Suitable for G scale 1:29. I designed these interlocking fence sections in tinkercad that can be press-fit together in either straight or 90° orientation. Also designed the gate, ramp, dock, legs, and slanted railing. The slanted railing (ramp_fence) got a little wonky, and I should've fixed the connecting holes, but I was able to use them as is.

I used cows scaled to 80mm head to tail from this thing, https://www.thingiverse.com/thing:182114