how do you get the roof to be aligned with the under roofing? i can't ever get them to touch.
I think those are wood fences.
Took me a while to see it too.
Edit: no...wait...are they? Not again! ):
Ah yes, thank you!The blocks are indeed stone/sandstone slabs.
The platforms are spooky platforms combined with bone platforms (spooky only where platform connects to a block).
Ahhh! That gel >,< off slimes.