Well part of this equation depends on whether your talking a first generation 1160 (a bit lower basement), or a newer model 1160, so I’ll assume it’s newer ‘above the bed rails’ generation that you’re referring to..
I can only speak to the previous generation 1160 which is the same height (and basement height) as my 2009 995 which has no side entry...My 995 resting atop a 2016 3500 dually Ram is about 12’-5” to the top of the air conditioner (my garage door is 14’ tall), so I’m fairly sure the present generation 1160 with it’s taller, more spacious basement is somewhat higher than that...JMO