וַיִּ֤בֶן אֶת־היצוע [הַיָּצִ֙יעַ֙] עַל־כָּל־הַבַּ֔יִת חָמֵ֥שׁ אַמּ֖וֹת קֽוֹמָת֑וֹ וַיֶּאֱחֹ֥ז אֶת־הַבַּ֖יִת בַּעֲצֵ֥י אֲרָזִֽים׃ (פ)
他靠著整座殿建了側屋，每層高五肘；又用香柏木覆蓋了殿。
Mishneh Torah, The Chosen Temple
There is to be no visible wood structure in any part of the Temple compound, only stones or bricks and mortar. Even [temporary] wooden walkways in the Court are not allowed.