How tall is your typical trailer?

What is "typical?" There are trailers intended for easy towing that are kept to 6 1/2 width and height of 8 foot or less, and travel trailers go up to 12 feet in height and 8 width for the "luxury" market where high ceilings are a feature. 7 1/2 or 8 wide combined with height between 10 and 11 is pretty common in the "lightweight" market, although the low height is often gained by running low to the ground, and some owners find themselves flipping the axles or otherwise lifting their low profile TTs to gain groung clearance.