Montana’s Trusted Timber Frame Builders For Custom Outdoor Structures

Chinook winds can produce strong gusts and dramatic temperature changes along Montana’s eastern Rocky Mountain slopes

Montana’s Chinook Country Creates Distinct Wind Conditions

  • Chinook winds are warm, dry winds associated with the eastern slopes of Montana’s Rocky Mountains. They can produce large temperature increases and strong winds. In Loma, a Chinook event produced a 103°F temperature increase over January 14–15, 1972, one of Montana’s most notable temperature records. 
  • Because chinooks are shaped by local terrain, wind exposure can differ significantly from one site to the next even within the same region. That makes properly designed shade and shelter especially important for outdoor spaces exposed to Montana’s changing wind conditions.

Wind engineering of each of our structures gets matched to the specific site’s actual exposure and terrain funneling. Our standard engineering starts at 115 mph. Where the project requires a higher design wind speed, the structure is engineered for that requirement. Shade gets the same site-by-site thinking. Our ShadePrint™ standard targets 80–85% shade coverage, varying by orientation and time of day, so a patio on a chinook-exposed ridge still gets real relief from Montana’s summer sun.

Enforcement doesn’t disappear once you’re off the certified-jurisdiction map

State Building Code Enforcement Extends Beyond Certified Local Jurisdictions

  • Montana has a statewide building code, with enforcement handled either by certified local governments or by the state Building Codes Program where local governments do not have certified enforcement programs.
  • Certified local governments in Billings, Bozeman, Missoula, and Helena have certified building-code enforcement programs. The State Building Codes Bureau has jurisdiction over all other areas, so building-code enforcement continues outside certified local jurisdictions. 

Wherever your property falls — inside a certified city or under the state’s direct oversight — we engineer every structure and prepare the documentation it needs for code review.

A footing spec that works in one Montana city can fall short in the next one over

Frost Depth Requirements Are Set Locally, Not By One Statewide Number

  • Montana’s building code does not establish one uniform frost-depth number for every location. Local climatic and geographic design criteria can set the applicable footing depth. For example, Bozeman’s design criteria specify 36 inches for one-story construction and 48 inches for two-story construction.
  • A footing poured to one city’s minimum and assumed elsewhere in the state won’t necessarily sit correctly, below that area’s real frost line. 

Footings get engineered to the code-required frost depth for the specific jurisdiction, not a number borrowed from somewhere else in the state.

Our Timber Frame Design & Build Process In Montana

01

STEP 1 — Design Consultation

Define your project scope and site conditions

We assess your location, wind exposure, and snow load — whether you start from our Custom-Engineered Kit line or a fully bespoke design.

02

STEP 2 — Site-Specific Engineering

Engineered for Montana’s wind exposure and snow load

Every timber is cut in-house on our own CNC, not sent to a third-party fabricator, so the team that engineers your structure is the team that cuts it — with hand-shaping reserved for the arched beams and knee-brace curves a CNC can’t cut. The patented Dovetail Difference® (U.S. Patent No. 9,797,149 B2) interlocks the timbers without metal brackets or exposed fasteners — in company-commissioned testing, that joint holds roughly five times the strength of standard mechanical fasteners. That structural performance is backed by a limited structural warranty of 5 to 25 years, depending on series.

03

STEP 3 — Fabrication in Payson, Utah

Precision-built and pre-finished

Components are CNC-cut and shop-stained with a pre-applied, UV-rated Sherwin-Williams finish before delivery, so there’s no separate stain bill once it arrives. Most installs take an afternoon to a day thanks to pre-cut joinery.

04

STEP 4 — Delivery & Installation

Delivered statewide with flexible installation options

We coordinate freight delivery across Montana, from Billings and Great Falls to Bozeman, Missoula, and rural ranch properties, and support both contractor and DIY installation.

Note: Montana Permitting Requirements

We account for the site-specific requirements and build around local permitting and factors that can affect your project, including wind and snow load requirements, and can provide stamped drawings prepared by a licensed engineer where the project and jurisdiction require them.

Serving Communities Throughout Montana

We design and deliver custom timber structures across Montana, including:

  • Billings
  • Missoula
  • Great Falls
  • Bozeman
  • Butte
  • Columbia Falls

  • Helena 
  • Kalispell
  • Havre
  • Anaconda
  • Miles City
  • Polson
  • Belgrade
  • Livingston 
  • Whitefish
  • Sidney
  • Lewistown
  • Glendive
  • Hamilton

And communities statewide.

If you’re building seriously in Montana, we can reach you.

2026 SBA Utah District Manufacturing Small Business of the Year trophy
Just Announced · U.S. Small Business Administration

2026 SBA Utah District Manufacturing Small Business of the Year

National recognition for excellence in craftsmanship, client service, and small business leadership.

Map showing Western Timber Frame projects across the United States
Built Nationwide
7,000+ Structures Built Nationwide
28 Best of State Awards
Coast to Coast Projects Across the U.S. and Hawaii

FAQs About Timber Structures In Montana

Yes. Western Timber Frame designs and builds custom timber frame pergolas, pavilions, gazebos, and other outdoor structures for homeowners and businesses across Montana.

