Here is an autocad dwg file where there is a 3D view of the desk for office with its chair and appropriate space planning with all detailing.
Wall section view detail d
Staircase section plan det
Construction view of water
Construction detail view d
Construction working plan
Bridge details
Different types of lighti
Diagram unifier detail dwg
River front Boulevard gene
First floor Framing plan.
Details of a Glass Block
Construction detail in dwg