Ezekiel 43:16

16 The altar hearth shall be square, twelve cubits long by twelve wide.

Ezekiel 43:16 In-Context

14 From the base on the ground to the lower ledge, two cubits, with a width of one cubit; and from the smaller ledge to the larger ledge, four cubits, with a width of one cubit;
15 and the altar hearth, four cubits; and from the altar hearth projecting upward, four horns.
16 The altar hearth shall be square, twelve cubits long by twelve wide.
17 The ledge also shall be square, fourteen cubits long by fourteen wide, with a rim around it half a cubit wide, and its surrounding base, one cubit. Its steps shall face east.
18 Then he said to me: Mortal, thus says the Lord God: These are the ordinances for the altar: On the day when it is erected for offering burnt offerings upon it and for dashing blood against it,
New Revised Standard Version Bible, copyright 1989, Division of Christian Education of the National Council of the Churches of Christ in the United States of America. Used by permission. All rights reserved.