Planning a gaming setup in limited space starts with picking a desk around 100...

https://www.pawn-bookmarks.win/planning-a-gaming-setup-in-a-small-space-start-with-a-desk-about-100-to-120

Planning a gaming setup in limited space starts with picking a desk around 100 to 120 centimetres wide—big enough for your monitor and keyboard but small enough to fit tight corners