EZK 43:17

17 The upper ledge is also a square, ◄24-1/2 feet/7.4 meters► on each side. There is a ◄21 in./53 cm.► gutter [at the bottom of the altar], and a ◄10.5 in./26.6 cm.► rim all around it. There are steps up to the east side of the altar.”