In the scene there are 6 modules 3 ceiling and 3 wall of the rails of three sizes with built-in lights. The dimensions of the rails and luminaires correspond to those of the manufacturer TAGinterio Rail.
Slats – 23×60 mm 45×90 mm 45×60 mm
Sizes of modules:
ceiling approx. 1800 (rail length) x 1750 mm
wall about 2700 (length of slats) x 1750 mm
All objects are logically grouped named and easily edited. The wood texture of 4.8 K is seamless you can replace it in the material with others and just adjust the tiling in the material itself if necessary.

https://www.taginterio.com/skchema-montaja-taginterio-rail