I've got a good dilemma. We are replacing our cracked and splintered treated decking boards with Trex. I ordered 19-12' and 19-16' to cover the deck below. Home Depot screwed up the order and delivered 19-16' and 19-20'. I've talked it over with my wife and we are thinking of adding on to the deck as it's pretty cramped between the table, grill, and kids toys. I'm looking for recommendations from everyone here as my thoughts are in the second picture. The bump out is for the grill, while it doesn't utilize all of the extra decking they sent it does take care of the issue with Trex only making 6' railing sections. As you can see based on the current deck's dimensions I'd have to make every railing section 4' long, wasting 33%. At the cost of the railing I'm not looking forward to that.
Our other option is to just expand the entire deck 4' which utilizes all of the extra length. Let me know everyone's thoughts.