Planning a gaming setup in limited space starts with a desk about 100 to 120...

https://www.animenewsnetwork.com/bbs/phpBB2/profile.php?mode=viewprofile&u=1251046

Planning a gaming setup in limited space starts with a desk about 100 to 120 centimetres wide to fit your monitor and accessories comfortably. Use a monitor arm to free up surface area and create more room for your keyboard and mouse