Yes. Western Timber Frame engineers structures around Montana’s site-specific wind exposure and regional snow load rather than relying on a single statewide assumption.

Yes. The design process considers the specific wind exposure and terrain at the project site, including areas affected by Chinook winds. Our standard engineering starts at 115 mph. Where the project requires a higher design wind speed, the structure is engineered for that requirement.

Yes. Montana does not use one uniform frost-depth number for every location. The applicable footing depth depends on the requirements for the specific jurisdiction and project.

Western Timber Frame fabricates its structures at its facility in Payson, Utah, before coordinating delivery to Montana.

Yes. Western Timber Frame delivers across Montana, including Billings, Great Falls, Bozeman, Missoula, Kalispell, and rural ranch properties.

Yes. Western Timber Frame supports both contractor and DIY installation options.

Western Timber Frame builds pergolas, pavilions, gazebos, arbors and trellises, cabanas, carports, boat and RV covers, and commercial structures.

Yes. Projects can start with a Custom-Engineered Kit or a fully bespoke design, depending on the project.

You can request a custom quote from Western Timber Frame through the contact page linked above.

What Our Clients Say About Us

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Diana P W
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Our experience with Western Timber Frame was excellent! It started with our sales representative Scott six months ago, who gave us a free pergola estimate and gave us space to think about it. We turned him down at the time, since we had drainage and other landscaping issues to solve before we could install a pergola. He graciously accepted our decision, which made us want to get in touch again when we were ready to install the pergola. Our project manager, David was easy to work with. He coordinated with our other landscapers to install footings in the middle of them redoing the paver patio. He also coordinated with them to find a way to install the posts, such that the wood would stay dry on top of the patio, but also we wouldn't be damaging the paver stones by putting screws in them. He also recommended an electrician who was able to wire our pergola to a nearby outdoor outlet. The installation crew was fast and detailed. They installed the pergola and touched up the paint in four hours! They were happy to have me point out spots to touch up. From when we signed paperwork to full installation and final walkthrough, it only took 4-6 weeks. We love the warranty as well. All-in-all, we had an excellent experience with Western Timber Frame. We are happy with our investment and would highly recommend them.
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Kristina Dickson
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Western Timber Frame is awesome! Beautiful job on my deck and pergola install. Very detailed oriented, responsive and worked with me on the unanticipated re-deck foundation due to rotting joists from 2007 deck. Also hooked me up with a solid electrician. Would highly recommend to anyone! Shout out to Tyrell and Brian, the two fellas I worked with!
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Craig Arbuckle
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We installed a pergola about 10 years ago. I noticed recently that one of the main boards for a privacy lattice had a big split in it. They offered to come out and check to see what could be done. They decided to replace that board and repair some of the broken lattice slats because there's a lifetime warranty. David and his team were awesome to deal with. They worked well with us to get the pergola back to their standard. David was so nice and so was his team.
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Joe Callahan
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Great quality products and we had the opportunity of meeting the owner. It's obvious there is a culture focused on delivering a great product.
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Michelle Call profile picture
Michelle Call
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We now have not one but two Western Timberframe structures that we LOVE! The first one was built in 2022 and we just held a wedding reception using the 20 x 20 pergola as the reception area for the bride and groom and staging for the first dance. Just this winter, 2024, we added a pergola to our back patio. It complements our large pergola beautifully! From the salesman who first knocked on our door to the creators who helped us realize our dreams, to the construction team, to the team who reached out to do the scheduling, everyone has been great! Dave has been particularly helpful in replacing some faulty pieces(some Trex pieces on the skirting) on our original pergola. A-MAZING! THANKS, DAVE, YOU'RE THE BEST! Our pergolas are beautiful!
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Scott Jacobson
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Darren Dum did a fantastic job for us from start to finish. He helped with the planning amd saw the project all the way through
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Corinne Bolduc
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We had Western Timber Frames create a pergola for our outdoor kitchen and they did a fabulous job! They showed up on time, cleaned up after themselves, were respectful of our existing plants and trees, and the color matched perfectly to our deck. We had one of our corbels split and they came right out to take care of it. Not only did they replace the one with the split but they replaced ALL four of them to make sure we didn’t have any future problems. We would recommend them to anyone and plan to have them return for another project we have in mind for our yard. Love it!
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STEPHEN BERGER
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Darren was amazing! The timber frame we had installed looks incredible! The quality and construction look like it will last for hundreds of years… Darren does a great job coordinating, scheduling and follow up through the entire process. I would absolutely recommend him and Western Timber Frame to anyone in the market!

National Timber Frame Expertise, Built in Utah

With 28 Best of State Awards, multiple Inc. 5000 honors, an HGTV Design Excellence Award, the 2026 SBA Utah District Manufacturing Small Business of the Year, and 7,000+ structures built nationwide since 2008, Western Timber Frame designs and builds custom, structural, real-wood timber structures for homeowners and commercial clients who want true craftsmanship, not off-the-shelf catalog designs.

Founded in Payson, Utah, our shop and engineering team are based outside Montana, but every structure is engineered specifically for Montana’s wind exposure and snow load, not adapted from a national template.

We’re not the least expensive option. We’re the option for clients who want a structure that still looks and performs exactly as it should decades from now.