John Gill Commentary 1 Kings 7:17

"There were nets of checker-work, and wreaths of chain-work, for the capitals which were upon the top of the pillars; seven for the one capital, and seven for the other capital." — 1 Kings 7:17 (ASV)

And nets of checker work, and wreaths of chain work, for the
chapiters which were upon the top of the pillars
These were the ornaments of the chapiters; the former being like thick branches of trees, with their boughs and leaves curiously wrought, as the word signifies, and the latter like fringes, such as the Jews wore at the skirt of their garments:

seven for the one chapiter, and seven for the other chapiter ;
perhaps with four rows of checker work, and three of chain work.