[sn9]

Wooden fences tend to be only a plank thick, so there's no savings like there are with brick walls where the savings come from getting to build a single layer thick.

[Maxion]

Raw lumber is much cheaper than sawn lumber, though. It's OK to use more, as long as the volume increase and price decrease works out favorably.

[helb]

Yeah exactly… I guess there might be some waviness/height/length ratio where the extra length and the absence of posts evens out.

[sn9]

John Cook actually goes into the math of that here: https://www.johndcook.com/blog/2019/11/19/crinkle-crankle-ca...