I stagger the joints or split them into 10ft and have one seam in the middle.
Staggering the joints can make a nice appearance to your deck, because it will not have a line in the middle that would seem to divide it. A single seam in the middle may cause problems in time if the wood warps in any way. It will make the surface uneven and can cause a tripping hazard. Just be sure if you stagger the joints the ends align directly over a joist so they are supported properly. Good luck.