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.

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