Here you can find several wooden elements and them variations, also several kinds of bracing were included too. And several examples which you can use in your project.
This package is a part of Architecture bundle (save 50%)
Support, URP and HDRP shaders are here:
Triangles counts:
Bracing - 2740 tris
New planks - 72 tris
Old planks - 920 tris
Round pillars new - 312 tris
Round pillars old - 472 tris
Square pillars new - 176 tris
Square pillars old - 552 tris
Sticks - 486 tris
Arches - 572 tris