A 48x24-inch desk gives you ample space for your keyboard, mouse, and a 27-inch...

https://yonderstack.com/s/zJoqGS41OXR0uVjG5-knu

A 48x24-inch desk gives you ample 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 long sessions