Board-on-Board vs. Side-by-Side
This is the decision that determines whether your fence is actually private in five years. Most "privacy fence" builds you'll be offered around Dallas are side-by-side. It's the simpler build, and it looks solid the day it goes up.
Then the wood dries. Dallas summers pull moisture out of cedar fast, and side-by-side pickets shrink apart. Within a season or two you get pencil-width gaps down the whole run. Now your neighbor can see your patio and you can see theirs.
Board-on-board fixes this by design. Each picket overlaps its neighbor by about an inch, mounted on alternating sides of the rail. When the wood shrinks, the overlap absorbs the movement. No gaps, ever. As a bonus, the alternating pattern looks nearly identical from both sides, which keeps HOAs and neighbors happy.
We build board-on-board as our standard privacy fence because it's the only layout that stays sight-proof through a Texas summer. Side-by-side has its place for simple projects and non-privacy runs, and we'll build it if that's what you want. But if the goal is real seclusion, board-on-board is the answer.