
Commonly 70 to 100 ft tall with a 30 to 50 ft spread in an open yard, and capable of living 200 years or more, so the tree being quoted is usually nowhere near finished. That height on a single straight heavy stem pushes most mature removals into the crane or technical-rigging bracket rather than bucket-truck work, especially in a fenced back yard with no drive access.
Roots are shallow and fleshy, and in subdivision lots where topsoil was scraped off they stay in the top foot or two of compacted clay, so the tree takes the water first and everything planted under it loses. Surface roots ridge up through turf and will lift a patio edge, but the more common call is the reverse: a tuliptree that wilts hard the first dry July after a driveway, addition, or trench went in near it.