The total wingspan of the cherubim was twenty cubits. One wing of the first cherub was five cubits long and touched the wall of the temple, and its other wing was five cubits long and touched the wing of the other cherub.
Here is an account of 1. The two cherubim, which were set up in the holy of holies. There were two already over the ark, which covered the mercy-seat with their wings; these were small ones. Now that the most holy place was enlarged, though these were continued (being appurtenances to the ark, which was not to be made new, as all the other utensils...
Commenting on 2 Chronicles 3:10-17
2Ch 3:10-13 The figures of the cherubim are called צעצעים מעשׂה, sculpture work. The ἁπ. λεγ.. צעצעים comes from צוּע, Arab. ṣâǵ, formavit, finxit, and signifies sculptures. The plur. יצפּוּ, “they overlaid them,” is indefinite. The length of the wings was five cubits, and the four outspread wings extended across the whole width of the most holy place from one wall to the other.
Commenting on 2 Chronicles 3:10-13