Ezekiel 43:13-15

13“These are the measurements of the altar in cubits (the cubit is one cubit and a handbreadth): the base one cubit high and one cubit wide, with a rim all around its edge of one span. This is the height of the altar:

14from the base on the ground to the lower ledge, two cubits; the width of the ledge, one cubit; from the smaller ledge to the larger ledge, four cubits; and the width of the ledge, one cubit.

15The altar hearth is four cubits high, with four horns extending upward from the hearth.