Sounds like you've done some good planning ahead xYes it's 5ft by 1.5ft and the hutch will be moved into the outdoor utility in the winter (concrete building, insulated with heaters). We've had the boys 2.5 weeks and wasn't thinking of adding any other piggies any time soon. It was just more of a question for way in the future.
I think I'd just move the hutch - save the pennies for hay, food and vets billsI might get a Midwest cage to move them in for the winter into the outdoor utility if I can find a good price instead of moving the hutch inside.
... looks like you've upgraded location since we last chatted PiggyOwner?.