Exodus 38:1-8

Then he made the altar of burnt offering of acacia wood, five cubits long, and five cubits wide, square, and three cubits high. He made its horns on its four corners, its horns being of one piece with it, and he overlaid it with bronze. He made all the utensils of the altar, the pails and the shovels and the basins, the flesh hooks and the firepans; he made all its utensils of bronze. He made for the altar a grating of bronze network beneath, under its ledge, reaching halfway up. He cast four rings on the four ends of the bronze grating as holders for the poles. He made the poles of acacia wood and overlaid them with bronze. He inserted the poles into the rings on the sides of the altar, with which to carry it. He made it hollow with planks. Moreover, he made the laver of bronze with its base of bronze, from the mirrors of the serving women who served at the doorway of the tent of meeting.