It's 18" wide at the lid lips, about 30" front to the back of the heat shield. The legs are just over 11" tall and the top of the deck is about 26.5" tall (to the floor). The box is short of 23" deep. Brick lined on the bottom and one row up the sides. 6" vent with a damper. I used a single-walled pipe about 6 feet tall with a chimney cap.
2 guys can pick it up with only a minor risk of a hernia, but I can load it on your truck with my tractor.