When planning a gaming setup in a tight space, start with a desk about 100 to...

https://web-wiki.win/index.php/Gaming_Setup_for_a_Teen_Bedroom_with_Limited_Floor_Space

When planning a gaming setup in a tight space, start with a desk about 100 to 120 centimetres wide to fit your monitor comfortably. Use a monitor arm to free up desk space and add flexibility