We went from a 36' DP to our 45' Cornerstone. 1st year about 10K miles and no issues finding places to camp with our Big Rig, including some state parks. (For state parks, we rely on Google Earth and use the measuring tool for good estimate on site lengths, turn radius on interior roads, etc.)
As others here have said, RV Park Reviews, Good Sam (site length & width info), and Google Earth are your trip planning friends
As others mentioned, more recently built cgs tend to have wider interior road & sites that are truly Big Rig Friendly. But we have found several 'older, smaller' cgs are also adding new big-rig sites / pull through sites, too. So we have been able to return to some of our favorites we first camped in a 36' DP. Sometimes the site is long enough, but disconnecting the toad at the cg entrance helps navigating interior roads and parking MH at your site
For examples, and to add to the cgs listed so far on this thread:
Poncho's Pond RV Pk, Ludington, MI
(city of, also has sandy beach and lighthouse tour)
Shelby/Mansfield KOA, Shelby, OH
(2 above R older cgs that recently built big-rig friendly sites)
Drummer Boy Cg, Gettysburg, PA also had lovely sites
(that fit big rigs in their original cg layout)
Lewis & Clark SP, Onawa, IA
(wonderful L & C museum and flatboat exhibits there, too)
Rafter J Bar Ranch, Hill City, SD
(multiple areas fit big rigs, close to Mt Rushmore)
Sterling SP, Monroe, MI
(right on Lake Erie, beautiful sandy beach)
And, fishing ponds/lagoons available at all the above.
You will love the ride of your new Entegra, and the additional comfort the longer coach provides is definitely worth it :-)
If you haven't yet, check out the Spartan Owner Training class, too! We attended the Spartan class at Spartan factory location, and the included driving course was wonderful...DW learned to drive a 45' MH ...her first time ever driving ANY RV. Many great topics covered for diesel coach owners made it time well spent, and cost was worth it. BTW, Entegra specific dates were filled so we attended the 'general' date. We made new friends who owned Tiffin, Newmar, even though we were the only Entegra there, Spartan instructors, like Big Mike, do a wonderful job providing specific details for each attendee...regardless of brand, coach/engine size, etc. Highly recommend
Welcome to the Entegra family
Safe Travels To All
"Classic" 2015 Cornerstone 44B
2014 Jeep GC Overton toad, AF1, BO Avail