The Hebrew noun attuq refers to a ledge, gallery, or balcony — an architectural feature of the temple structure described in Ezekiel's visionary temple. It appears in Ezekiel 41-42 in the highly detailed architectural specifications of the eschatological temple.
The detailed temple measurements in Ezekiel 40-48 are not arbitrary architecture but a theological vision of God's perfect dwelling place among His redeemed people. Every gallery (attuq), every measurement, every proportion speaks of divine order, holiness, and the restoration of the broken relationship between God and humanity. The New Jerusalem in Revelation 21-22 fulfills and surpasses Ezekiel's vision — God Himself dwelling with His people with no temple needed, for 'the Lord God Almighty and the Lamb are its temple.'