Ezekiel 40:18 - Wesley's Explanatory Notes

The pavement — That mentioned, Ezekiel 40:17. By the side — That part which lay on each side of the gate, and from thence spread itself toward the chambers, leaving a space of pavement of equal breadth with the porch, or gate in the middle. The length — The length was measured fifty cubits. The inner pavement — The side pavement was laid somewhat lower than this middle pavement, not only for state, but for the more convenient, keeping it clean; so the middle pavement rose with a little convex surface.