Materials are available in up to 8K - sometimes even larger than that. All textures come with PBR maps and tile seamlessly. Explore All PBR Materials · Wood ...
Easy PBR is a set of tools to simplify the process of creating and layering PBR shaders in Blender. It's possible to download PBR materials from AmbientCG ...
It isn't really needed to create realistic materials in Blender (especially with Cycles), but you can still use it to darken the tiny shadows in the surface.