Pole Barn & Post-Frame Buildings in Montana

Montana Post-Frame Specialists

Custom-built shops, barns, arenas, and commercial structures designed for strength, speed, and long-term use.

Post-frame buildings, commonly called pole barns or pole buildings, are engineered structures that use large vertical posts instead of a continuous foundation. This makes them a practical choice for agricultural, commercial, and working-use buildings across Montana, offering wide-open interiors, faster build times, and lower material costs without sacrificing structural strength.

H&H Custom Buildings is a post-frame builder in Helena, Montana, specializing in custom pole barns and agricultural structures. Founded by father and son Al and Lucas Irvin, the company is based in East Helena and completes 25 to 30 custom builds each year. Each project is designed around the specific needs of the site, use, and property.

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Post Frame HERO - Fat Horse Barn - HH Custom Buildings

Why Choose Post-Frame Construction in Montana

The Case for Post-Frame

Post-frame is the right construction method for most agricultural, commercial, and working-use buildings in Montana.

Built for Montana Conditions

Post-frame buildings are engineered to handle heavy snow loads, sustained winds, and extreme temperature swings. Structures are designed to meet the exact load requirements for your location, so you’re not left dealing with structural issues after the build is done.

Faster Build Times

Without a continuous perimeter foundation, there’s less site preparation, fewer materials, and fewer delays. That means your building moves from planning to usable space faster, so you can get back to work sooner.

Cost Efficiency Without Compromise

Post-frame reduces both labor and material costs through a simpler, more efficient build process. The result is better overall value without sacrificing strength, durability, or long-term performance.

Flexible, Open Interior Design

With no load-bearing interior walls, you get complete flexibility inside the structure. Whether you need wide equipment access, divided work areas, or room to expand later, the space can be configured to fit your layout and your future needs.

Post-Frame Building Types We Build in Montana

The Case for Post-Frame

H&H Custom Buildings builds post-frame structures across Montana, each one designed for its specific use. Not sure which type fits your project? Start with the options below.

Agricultural Buildings

Custom barns, hay storage, equipment sheds, and working farm structures built for Montana operations. Our post-frame agricultural buildings are designed around daily use, with the right layout, ventilation, and durability to handle years of demanding work on Montana land.

Shops & Garages

From personal garages to large-scale workshops with multiple bays, the layout is built around your workflow. Well-planned pole barn shops and garages account for door sizing, interior clearance, and utilities before construction begins.

Equestrian Buildings & Arenas

Horse barns and riding arenas require more than just square footage. Stall layout, airflow, and clearance all impact daily use. Our post-frame equestrian buildings are designed to support both horses and the people working with them every day.

Commercial & Storage Buildings

Warehouses and storage facilities need to function reliably from day one. Our post-frame commercial and storage buildings are designed for access, workflow, and long-term use.

Recreational Vehicle Storage

Recreational Vehicle Storage buildings provide a dedicated space to house boats, RVs, campers, ATVs, motorcycles, and other toys that Montana enthusiasts need to store. These post-frame structures offer the covered protection necessary for safely storing recreational equipment while maintaining easy access for outdoor adventures.

Airplane Hangars

Hangars require precision in both layout and structure. With clear-span interiors and precise door sizing, our post-frame airplane hangars are built to withstand Montana conditions while providing reliable space for aircraft storage and access.

Hobby Farm & Ranchette

Hobby farms and ranchettes are small acreage properties (typically 2-30 acres) used for leisure, self-sufficiency, or small-scale agricultural projects rather than primary income. They're often located near urban areas and allow owners to raise animals, garden, or enjoy rural living.

Hobby Farm and Ranchette - HH Custom Buildings

Our Post-Frame Building Process

Every building we deliver follows a defined process, from initial design through final construction, so nothing gets missed and nothing gets left unfinished.

How it Works

Design & Planning

It starts with how you plan to use the building. From there, we work through layout, door placement and sizing, interior configuration, roof pitch, and any functional additions such as bathrooms, insulation, loft space, or living quarters. The goal is to get every detail right on paper before anything gets built.

Engineering & Permits

We finalize your design, sign the contract, and schedule your build. We confirm scope clearly so there are no surprises after signing.

Construction & Turnkey Delivery

Our crew handles the build from start to finish. When we’re done, you have a completed, usable structure, not a project that requires you to chase down other contractors to finish the work. Timelines are set during the planning phase, and we do our best to hold to them.

