Exterior, Curved RoofLine, Metal Siding Material, Camper Building Type, and Wood Siding Material "I like the more boxy, modern look," Herbert says, "and I think it fits the small space better. You have more space in a box. As soon as you put a peak on a roof, you lose a lot of that usable space."  Photo 8 of 8 in A Modern Trailer is an Experiment in Small-Space Living