כִּֽי־אֹ֣רֶךְ הַלְּשָׁכ֗וֹת אֲשֶׁ֛ר לֶחָצֵ֥ר הַחִֽצוֹנָ֖ה חֲמִשִּׁ֣ים אַמָּ֑ה וְהִנֵּ֛ה עַל־פְּנֵ֥י הַהֵיכָ֖ל מֵאָ֥ה אַמָּֽה׃
En effet, la longueur des salles donnant sur le parvis extérieur était de cinquante coudées, tandis que parallèlement au Hêkhai elle avait cent coudées.
Rashi
Opposite the hundred cubit length span to the northern entrance [He brought me] to the entrance of the chamber that faced north, towards the Outer Court. And he saw before him a fifty- cubit wide space [extending] until the northern wall of the Outer Court, and the length was one hundred cubits. For the chambers occupy one hundred cubits from east to west, and its width from north to south was fifty cubits, as is stated below in this section, and the interior of the Outer Court was [a total of] one hundred cubits wide, as is stated above (40:23): “and he measured, from gate to gate, one hundred cubits.” We thus find that before the chambers was an empty space one hundred cubits long and fifty cubits wide.