A 48x24-inch desk gives you enough space for your keyboard, mouse, and a...

https://www.inter-bookmarks.win/a-comfortable-home-gaming-setup-starts-with-the-right-measurements-a

A 48x24-inch desk gives you enough space for your keyboard, mouse, and a 27-inch monitor without feeling cramped. Pair that with at least 36 inches of clearance behind your chair to move comfortably during those long gaming sessions