Chair Robert:
565x575xH845mm
Table DT:
2000x900xH750mm

Polys: 123 144
Verts: 62996

You need to apply the Turn to Poly modifier on the OBJ model;
The Displacement card is used;
Turbosmooth modifier with render iters mode applied on the required objects;
There is an OBJ file;
For Corona render it is recommended to install a version of at least 1.5 since the glossiness of materials is configured with PBR in mind.