Exodus 27:1

You shall make the altar of acacia wood , five cubits long and five cubits broad . The altar shall be square , and its height shall be three cubits .

“Build an altar of acacia wood, three cubits high; it is to be square, five cubits long and five cubits wide.

And thou shalt make an altar of shittim wood, five cubits long, and five cubits broad; the altar shall be foursquare : and the height thereof shall be three cubits.