Service area · New Hampshire
Metal buildings in New Hampshire.
We supply garages, pole barns, horse barns, workshops and more across New Hampshire. Our work reaches from the Massachusetts line and the Seacoast to the Lakes Region and the North Country, and anywhere else you’re building.
Building code
Statewide
Zoning
By city or town
Shed, no building permit
Up to 200 sq ft
No local inspector
State Fire Marshal
From the New Hampshire Building Code, RSA 155-A, and the local land use statutes, RSA 672 to 674.
What matters when building in New Hampshire?
Two buildings with identical dimensions can need different engineering and different permits depending on where they sit and how they’re used.
One building code
The state building code applies everywhere. Where a town has no inspector, the State Fire Marshal enforces it.
Towns zone
Most cities and towns zone. A few have no zoning, and a county board zones the unincorporated North Country.
Snow load
Snow loads climb with elevation and as you head north toward the White Mountains.
Big setbacks
Rural towns often push buildings 40 to 60 feet from the road. Some measure from the road’s center line.
Where you build changes the rules
New Hampshire sets one building code and leaves zoning to its 234 cities and towns. Here’s how it breaks down.
Permits
- One-story sheds up to 200 sq ft: no building permit.
- No local inspector? The contractor notifies the State Fire Marshal.
Zoning
- Size, height and setbacks vary by town.
- Some limit how many outbuildings a lot can have.
Agriculture
- State law says zoning can’t unreasonably limit farming.
- Some towns exempt farm buildings from height limits.
In New Hampshire, setbacks run big. Brookfield, Lyndeborough and Bethlehem push buildings 40 to 60 feet back from the road. We’ll site the building before we size it.
What usually fits which project
We start with what you’re building and work back to the structural system. Here’s where that usually lands.
Barns & storage
Tubular steel fits up to sixty feet wide. Past eighty, or with big doors and heavy snow, red iron takes over.
Insulated shop
It’s still tubular under sixty feet. Insulation costs the same per square foot whatever the frame is.
Drywalled shop or barndominium
Steel truss is the fit here. Drywall screws straight to the frame, so there’s no wood wall to build inside the steel.
Commercial & wide spans
Cold-formed suits permitted commercial work with a finished eave. Red iron takes over past eighty feet, including equipment and riding barns.
Across New Hampshire, snow load can shift the math more than anything else. See what a steel building costs for real per-square-foot ranges.
Local guides for New Hampshire
We deliver and install anywhere in New Hampshire. These guides cover the permit rules in individual towns, and we check the rules for every other address the same way.
Southern New Hampshire
Merrimack Valley & Monadnock
Seacoast & Lakes Region
White Mountains & North Country
Building somewhere that isn’t listed? Tell us the address and we’ll confirm who permits it and what applies. See our whole service area.
Common questions about building in New Hampshire
Do I need a permit for a metal building in New Hampshire?
Almost always. One-story sheds up to 200 sq ft skip the building permit, but zoning still applies everywhere. Give us the address and we’ll confirm.
Which building code applies?
The New Hampshire Building Code, RSA 155-A, applies statewide. Your town’s building official enforces it, or the State Fire Marshal where there isn’t one.
How big can a garage be?
It depends on the town. Goffstown lets buildings up to 600 sq ft sit closer to the line, Hollis draws the line at 250 sq ft, and Plymouth allows three outbuildings before a special exception.
Are farm buildings treated differently?
Often. Hollis exempts non-residential farm structures from its height limit, and Canterbury treats personal farm buildings under 2,000 sq ft as part of the home.
What sizes are most common in New Hampshire?
Sizes of 24×24 and 24×36 cover most residential projects. Farms and horse properties run larger. See what a steel building costs, or call 417-218-8348 for an actual number.
Start with a conversation
Let’s talk about your New Hampshire project.
Tell us what you’re planning and where you’re building. We’ll help you work out the next steps.
- Tell us what and whereSend us the size, how you’ll use the building and the address.
- We check the siteWe confirm who permits the address and which code and loads apply.
- You get a clear recommendationWe recommend the frame that fits and price it against the alternatives.
Or call
417-218-8348