Hi, new here, and was looking for 3 across in a CRV when I came across this message.
I have a 2007 CRV, ie the newer shape, and have 2 kids in SNS hi-liners.
Your concern about fitting 3 boosters eventually is what I am trying to do now. I need to fit a 3rd booster in, just for transporting cousins and friends.
Three seats would fit OK except that the stupid CRV designers have put the buckle for the centre rear seat about 10cm towards the centre of the car instead of next to the buckle for the window seat (IYKWIM). This means that although a child restraint will physically fit, it sits right on top of the buckle, so the seatbelt can't be done up. You can kind of manage with a fixed car seat but not a booster that needs doing and undoing every trip. AAHHH!!!
I have investigated seat belt extenders, but these are illegal for use with child restraints and RTA engineers say they may cause severe injury.
Tomorrow I am taking the car to a seat belt fitting station to investigate getting the actual buckle replaced with a longer one and moved over. If they'll do it I'll post the success story.
Also, we had to change from a maxirider to the hiliner because the MR was too wide to allow the seatbelt to be buckled in once it was being used as a booster. For your 3 across, I think the only likely options are 2 compaq's and a hi-liner or infa vario, the safest and narrowest boosters, with the booster on the window side. But try them first, because getting your hand in to do up the buckle is the trickiest part and you can't tell from measurements how manageable that will be.
Good luck!
I love my CRV but wouldn't advise buying the newer shape if you might ever want 3 seats. It looks more spacious than it is!