Not in either of my Cruisers over 12 yrs or any of the other brands for the previous 14 yrs. Have you inspected the door gasket, especially around the hinges? Does the door compress the gasket? While water might leak around the gasket, it still should not get on the floor unless strong wind forces it inside the trailer. The bottom sill should be sloped with an outside lip that normally diverts water away from the floor.
Texas Baptist Men-Retiree Builders member since '01
13 Silverado 3500HD D/A, 2wd CCSB srw, custom RKI bed
11 Cruiser CF32MK