Exodus 27:1-2

Complete Jewish Bible

27 (vi) “You are to make the altar of acacia-wood, seven-and-a-half feet long and seven-and-a-half feet wide — the altar is to be square and four-and-a-half feet high. ² Make horns for it on its four corners; the horns are to be of one piece with it; and you are to overlay it with bronze.