וְהַבְּרִ֥יחַ הַתִּיכֹ֖ן בְּת֣וֹךְ הַקְּרָשִׁ֑ים מַבְרִ֕חַ מִן־הַקָּצֶ֖ה אֶל־הַקָּצֶֽה׃
and the middle bar in the midst of the boards, which shall pass through from end to end.
Read halakhic rulings (Jewish law) on Exodus 26:28: and classical halakhic sources.