Ezekiel 43:13-15

13“These are the measurements of the altar by cubits (a cubit being a normal cubit plus a handbreadth). Its gutter will be a cubit deep and a cubit wide. Its rim will be one span surrounding the edge. This will be the base of the altar.

14From the base on the ground to the lower ledge will be two cubits and the width one cubit. From the smaller ledge to the larger ledge will be four cubits and the width a cubit.

15The altar hearth will be four cubits high. Four horns will project upward from the hearth.