Accessory & Storage Buildings
Residential storage and garage solutions built with Sherman quality.
Accessory and storage buildings are post-frame pole structures built for the things that matter outside your house — vehicles, RVs, boats, lawn equipment, snowmobiles, tools, and seasonal gear. Sherman Buildings engineers every garage and storage building to the specific snow and wind loads for your Minnesota or Northwest Wisconsin site, with wide overhead doors, ground-contact pressure-treated columns, and finishes designed to match your home.
Built to Match Your Home and Your Stuff
From single-car detached garages to large multi-bay storage buildings, Sherman Buildings has designed and built residential accessory structures across Minnesota for 50 years. Post-frame construction delivers superior strength, faster build times, and long-term value — all customizable to match your home and property.
A post-frame garage or storage building gives you wide-open interiors without load-bearing walls in the way. That means you can park trucks, RVs, boats, and trailers comfortably — and still have room left for a workshop, lawn equipment, seasonal storage, or a finished living space upstairs.
Sherman Buildings has been constructing residential accessory structures across Minnesota for 50 years. Our crews understand what homeowners actually need from a detached garage or storage building, and we build accordingly — on time, on budget, and built to last.
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Every Project Includes
Custom Layout
Bay widths, ceiling heights, door placement, and interior partitions are configured to your vehicles, equipment, and storage needs — no off-the-shelf templates.
Wide Overhead Doors
Overhead doors sized for trucks, RVs, boats, and trailers — single-car openings through extra-tall RV-clearance doors and multi-bay configurations.
Steel Roofing
Heavy-gauge, Kynar-coated steel roofing panels rated for Minnesota snow loads. Long service life with minimal maintenance.
Treated Lumber
Ground-contact pressure-treated posts and bottom plates anchor the structure for the long haul, even in wet or freeze-thaw conditions.
Insulation Ready
Framed to accept fiberglass batts, spray foam, or rigid foam if you want a heated, finished interior — now or later.
Snow & Wind Engineering
Every building is engineered to the specific snow and wind loads of your site — no generic specs that leave safety margins to guesswork.
Material That Lasts
Sherman supplies all materials from our own full-service lumber yard, which means tighter quality control and more consistent results than sourcing from multiple suppliers. Every garage and storage building uses the same high-quality components that have made Sherman buildings synonymous with longevity.
Steel roofing panels are heavy-gauge, Kynar-coated for UV and corrosion resistance, and available in a wide range of colors designed to complement your home. Treated lumber posts rated for ground contact form the structural core, anchored in concrete footings sized for your building’s specific loads.
Hardware — anchor bolts, truss plates, girt connections — meets or exceeds structural requirements. Nothing is underspecified. We’d rather overbuild by a margin than have a customer call us about a problem five years later.
Efficient Layouts for Real Garages
Clear-span interiors are the defining feature of a post-frame garage. Without interior columns interrupting the floor plan, you can pull a long-bed truck, a boat on a trailer, or a Class A motorhome straight in without maneuvering around structural posts. Widths from 24 feet up to 60 feet and beyond are achievable with engineered trusses.
Door choice and placement is where most residential garages live or die. We size overhead doors around the vehicles you actually own — 9′ or 10′ tall for standard cars and trucks, 12′–14′ tall for RVs, boats on tandem trailers, and lifted pickups. Single-bay, two-bay, three-bay, and split-side door configurations are all common, and we’ll lay out the bays so you can park and pull without choreographing every move.
If you plan to add a workshop bench, hobby area, lawn-equipment corner, or finished upstairs space, we frame for that from day one. Stairs, lofts, mezzanines, and partition walls can all be designed in — or framed for later if you want to phase the cost.
Built for Minnesota Weather
Minnesota demands more from buildings than most states. Ground snow loads routinely exceed 40 psf in central and northern Minnesota. Wind speeds, frost depth, and temperature swings from −30°F to 100°F all influence the engineering of a properly designed structure.
Every Sherman garage and storage building is engineered to the specific climate data for your county — not generic regional averages. Truss design, post sizing, anchor bolt spacing, and roofing attachment are all calculated to meet or exceed local building code requirements.
This isn’t just regulatory compliance. It’s the difference between a garage roof that holds up through a February blizzard and one that doesn’t. Our crew has been building in Minnesota winters long enough to know what matters.
Minnesota Engineering Standards
- ✓Ground snow load engineering (40–60 psf depending on location)
- ✓90+ mph wind speed design ratings
- ✓Frost-depth concrete footings (42–60 inches)
- ✓Pressure-treated ground-contact posts
- ✓Insulation-ready framing for finished interiors
- ✓Thermal movement allowances for steel panels
- ✓Condensation control with proper ventilation
Why Sherman Buildings?
50 Years of Experience
Sherman Buildings has been constructing post-frame buildings across Minnesota since 1976 — that's 50 years of proven craftsmanship and local expertise.
Fully Custom Design
Every project starts with your vision. We design around your site, your usage, and your budget — no cookie-cutter packages.
On-Site Lumber Yard
We operate our own lumber yard, so every build uses consistent, quality materials sourced and managed in-house.
Minnesota-Engineered
Our buildings are designed for upper Midwest snow loads, wind requirements, and frost depth — code-compliant from day one.
Family Business
Founded by the Kelling family, Sherman Buildings is a family-owned operation. You deal with real people who stand behind their work.
Free Consultations
Not sure where to start? We'll talk through your project, walk your site, and help you understand your options — no obligation.
Garage & Storage Building FAQ
What Our Customers Say
The team was on point from start to finish. Absolutely turnkey and phenomenal — I couldn’t be more pleased with the result.
First-class service all the way. The Mora crew was fast, professional, and a pleasure to work with.
They worked through horrid weather without missing a beat. The crew was a professional representation of everything Sherman stands for.
Ready to Start Your Project?
Let’s talk about your building. Our team offers free consultations with no pressure — just real advice from experienced builders.
Explore More Building Types
Sherman Buildings has been building quality post-frame structures for 50 years. Browse our full range of homes and pole buildings.
