A Hog Haven Portable Swine Building is a factory-manufactured confinement structure designed primarily for use by smaller or start-up hog operations. Available to be purchased (and assembled on farm) are: 3-, 4-, and 6-pen nursery units; 2-, 4-, 6-, 8-, and 10-sow farrowing units; 25-, 50-, 65-, and 75-head feeding floor units; and a 12-pen multi-purpose unit. Features of these buildings include: all-steel construction; woven wire mesh flooring (oak flooring optional); fully insulated roof, walls, and rear panel; side and end panels that open for ventilation; portability (each mounted on skids); and alterable floor plans to meet specific needs and location challenges. All assembly hardware is provided.