how do you get more simple wood fences?

will they be in the nook miles exchange thingy? because right now it’s just been showing stone fences for the past couple of days and i really need the wooden ones lol

Yes it's in the nook miles exchange machine thing, he sells the recipes to lots of different fences so everyday there will be 2 random for sale.

There'll be a rotation in the Nook Miles, and every day you'll get a new kind of fencing to learn. Yesterday I got the simple wooden fence, so just be patient unless you're someone who time travels - I did durning New Leaf but I refuse to in New Horizons, and it'll show up eventually.

I'm hoping as the months go along, new stuff besides fencing shows up in the Nook Miles.

you wait for them in the nook miles machine, which is crazy because i feel like i'm getting every fence already except that and it's supposed to be the most basic one LOL