KJV:

12 Now the building that was before the separate place at the end toward the west was seventy cubits broad; and the wall of the building was five cubits thick round about, and the length thereof ninety cubits.

NASB:

12 The building that was in front of the separate area at the side toward the west was seventy cubits wide; and the wall of the building was five cubits thick all around, and its length was ninety cubits.