I still have the 6X10 that I borrowed from my brother-in-law and I pull in untill the front tires hit the front rail. It does hang over the front a little bit. If it had a ramp it would be close but still plenty of room to close it. I do have a 6X12 that I own that I will use once I take the 6X10 back to him.Do you have a 6x10 and put the Viking in it? Cause i use my neighbors 6x12, and theres not alot of room left once the Viking is in it. Another thing 10ft is 120" i believe, isnt the Viking specs say 122"? Id go 6x12.