Eucalyptus Grandis is a tall tree with smooth bark, rough at the base fibrous or flaky, grey to grey-brown. At maturity, it reaches 50 meters (160 feet) tall, though the largest specimens can exceed 80 meters (260 feet) tall. Eucalyptus Grandis grows as a straight and tall forest tree, reaching around 50 m (160 ft) tall, with a dbh of 1.2 to 2 m (3.9 to 6.6 ft). The biggest trees can reach 75 m (246 ft) high and 3 m (9.8 ft).
The bark is smooth and powdery, pale- or blue-grey to white in color. It has a skirt of rough brownish bark for the bottom 1–4 m of the tree trunk. The timber has a pinkish tinge and makes a good use in joinery, flooring, boat building, paneling, and plywood. It has a straight grain, and moderate durability and strength.