This Sauna model is made with Blender 2.79b

Total Verts   : 36878
Total Faces  : 36448

Textures Used : 1k (Base Color, Metallic, Roughness, Normal )
Principled BSDF material is used for all Objects

This model has 3 layers
1st Layer   : The model
2nd Layer  : Lights
3rd Layer   : Shadow Catcher Ground Plane

This model is fully UV Unwrapped and named properly

AO maps are included

fbx and obj version of the model is also included