Ezekiel 42:15-20 - Outside Dimensions Of The Temple Complex
15 After he had finished measuring the inner temple, he brought me out through the east-facing gate and measured it all around.
16 He measured the east side at 500 reeds, according to the length of the measuring stick, 17 the north side at 500 reeds, according to the length of the measuring stick, 18 the south side at 500 reeds, according to the length of the measuring stick, 19 and the west side at 500 reeds, according to the length of the measuring stick.
20 He measured a wall that encompassed all four sides, 500 hundred long and 500 wide, dividing between the sacred and common areas.