Why the Mare Motel Concept Keeps Winning Fans
For decades, traditional center-aisle barns were the default choice for American horse owners. Yet in dry and temperate regions—from Arizona to central California—another structure has quietly taken over the landscape: mare motels. Also known as shed-row barns or covered pens, these open-air shelters line individual stalls beneath a single roof and connect them with a central breezeway. The result is a building that delivers ventilation, visibility, and cost efficiency without sacrificing durability.
This article draws on data from manufacturers such as LP Steel Industries, SC Barns, and AZ Horse Barn Builders, as well as firsthand experience managing a 24-stall breeding facility in the Sonoran Desert. By the end, you will know exactly how a mare motel works, what it costs, and whether it fits your herd’s needs.
Core Design: A Closer Look at the Structure
Unlike enclosed barns, a mare motel is open on at least three sides. Stalls typically measure 12′ × 12′, 12′ × 16′, or 12′ × 24′, framed with 16-gauge or heavier galvanized steel tubing. The roof—usually 26-gauge corrugated metal—spans the entire row of pens and the center breezeway, shielding horses and handlers from sun, rain, and snow while allowing free airflow.
Because each stall stands beneath the same roof line, adding or removing pens is a modular process. One breeding client here in Pinal County started with four stalls to quarantine new arrivals and later expanded to 14 without moving a single post. That scalability is a primary reason trainers looking to grow—or downsize—prefer mare motels over fixed masonry barns.
Materials Matter: Built to Withstand Weather and Horses
Every manufacturer quoted in our research uses galvanized steel for framing. The zinc coating resists rust, especially critical when inquisitive horses lick or chew gate rails. In areas with high humidity or salt air, some barn builders offer an optional powder-coat top layer for additional protection.
Roof panels generally fall into two categories:
- 26-gauge painted steel panels in a high-rib profile (most common)
- Galvalume® panels with an acrylic coating for extra heat reflectivity
From a lifelong owner’s perspective, thicker steel up front saves thousands later. A local reining barn replaced all 18 pens after only six years because thin 29-gauge sheeting rusted through at the screw lines. Upgrading to 26-gauge added roughly $1,200 to the original quote—far less than the subsequent tear-down and rebuild.
Customization Options That Turn a Basic Mare Motel into Your Dream Barn
One hallmark of mare motels is how easy it is to tailor them. According to SC Barns, clients can choose raised center aisles, gable roofs, or fully enclosed end walls to block prevailing winds. Stall fronts can be solid, have grilled upper halves, or incorporate yoke-style doors that let social horses hang their heads in the aisle.
If you manage a mixed herd, partition panels can convert a 24′ pen into two 12′ foaling stalls during spring, then remove them for roomy turnouts in winter. A Quarter Horse breeder near Buckeye bolted plywood sheeting to the lower half of his gates to curb pawing mares—a modification that took one afternoon and a cordless impact driver.
Health Benefits: Airflow, Visibility, and Stress Reduction
The open design of mare motels nearly eliminates stagnant air. Good ventilation disperses dust, ammonia, and mold spores—substances linked to heaves and inflammatory airway disease. At our own facility, installing a mare motel reduced chronic cough cases from four in 20 horses to zero within two months.
Horses are social prey animals, and sight lines across the breezeway let them monitor herd mates, lowering stress. Lower stress translates to fewer vices like cribbing and weaving, and it simplifies everyday chores: feeding, mucking, and farrier work happen under the same broad roof, rain or shine.
During triple-digit summers, many owners mount barn fans to the roof trusses to keep air moving, and some line stall floors with horse stall mats for extra traction and joint support.
Installation: From Kit Delivery to First Horse
Most mare motels arrive as pre-engineered kits that include posts, rafters, rails, gates, and roof sheeting cut to length. If you are comfortable assembling a metal carport, you can likely handle a small barn row. Over the past five years, we’ve erected three different kits; the two-stall model took two adults eight hours with a level, cordless drill, and ladder.
Professional crews obviously finish faster—especially for breezeways taller than 12 feet—but DIY assembly remains a core selling point. AZ Fence and Barn notes that any competent local welder can add welded wire panels or mesh to keep foals from rolling under rails.
Budget Breakdown and Long-Term Cost of Ownership
Pricing varies by region, steel market volatility, and add-ons. As a ballpark in 2024:
- Basic 12′ × 24′ two-stall unit: $5,800–$7,200 delivered
- Four-stall unit with 12′ breezeway: $10,500–$12,500
Upgrades—powder-coat, insulated roof panels, automatic waterers—push costs higher, yet mare motels still run 30–40 percent below enclosed barns of comparable size. Ongoing savings include lower electric bills (fewer lights and fans needed) and reduced bedding because ample air circulation dries wet spots faster.
Real-World Lessons From the Aisle
1. Secure posts in concrete. Even if the kit spec sheet calls for tamped-in dirt, set posts in at least 18 inches of concrete to prevent settling in flood years.
2. Orient your breezeway perpendicular to prevailing winds where possible. In Arizona’s monsoon belt, a west-facing opening captures afternoon breezes and shields sunrise glare.
3. Plan utilities early. Running water and power conduits under the slab—or trenching before you backfill posts—avoids jack-hammering later when you decide to add automatic waterers or LED aisle lighting.
Compliance and Safety: Navigating Local Building Codes
Before ordering, call your county planning office. Maricopa County, for instance, waives building permits for agricultural structures under 200 sq ft but still requires zoning clearance if the roof sits within 20 feet of a property line. LP Steel Industries offers engineering packets stamped for 140 mph wind loads and 35 psf snow loads—documents many municipalities expect before issuing permits.
When in doubt, photograph your site, sketch the roof footprint, and bring both to the counter. That small step saved one of our readers a $650 resubmittal fee after the first plan reviewer questioned stall height.
See a Mare Motel Walkthrough
Frequently Asked Questions
Are mare motels only for mares?
No. The term originated because breeders housed expectant mares and foals in open pens, but geldings, stallions, and even goats thrive in the same setup.
Do I need insulation under a metal roof?
If you live where daytime highs exceed 100 °F, a thin layer of foil bubble insulation reduces radiant heat significantly. Otherwise, strategic shade cloth and ridge vents normally suffice.
How do I prevent rain from blowing into stalls?
Add 2-foot overhangs or install removable shade panels on the windward side during storm season. Some owners retrofit clear polycarbonate siding to keep visibility while blocking rain.
Is a Mare Motel Right for Your Facility?
Choose a mare motel if you prioritize air quality, flexible stall counts, and cost control. Traditional enclosed barns still excel in regions with prolonged sub-freezing temperatures, but for most of the American West and South, open-air shed rows deliver healthier conditions at a fraction of the price. By understanding materials, customization options, and local codes—and by learning from hands-on examples like those shared above—you can invest confidently in a structure that serves both horses and humans for decades.