Ezekiel 40:7

Each gate chamber was one rod long and one rod wide, and there were five cubits between the gate chambers. The inner threshold of the gate by the portico facing inward was one rod deep.

Note 5 (long) cubits is approximately 8.75 feet or 2.7 meters; also in verses 30 and 48.

And every little chamber was one reed long, and one reed broad; and between the little chambers were five cubits; and the threshold of the gate by the porch of the gate within was one reed.

Every lodge was one reed long and one reed wide. Between the lodges was five cubits. The threshold of the gate by the porch of the gate toward the house was one reed.

And every lodge was one reed long, and one reed broad; and the space between the lodges was five cubits; and the threshold of the gate by the porch of the gate toward the house was one reed.