Short answer: choose a portable shelter on skids when animals live on pasture through the grazing season. Moving it spreads manure, lets trampled ground recover, and puts animals on cleaner ground. Choose a permanent building for winter housing, lambing and farrowing in cold weather, and anything that needs power, water lines or heavy storage. Many small farms use both: portable houses on pasture from spring to fall, and a fixed shed or barn for the hard months.
The case for portable
The old extension plans leaned hard on portability. The North Dakota Individual Portable Hog House is a 7 × 7 ft (2.1 × 2.1 m) shed-roof house, one per sow, built light enough to drag to clean ground between litters. That was the extension service's low-cost way to keep pigs healthy without treating the whole herd. The same logic runs through poultry range shelters and skid-mounted feeders and salt boxes.
- Cleaner ground. Manure and mud don't build up in one spot, and the old site gets time to rest.
- Better pasture. Moving shelters, water and minerals spreads grazing and fertility instead of stripping the area round a fixed barn.
- Lower cost. No foundation, and often no permit. Check local rules.
- Flexibility. Shade can follow the herd, and a shelter can be dragged to a new paddock in an hour.
The case for permanent
- Winter. Snow, frozen skids and mud make moving shelters impractical in much of the country.
- Birthing. Lambing jugs and farrowing pens are easier to keep warm, lit and supervised in a fixed building.
- Utilities. Frost-free water, electric heat lamps and lighting want a fixed location.
- Feed and bedding storage. Hay and grain need a dry, solid floor.
- Size. Past a certain size, a building is too heavy to tow without racking it apart.
Shelter space by species
Recommendations vary between extension sources, so treat these as ranges. Size up for larger breeds and for animals confined during bad weather.
| Animal | Shelter space per head | Typical shelter |
|---|---|---|
| Growing pig, on pasture | About 8 sq ft (0.75 m²) minimum; some sources allow up to 48 sq ft (4.5 m²) of housing plus a yard | Portable hut or three-sided shed |
| Ewe (open-front shed) | About 8–25 sq ft (0.75–2.3 m²) depending on source; at the upper end with lambs at foot | Three-sided shed facing away from the wind |
| Laying hen | 3–4 sq ft (0.3–0.4 m²) indoors with outdoor access | Coop on skids, or a fixed house |
| Broiler or growing pullet, summer range | Varies with age and how often the shelter moves | Open-sided range shelter on runners |
Penn State Extension notes that a three-sided shelter open on one side is enough for pigs with access to pasture. UNH Extension recommends the same kind of open-front shed for many pasture animals, with the open side facing south, away from prevailing winds, on an elevated, well-drained site.
Species notes
Pigs
Pigs root, wallow and can sunburn, so a pasture hut must give real shade and stay put against a shoving sow. Move huts before the ground around them turns to mud, not after. A ground-level strand of electric wire inside the fence discourages digging out. Feed from a solid base: the Hog Self-Feeder sits on its own slab for exactly that reason, while Creep Panels are light enough to move with the sow and litter.
Poultry
Poultry are the easiest stock to move. The 10 × 10 ft (3 × 3 m) Summer Range Poultry Shelter is a netting-walled gable on two runners. It gives shade by day and a dry roost at night, and moves to clean ground every few days. Move small floorless pens more often, often daily for meat birds, before grass under them is fouled. For winter, a fixed, insulated house like the Small Poultry House is more practical.
Sheep
Adult sheep in full fleece tolerate cold well. What they need is a dry windbreak and shade. A simple open-front shed covers most of the year; lambing usually happens in a fixed building with jugs of roughly 16–25 sq ft (1.5–2.3 m²) each. Rotating pasture helps with internal parasites, but worm larvae can survive on pasture for months. Rotation supports a parasite program; it doesn't replace one. Keep feeders off the ground: a Fenceline Feeder stays put, and a skid-mounted Salt & Mineral Box moves with the flock.
How to make a shelter movable
- Skids: two ground-contact treated timbers (4×4 to 4×6 for small houses) running the length of the building, with the leading ends beveled or rounded so they ride over the ground.
- Rigid frame: diagonal braces in the walls stop the building racking as it's dragged. The portable hog house braces its side and back walls for this reason.
- Tow points: pull from both skids with a chain bridle, never from one corner, and tow slowly on level ground.
- Weight: keep it light enough for the tractor or truck you actually own. Empty feeders and remove bedding before moving.
- Anchoring: light shelters can blow over in storms. Stake or tie them down, especially film- or netting-covered ones.
A simple rotation pattern
- Divide the pasture into paddocks with portable electric fencing.
- Set the shelter, water and minerals in the first paddock.
- Move the stock, shelter and water together when the grass is grazed down or the ground around the shelter starts to wear. That might be days for poultry and weeks for pigs.
- Give each paddock as long a rest as your land allows before animals return.
Frequently asked
How often should I move a pig hut?
Whenever the ground around it starts to break up and get muddy, and at least between groups or litters.
Can a portable shelter work in winter?
For hardy sheep or pigs with deep bedding, often yes, but parked in one sheltered spot on well-drained ground rather than moved.
Skids or wheels?
Skids are cheaper and simpler and suit moves every few days or weeks. Wheels pay off on large range pens moved daily.
Space figures summarize Penn State and UNH Extension and other extension guidance; sources vary, and local conditions and breed should guide your sizing.