Ezekiel 40:7 NLT

[7] There were guard alcoves on each side built into the gateway passage. Each of these alcoves was 10 1⁄2 feet square, with a distance between them of 8 3⁄4 feet along the passage wall. The gateway's inner threshold, which led to the entry room at the inner end of the gateway passage, was 10 1⁄2 feet front to back.