When planning a gaming setup in a small space, focus on a desk about 100 to 120...

https://www.bookmarkingqueen.win/planning-a-gaming-setup-in-limited-space-means-smart-choices-start-with-a-desk

When planning a gaming setup in a small space, focus on a desk about 100 to 120 centimetres wide to fit your gear without crowding. Use a monitor arm to free up surface area and keep screens at eye level