No such thing exists. The Ford Transit has over 1 million possible combinations. I’ve driven 7.5 tonners barely capable of taking 6 pallets in the back and I’ve driven ones that are as large as 17 tonners.
The idea of those trucking satnavs is you put in the dimensions of the vehicle you’re driving at the time.
I’ve seem 7.5 toners that are 8’6" wide, 30’ long and can be 16’6" high if they need be. When I first started in transport the one Swift gave me for my youth was 8’6" wide, 13’ high and the bed of the curtainsider body had space for 10 regular size pallets.