
Roughly 60 to 75 feet tall and 40 to 50 wide in the Midwest, and long-lived — often well past 150 years on a decent site, so you are removing it for conflict, not old age. That puts it squarely in the large-removal bracket, and because the wood is heavy and the crown is tall and upright, most mature sweetgum takedowns want a crane or a large bucket rather than climb-and-rig.
Sweetgum is notorious for surface roots, and compacted subdivision clay makes it worse — with no oxygen deeper, the roots run shallow, then thicken and lift sidewalks, drives, and patio slabs. It also does poorly wherever root space is confined, so tree lawns, parking islands, and narrow side yards are where most of the hardscape-conflict work comes from.