Why no over 40-foot trailers?

raydf wrote:
Please pardon the basic question but I've noticed that even the most expensive travel trailers are almost never over 40 feet in length. Are there some regulations or laws that preclude manufacturers from exceeding 40 feet or is it just that the market doesn't require them?

Thanks!

They do..The Jayco Eagle 333BHOK is 41.7 feet long with a tongue weight of 1465 pounds with the Jayco Eagle 338 RETS at 39.3 feet and a tongue weight of 1315 pounds..Infact,all the new Jayco Eagle trailers have a tongue weight of over 1200 pounds.