Horse Barn Builders Serving St. Louis, Illinois and Missouri
Your horses deserve a safe, comfortable place to live, and you deserve a barn that makes every day of care easier. O’Neil Metal Buildings & Barndominiums designs and builds custom horse barns, stall barns, and indoor riding arenas for horse owners across St. Louis, the Metro East, Illinois, and Missouri. We are based in Belleville, IL, we serve a roughly 200-mile area, and we have been building for 50 years.
Turnkey Horse Barn Construction
With O’Neil’s turnkey design-build service, one team takes your barn from idea to move-in day. We:
- Design the barn around your horses, your routine, and your land
- Provide engineering and stamped drawings as required
- Handle all permitting
- Build it, including concrete, framing, and MEP (electrical, water, and more) when needed
See how it works on our process page.
Designed Around Horse Health and Daily Care
A good barn layout keeps horses healthier and chores faster. We plan:
- Stall placement and size for your horses and how many you may add later
- Aisle width for safe leading, turning, and equipment
- Airflow and light, with options such as cupolas, ridge vents, windows, and Dutch doors
- Tack rooms, feed rooms, and wash bays where you actually need them
- Grooming and farrier areas, plus secure storage for vet supplies
- Hay and bedding storage close to where you use it
For a deeper look at planning, read our guide on designing the ideal equestrian barn.
Horse Barns, Stall Barns, and Indoor Riding Arenas
We build the full range of equestrian buildings:
- Private horse barns for a few horses on your home property
- Stall barns for boarding, breeding, or training operations
- Indoor riding arenas with clear-span interiors so you can ride in any weather
- Combination buildings that attach stalls to an arena, or add a lean-to for run-in shelter or equipment
- Hay and equipment storage to support the farm side of the operation
Examples from our project gallery include a 36x48x12 horse barn in Wildwood, MO and a 60x176x16 riding arena in Wildwood, MO. You can also see a farm and equestrian building in Fenton, MO.
Planning an Indoor Riding Arena
Arena planning starts with how you ride. Dressage, jumping, roping, and pleasure riding all call for different sizes and clear heights. We look at the riding area you need, the eave height for safe riding, where the doors go for tractors and footing equipment, and whether the arena should connect to your stall barn. Clear-span framing keeps the floor open with no posts in the riding area.
Post Frame and Metal: Built to Last
Most of our horse barns use post frame construction, which is strong, efficient, and well suited to barns and arenas. Larger spans can use pre-engineered metal buildings. Options include:
- Premium stall fronts, doors, and partitions
- Insulated walls and ceilings for year-round comfort
- Wainscot to protect lower walls
- Sliding barn doors, Dutch doors, and roll-up doors
- Porches and overhangs for shade and shelter
- Custom colors and trim from our materials and finishes
Our metal panels carry a lifetime paint warranty.
Horse Barn Kits for DIY Builders
Have your own crew? O’Neil sells horse barn material kits with framing lumber, columns, trusses, metal, and windows and doors. Insulation and interior stud framing are optional. Each kit comes with detailed construction drawings. These are construction drawings, not structural or engineered drawings. Kits deliver across our service area and to Chicagoland. See our pole barn kits.
Planning for Future Growth
Many owners start with a few stalls and later want more stalls, an arena, or more storage. We can lay out your site and building so a future addition fits cleanly. Ask us about planning for the next phase now.
Serving Horse Owners Across the Region
We build horse barns in St. Louis County, St. Charles County, Jefferson County, the Metro East, and throughout Illinois and Missouri. Explore all of our agricultural buildings and our financing options.
Start Your Horse Barn
Tell us about your horses, your property, and how you ride. Call O’Neil Metal Buildings & Barndominiums at (618) 337-6100 or request a free quote.
Frequently Asked Questions
How do I choose a horse barn contractor?
Look for a builder who designs around your horses and routine, handles engineering and permitting, and can show past equestrian work. O’Neil offers turnkey design-build, including stamped drawings as required, permitting, and construction.
Do you build indoor riding arenas?
Yes. O’Neil builds clear-span indoor riding arenas, either standalone or connected to a stall barn. Our gallery includes a 60x176x16 riding arena in Wildwood, MO.
Is post frame a good choice for a horse barn?
Post frame is a strong, efficient system that suits barns and arenas well. For very wide spans, we can also use pre-engineered metal buildings.
Can you add stalls, tack rooms, and wash bays?
Yes. We plan stalls, aisles, tack and feed rooms, wash bays, grooming areas, and storage as part of the design.
Do you sell horse barn kits?
Yes. Kits include framing lumber, columns, trusses, metal, windows and doors, with optional insulation and interior stud framing. Kits come with detailed construction drawings, which are not structural or engineered drawings.
Where do you build horse barns?
O’Neil is based in Belleville, IL and builds within roughly 200 miles, including St. Louis, the Metro East, Illinois, and Missouri. Kits also deliver to Chicagoland.