I found it confusing in the beginning that TKL boards are so named, because the 'tenkey' pad is another name for the numpad, so technically anything without a numpad is a TKL, including 60% boards--but somehow the name stuck to a very specific TKL layout (the 84-87-key kind). Must be more of a historical/circumstantional naming convention rather than a purely logical one. Just have to accept it.