Why Choose H&H Custom Buildings

Why H&H

Twenty-one years in the Helena Valley means our reputation is built on the same foundation we’ve laid. Here’s what that looks like in practice.

Family-Owned and Operated Since 2005
H&H was founded in East Helena by Al and Lucas Irvin, and it's still run the same way. You work directly with the people who run the business, not a sales team that hands you off to a crew you've never met. Lucas Irvin oversees every project.
Post-Frame Specialists. Nothing Else.
This is the primary type of construction we do. That means every decision we make, from engineering to material selection to scheduling, is informed by more than two decades of building post-frame structures specifically in Montana. We don't dabble. We specialize.
Right-Sized Volume for Real Attention
At 25 to 30 builds per year, we run an efficient operation with enough volume to stay sharp and enough bandwidth to give each project real attention. You're not one of 200 jobs scheduled 14 months out.
Shell to Turnkey. One Contractor.
We handle design through completed construction. If you want a finished interior, like electrical, insulation, plumbing, walls, or loft, our crew handles it. One contract, one point of contact, no coordination gaps between trades.
Honest Estimates, No Surprises
We don't lowball to win the job and adjust later. Your estimate reflects the actual scope, and we'll be upfront if the project isn't the right fit for what we do. Licensed and insured.

Serving Helena and Surrounding Montana Communities

Why H&H

H&H Custom Buildings is based in East Helena and serves property owners throughout the Helena Valley and surrounding Montana communities within a 90-minute radius. We’ve completed pole barn and post-frame projects across Lewis and Clark County and throughout Central and Western Montana.

Our service area includes:

Helena

East Helena

Bozeman

Butte

Townsend

Montana City

Anaconda

Whitehall

Soil conditions, elevation, snow loads, and permitting requirements vary across the state, and the buildings we construct are designed with those factors in mind.

If your project is outside our standard service area but involves a larger build, reach out to us. We’ll review the scope and let you know if it’s a fit.

Frequently Asked Questions About Post-Frame Buildings in Montana

Want to know more?

What is a post-frame building used for?
Post-frame buildings are used for agricultural storage, workshops, pole barn shops, equestrian facilities, riding arenas, commercial storage, and airplane hangars. Because there are no load-bearing interior walls, the layout can be configured for almost any working use.
How much does a post-frame building cost in Montana?
Cost varies by size, finish level, foundation type, and site conditions. A basic shell typically starts at $40,000–$80,000 for standard sizes. Finished interiors, specialized uses, or difficult sites increase the total. Your estimate from H&H will reflect your specific project, not a generic range.
Are post-frame buildings structurally sound in Montana's climate?
Yes. Post-frame buildings are engineered to meet Montana's specific snow loads, wind requirements, and temperature extremes. They are not inferior to stick-built construction — they use a different structural system that is well-suited to the load conditions of this region.
What size pole barn do I need?
It depends on use. Equipment storage typically starts at 40x60. Shops with multiple bays often run 60x80 or larger. Agricultural buildings are sized to the operation's hay volume, livestock count, or equipment inventory. We'll help you work through the right dimensions before the estimate is built.
What's the difference between a post-frame building and a pole barn?
They refer to the same construction method. Post-frame is the correct industry term. Pole barn and pole building are the common names most people use. Both describe structures built with large vertical posts as the primary structural support, rather than a continuous perimeter foundation.
Do post-frame buildings require a concrete foundation?
Yes, in most cases. Permit requirements vary by county and project scope. H&H coordinates the engineering documentation and guides you through the permitting process for your location. We do not skip permits; the engineering is designed to meet Montana building codes from the start.
Can I customize the layout of my post-frame building?
Yes. We design buildings based on your layout, site conditions, and requirements. Door placement, interior configuration, clearance heights, insulation, electrical rough-in, and exterior finish are all part of the planning conversation before any contract is signed.
How long does it take to build a post-frame building?
Most standard pole barn and post-frame builds are completed in 2 to 3 weeks on-site. Larger commercial structures or projects with full interior finishes may run 4 to 6 weeks. Your estimate will include a project-specific schedule, and we do our best to hold to it.

Ready to Build Your Post-Frame Structure?

Getting the building method right from the start makes a measurable difference in performance and longevity. Tell us what you’re planning, and we’ll help you design the right pole barn or post-frame structure and provide a clear, accurate estimate based on your actual needs.

Contact H&H today to start your estimate

Design Your Building

Or call us directly: (406) 227-2271