To set up a gaming space in a small room, start with a desk about 100 to 120...

https://seo.edu.rs/blog/how-much-space-do-i-need-just-to-sit-comfortably-at-my-desk-11216

To set up a gaming space in a small room, start with a desk about 100 to 120 centimetres wide to fit your monitor and keyboard comfortably. Use a monitor arm to save desk space and keep your screen at eye level