Exodus 27:1-8

1 You shall make the altar of acacia wood, five cubits long and five cubits wide; the altar shall be square, and it shall be three cubits high.
2 You shall make horns for it on its four corners; its horns shall be of one piece with it, and you shall overlay it with bronze.
3 You shall make pots for it to receive its ashes, and shovels and basins and forks and firepans; you shall make all its utensils of bronze.
4 You shall also make for it a grating, a network of bronze; and on the net you shall make four bronze rings at its four corners.
5 You shall set it under the ledge of the altar so that the net shall extend halfway down the altar.
6 You shall make poles for the altar, poles of acacia wood, and overlay them with bronze;
7 the poles shall be put through the rings, so that the poles shall be on the two sides of the altar when it is carried.
8 You shall make it hollow, with boards. They shall be made just as you were shown on the mountain.