Ezekiel 40:10-12

40:10 There were three alcoves on each side of the east gate; the three had the same measurement, and the jambs on either side had the same measurement. 40:11 He measured the width of the entrance of the gateway as 17½ feet, and the length of the gateway as 22¾ feet. 40:12 There was a barrier in front of the alcoves, 1¾ feet on either side; the alcoves were 10½ feet on either side.