Ezekiel 43:12-14 New American Bible (Revised Edition) (NABRE)
12 This is the law for the temple: the entire area on top of the mountain all around will be a most holy place. This is the law for the temple.
The Altar. 13 These were the dimensions of the altar[a] in cubits, a cubit being one cubit plus a handbreadth. The channel was one cubit deep by one cubit wide, and its rim had a lip one span wide all around it. The height of the altar itself was as follows: 14 from the channel at floor level up to the lower ledge was two cubits, with the ledge one cubit wide; from the lower ledge to the upper ledge, four cubits, with the ledge one cubit wide.