The 400 Series / Klamath IV built by Cavco Millersburg is a 3-bedroom, 2-bathroom doublewide manufactured, MH Advantage home with 1,620 square feet on a 60-foot frame. Across the front of this plan run the main bedroom and a family room, with a kitchen, a dining area and a living room along the back and two bedrooms at the right end. A bath and a utility room sit beside the kitchen, a porch marks the right end, and two optional main bath layouts are drawn beside the plan.