Charles Ellicott 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)

Seven for ... —This is probably an erroneous reading. It should be “a net-work (or lattice-work) for the one capital, and a net-work for the other.”