This is the typical 6 or 5 without the passenger door bar nhra style roll bar.
Building a roll cage 101.
A roll cage is a metal framework that can be built around the inside of a vehicle.
A standard feature in race.
A roll cage is a specially constructed tubular frame built in or around the cab of a vehicle to protect its occupants from injury in the case of an accident or rollover.
The basic 4 point roll bar consists of a main hoop behind the driver two rear struts and an optional cross brace on the main hoop should you need it or the rules.
Then you build upon that by adding bars for an 8 point roll cage then progress to an 8 50 or 10 point roll cage.
The bars shown in blue are optional.