Ok - yes - that is what I was guessing & researching, too - a 15x30. And yes - I actually do mean a tarp :( I know tarping isn't recommended, but we bought our first big travel trailer last fall & it was a dud. There is water damage that spread the length of the trailer (because we called a local retailer & were told NOT to tarp, so we left it out in the elements thinking we were doing the right thing - what did we know - we jumped into this way too fast!). We cannot afford to fix, so we are just trying to baby it through the winter & then decide what to do with it. So for now we are just putting a tarp over the roof to try to get it through the snow because we also can't afford inside storage & winters here are rough. I don't want to spend a ton of money on an rv cover if we may get rid of camper if it gets tons worse over the winter. Thanks for all your recommendations so far!!!