Steel Building Experts — Delta, CO
Engineered steel structures for the Western Slope and beyond.
How It Works
With us you get support throughout the entire process.
Configure your building in 3D with our interactive designer before committing a dollar. See every dimension, every detail. Iterate fast, no surprises.
NatMar sources from a nationwide manufacturer network supporting Cold Formed, Steel Stud, Red Iron, and Tubular to ensure that you get the best materials, at the best price point, for your specific project.
Whether you’re building it yourself, have a different crew, or are in the Western Slope and are using ours — you can lean on our years of experience to assist the construction process.
What We Build
Whatever you need space for — residential, commercial, or agricultural — NatMar can help you design, supply, and build. Browse by what you’re building.
Barns, hay storage, livestock shelters, equipment buildings, and riding arenas built for Colorado’s demands — heavy snow loads, wide spans, hard daily use.
Explore Agriculture →
A barndominium is steel-framed, finished living space, often within a large shop or garage area. Usually wide open floor plans, fewer interior walls, and way more durability than traditional stick-built homes.
Explore Barndominium →
Hobby shops, mechanic shops, home garages — the place you spend Saturdays. Wide clear spans, tall doors for lifts and equipment, insulated walls for year-round use, and all planned around how you actually work.
Explore Workshop →
From a simple open-walled single-vehicle carport to a fully enclosed multi-bay garage. We size to your vehicle (or your collection), add side walls when you want them, and finish to match your home or shop.
Explore Carport/Garage →
Aircraft need clear spans, tall doors, and open floors. We build hangars for private owners and commercial use — starting with your plane(s) and desired hangar door, then designing around what matters most.
Explore Hangar →
Warehouses, distribution centers, manufacturing facilities, and office buildings designed for scale, speed, and decades of uninterrupted use.
Explore Commercial →
We’ve built single-row 5×10 unit blocks and multi-building campuses with climate-controlled bays. Steel means no rot, no pests. We’ll design your buildings the right way, whatever your storage needs.
Explore Storage →
When you need a backyard storage building that won’t rot, won’t need painting, and won’t need replacing in 10 years, steel is the right answer. We’ll design your shed to fit your space — for residential and small commercial.
Explore Sheds →
Tall bays, wide doors, and weather protection for the biggest rigs — Class A motorhomes, fifth-wheels, boats, and toy haulers.
Explore RV/Boat →
Accessory dwelling units with steel frames. A built-to-last investment for your ADU needs.
Explore ADUs →
Sometimes a project doesn’t fit a standard category. Let us know what you need and we’ll turn it into a reality.
Start Custom Design →Design Your Build
The versatile workhorse — covers most projects and most budgets
Light-gauge steel rolled into C, Z, and hat-section members. More cost-effective than red iron, faster to deliver, and flexible enough for shops, barns, garages, and barndominiums.
Heavy-frame steel for the largest spans and tallest builds
Engineered I-beam columns and rafters welded into a portal frame. The premium choice for hangars, arenas, and warehouses where maximum height and clear span aren't optional.
Building examples
Each card is a real NatMar build template — hit "Design this building" to open it in our 3D designer right on the page and start customizing.
Workshop
Tall American barn-style shop — long footprint for multi-bay layouts, high ceiling for lifts, vertical storage, or hobby work that needs serious clearance.
Commercial
Drive-through auto shop layout with an attached office lean-to — service bays plus front-of-house under one roof.
Carport / Garage
Single-bay garage with full-height overhead door — sized for a full-size truck, RV, or compact workshop.
Agriculture
Open-sided ag layout with a single-slope roof — sized for hay storage, equipment cover, or animal shelter with quick drainage and clean snow shed.
Testimonials
“Nate and his experienced crew did a fantastic job erecting our 35' x 40' steel shop. I found NatMar through an internet search. I selected NatMar because they were local, displayed excellent expertise, and were competitively priced. Their communications and administration were flawless. The crew was always punctual, polite, and worked with care and attention to detail. We had some challenges along the way; however, everything was dealt with without any fuss or penny-pinching.”
“Nathan and his crew are top notch! They were able to fit in my small project between their bigger jobs which got me finished real quick. They do great quality work and I would highly recommend NatMar to anyone.”
“Complete project was good quality, on time, on budget and craftsmen were very professional. If I could find anything not perfect would be the screws scattered around post completion which is petty. Great job guys!”
“Nathan Margosian of NatMar Construction and his crew have been nothing but excellent. They have just completed a third building for me in the last year. Nathans customer service, punctuality at completion on time, and completing on budget is unmatched, all at a very fair and reasonable rate. I highly recommend Nathan and NatMar Construction for any of your needs for metal buildings.”
“NatMar Construction is the best in Western Colorado! Amazing customer service from first call through final build! Excellent company, highly recommend!”
“Nathan and Braden are working on a project of ours. Very impressive work! Nice to see such care taken on a construction project.”
“Excellent work and attentive to detail. Crew was cordial and easy to work with. Building is magnificent! Looking to build an "A" frame metal barndaminium. Fun!!”
“Great group of people! Their work is phenomenal & it truly shows they care. Would recommend to anyone for all metal building needs!”
“Thank you Nathan for your expertise and efficient building process. I look forward to doing business with you again.”
“Great assembly job and went quickly, even though it rained a couple of days. Good job, guys!!”
Ready?
Tell us what you’re building. We’ll get back with a custom quote.
