2 Chronicles 3:4
And the porch that was in the front of the house, the length of it was according to the breadth of the house, twenty cubits, and the height was an hundred and twenty: and he overlaid it within with pure gold. (2 Chronicles 3:4)
An hundred and twenty.
 According to 1 Kings 6:2 the height of the Temple was 30 cu. Kings does not give the height of the porch, but the figure here given, 120 cu. or 175 ft. (53.3 m.) would provide a structure unlike anything else known in ancient architecture. A porch 20 x 10 x 120 cu. would be actually a tower of skyscraper dimensions. Perhaps 20 cu. is meant in harmony with several manuscripts of the LXX and the Syriac (see on 1 Kings 6:3).
Twenty cubits.
 The porch in front of the house was equal in width to the width of the Temple, which was 20 cu. Its depth was 10 cu. (1 Kings 6:3).