Exodus 38:1-8

38¹ He made the altar of burnt offering of acacia wood; five cubits was its length and five cubits its width--it was square--and its height was three cubits. ² He made its horns on its four corners; the horns were of one piece with it. And he overlaid it with bronze. ³ He made all the utensils for the altar: the pans, the shovels, the basins, the forks, and the firepans; all its utensils he made of bronze. ⁴ And he made a grate of bronze network for the altar, under its rim, midway from the bottom. ⁵ He cast four rings for the four corners of the bronze grating, as holders for the poles. ⁶ And he made the poles of acacia wood, and overlaid them with bronze. ⁷ Then he put the poles into the rings on the sides of the altar, with which to bear it. He made the altar hollow with boards. ⁸ He made the laver of bronze and its base of bronze, from the bronze mirrors of the serving women who assembled at the door of the tabernacle of meeting.