The front of the higher stories was not supported on pillars, but there was a narrowing from “the lowest” (chambers) “and” from “the middlemost” (chambers) “from the ground.”
SDA Bible Commentary (limited)
Volume 1-7
6. Pillars of the courts. It is not clear which pillars are referred to. The LXX has no word for “courts.” Some think the pillars apply to the 30 chambers (ch.40:17).