A well-measured gaming setup starts with the right desk size—think a 48x24-inch...

https://annamaid.com/is-osha-a-good-reference-for-home-desk-ergonomics/

A well-measured gaming setup starts with the right desk size—think a 48x24-inch surface that fits your gear without crowding. Leaving about 36 inches of clearance behind your chair makes moving around easy and comfortable during longer sessions