Detail this asset from Unity Store: Original Link
This is a paid asset, but now you can download HD Wood Flooring (MiniPack 4) Free.
HD Wood Flooring (MiniPack 4) v1.0
MiniPack 4 of 4.
This package contains a unique portion of HD Wood Flooring (available here).
Woodweave Cherry Polished & Satin
Woodweave Maple Polished & Satin
Woodweave Oak Polished & Satin
Woodweave Pine Polished & Satin
Woodweave Walnut Polished & Satin
Woodweave Wenge Polished & Satin
Cork 9 & 10 Sealed
Oak Polished & Satin
Olive Polished & Satin
Poplar Polished & Satin
Individual 1024px X 1024px (lossless PNG): diffuse, normal and specular maps.
A simple/fast custom DX11 non-IBL shader is also included to bring out the best of most hard surfaces:
[Diffuse Map + Glossiness + Specular Map with Intensity + Normal Map with Height Control].