Enclosed trailer
An enclosed trailer is a hard-sided box that keeps weather and most road debris off the car. The door opening and the interior height reject some SUVs and lifted trucks. Measure the car before you pay the enclosed rate.
An enclosed trailer is a van-style trailer for cars. One or more vehicles ride inside. You are paying for that equipment. The car can still be scratched by a strap, a ramp, or another vehicle if the load is tight. Do the same condition report you would do on an open trailer.
What does not fit
The limit is the door and the ceiling, not the highway. A lifted truck, a roof rack, or a tall SUV can be too high even when an open trailer would take it. Ask for the usable height in inches and measure the car on the tires it will ship on. Ground clearance still matters on the ramp. If the company will not give a number, do not invent one and do not let a quote site invent one.
How it differs from an open trailer
The open trailer has no roof and carries more cars. The enclosed trailer is a scarcer truck, which is why the quote is built separately. RideShipper does not own these trailers and does not promise a spot on one.