Hello Friend. Sorry don’t know the dimensions. When you do receive Coach be sure to look closely at window treatments. Mine were missing half of the fasteners that were stripped out because they were screwed in 1/8” paneling with no backing. Screws through paneling with no backing will not hold.
Also closely looking at flooring. Ours had several deep gouges flooring that were covered up with a special tape to temporary disguise faults. After a period of time you will see dirt accumulation at glued edges. After factory warranty expire when they show up retailers will not expect responsibility.
One last thing nobody checked for sewer and gray water valves for leaks on a “WINTERIZED” coach. Remove cap were hose connects ensure valves are closed properly and fill each tank one at looking for leaks. There is nothing worse than every time cop is removed to have raw sewage behind the cap. Or cross contamination between tanks. Best of luck and happy Camping.