mine is 2.5 wide by 2m out ... i wanted it to run along the vehicle moreso than out from it. Ironman (mate worked there, cheap cheap)
Doesnt get in way of my swing up windows on canopy (unless you drop the awning too far down but then my head would it it anyway.)
Also gotta be careful of opening hilux doors if the awning is too low it can rip it with the sharp edge of door.
mate with ranger has the 2m wide by 2.5m out from vehicle. Same same really, some days the angle of cars vs sun his is hbetter, other days mine is.
I tend to use an occy strap with something heavy suspended as a means to tie them down.