The Codex Ephraemi is about 12 inches by 9 inches [31 cm by 23 cm], and it is the earliest example of manuscripts with just one column of writing per page.
Codex Ephraemi mõõtmed on umbes 30 korda 25 sentimeetrit ning see on varaseim näide käsikirjast, kus leheküljel on vaid üks veerg.