NET
15 He fashioned two bronze pillars; each pillar was 27 feet high and 18 feet in circumference.
Darby
15 And he formed the two pillars of brass; the height of one pillar was eighteen cubits, and a line of twelve cubits encompassed the second pillar.
KJV
15 For he cast two pillars of brass, of eighteen cubits high apiece: and a line of twelve cubits did compass either of them about.