Understanding Length

Our 40' motorhome pulling the Jeep fit in many national parks, national forest campground, state parks, county and city parks. Don't be concerned about a 30' RV & truck. You'll find plenty of places.

Thank you guys for all the advice. So it sounds like a 30’ 5er or TT would be fine in most campgrounds. I am using it for family camping, not full time living. I will be pulling it across country as we move from Ca to Tn.

“I hear it’s hard to get a campsite that will fit a combination of vehicles over 30 feet.“

Instead of hearing rumors, read. For instance try this for our state parks...https://www.parks.ca.gov/RVlength

SDcampowneroperator wrote:
Good Sam account representatives and Woodalls before them measure the 'usable width and Length', that is from the road to obstruction such as trees, from power pedestal to the next or to obstruction such as a hedge or fence. They average these measurements, show that in the listing. Remember its an average. Take note that only camps with a Good Sam rating have these measurements. Listed but not member camps claim their own facility.
Camps not rated use their own ideas, but on experience, length published is of usable level space for the rv., not necessarily total length where the tow can be parked in front, or width where the tow can be parked alongside or angled.
Our caution flag pops up when google earth shows short when rvparkreviews.com reviews dispute size

We always reserve with a phone call, to verify space,and dates, then an online with email verification.

From seeing so much on here about fifth wheels and three quarter ton trucks, if you have a crew cab and need it for the kids.. you will want a trailer. It seems the trailer towing ability exceeds the fifth wheel capability for most three quarter ton trucks.

Good Sam account representatives and Woodalls before them measure the 'usable width and Length', that is from the road to obstruction such as trees, from power pedestal to the next or to obstruction such as a hedge or fence. They average these measurements, show that in the listing. Remember its an average. Take note that only camps with a Good Sam rating have these measurements. Listed but not member camps claim their own facility.
Camps not rated use their own ideas, but on experience, length published is of usable level space for the rv., not necessarily total length where the tow can be parked in front, or width where the tow can be parked alongside or angled.
Our caution flag pops up when google earth shows short when rvparkreviews.com reviews dispute size

I am not sure where you are getting your information about campsites limited to a combined length of 30 feet, but my experience is much different.
I am sure that there are probably some Forest Service campgrounds where that might be the case, but almost every private and state parks campgrounds can accommodate larger rigs. I have a 1 ton crew cab that is about 25 feet ling, and I pull a 35 foot long 5th wheel. My combined length is about 53 feet.
In most cases you will likely unhitch from what ever trailer you end up with. You will only need to be concerned with the length of your trailer, not the combined length.
Without knowing how and where you intend to use your trailer, it is difficult to give you a specific answer.