01 / 06 · Commercial
Union Station Annex
- Location
- Denver, CO
- Size
- 348,000 sq ft
- Budget
- $112M–$124M
- Timeline
- 29 months
- Completed
- 2025
Construction / General Contractor · Denver, CO
We build what lasts.
Commercial + residential construction since 1981.
Offices, plants and homes across the Front Range — 403 buildings and counting.
Built for generations. See our work
01 · Who we are
Family-owned. Self-performing concrete and carpentry. Three offices across Colorado.
We don’t simply construct buildings. We create places designed to endure — with purpose, precision and permanence, for owners who plan to keep what we hand them.
02 · Sectors
Four ways we build
Offices, healthcare and hospitality in Denver’s busiest blocks.
We build in occupied, high-traffic places — next to hospitals, over transit, beside hotels that never close. Phasing, noise and neighbours are planned before the first shovel.
- projects
- 152
- built value
- $2.1B
- storeys, tallest
- 31
Distribution, manufacturing and cold storage along I-70 and I-76.
Tilt-up and pre-engineered steel buildings delivered on aggressive schedules, with super-flat floors and the power and process systems owners actually need.
- projects
- 84
- sq ft
- 21M
- clear height
- 52 ft
Mountain homes and multi-family buildings built for snow load and altitude.
From a ski-in house in Vail to 300 apartments on Colfax, we bring the same superintendents and the same quality checks to every home we build.
- projects
- 118
- homes
- 2,600
- highest site
- 9,600 ft
One contract, one team, and a guaranteed price early.
We bring the architect and engineers onto our team, test the budget while the design is still flexible, and stay accountable for the result.
- projects
- 49
- avg. time saved
- 14%
- contract
- 1
Figures are demo values.
Featured projects
Project names, budgets and figures are demo values. All projects
03 · By the numbers
Since 1981 we have completed 403 projects, built 27 million square feet and handed over 96% of them on time.
| Year | $M |
|---|---|
| 2016 | 212 |
| 2017 | 238 |
| 2018 | 261 |
| 2019 | 304 |
| 2020 | 286 |
| 2021 | 331 |
| 2022 | 372 |
| 2023 | 418 |
| 2024 | 456 |
| 2025 | 497 |
04 · Process
Plan. Permit. Build. Hand over.
01 / 04
Plan
Every project begins with a clear understanding of the site, the people and the purpose behind the building.
- Site study
- Budget model
- Schedule
02 / 04
Permit
Drawings, engineering and agency reviews move in parallel, so approvals arrive when the schedule needs them.
- Code review
- Agency meetings
- Trade buy-out
03 / 04
Build
Our own superintendents run every site, with a safety brief before each shift and weekly owner walks.
- Self-performed concrete
- Weekly owner walks
- Third-party QA
04 / 04
Hand-over
Commissioned systems, trained facility teams and a complete digital record — and a warranty walk at year two.
- Commissioning
- Digital O&M
- Warranty walk
05 · Safety & trust
Certificate of safety & assurance
Every worker goes home the way they arrived. Every owner is protected by bonding, insurance and a quality programme audited by third parties.
- Lost-time incidents, last 1.9M hours
- 0
- Experience modification rate
- 0.61
- Single-project bonding
- $180M
- Umbrella insurance
- $25M
- Builder’s risk
- Every job
- OSHA 30 supervisors
- 100%
- Licence
- Class A · Colorado
Issued January 2026 · WoodIron Safety OfficeDemo values
06 · A letter from our president
Dear future client,
My father started WoodIron in 1981 with a pickup truck, a cement mixer and a promise to answer the phone himself. For more than four decades we’ve combined engineering discipline with craftsmanship to build spaces that outlive trends.
We still self-perform the work that matters most, we still walk every site each week, and the people who sign your contract are still the people who pick up when something goes wrong.
We would be glad to build with you.
Margaret AshbyPresident, WoodIron Builders (fictional)
07 · Client words
What owners say
“They kept every light-rail track open for 29 months. Our tenants never knew a crane was overhead.”
Lena BrandtDevelopment Director · Wynkoop Partners (demo)“Weekly owner walks, honest schedules and a punch list of nine items. We will build with them again.”
Carla NuñezOwner’s Rep · Cherry Creek Living (demo)“Best-run site I have walked in thirty years. Clean, safe and on schedule every single week.”
Gary LindqvistBuilding Official (retired) · City of Golden (demo)“The guaranteed price came at 40% design and they beat it. That never happens in lab construction.”
Dr. Owen PikeVP Facilities · Flatirons Research (demo)“Phased hand-over meant our racking crews started ten weeks early. That paid for itself.”
Derek HaleCOO · Front Range Logistics (demo)“They told us about problems before we found them. That is the whole job, and they do it.”
Ana OrtizAsset Manager · Mile High REIT (demo)“Two winters at 8,200 feet and not one day of rework. The house is better than the renderings.”
Sofia & Mark EllisonHomeowners · Aspen (demo)“They restored every steel arch in the rail shed and still opened on the date we announced.”
Mei TanakaFounder · River North Market (demo)“Their prefab wall panels cut six weeks off framing. Neighbours barely noticed the build.”
Jonah WeissPrincipal · Studio Weiss Architects (demo)08 · Careers
Build your future with us
Contractors are always hiring — and we promote from the field. Flip a card to see the role.
-
CommercialProject ManagerCommercial · Denver, COProject Manager
Lead $40M–$120M projects from buy-out to close-out, own the budget and the client relationship.
Apply -
IndustrialSuperintendentIndustrial · Commerce City, COSuperintendent
Run the site day to day: trades, safety, quality and the three-week look-ahead.
Apply -
Self-performCarpenterSelf-perform · Front RangeCarpenter
Formwork, framing and finish carpentry. Paid apprenticeships and a path to foreman.
Apply -
CommercialField EngineerCommercial · Denver, COField Engineer
Layout, RFIs, submittals and quality — the best way to start a career in building.
Apply -
PreconstructionEstimatorPreconstruction · Colorado Springs, COEstimator
Conceptual and hard-bid estimates for commercial, industrial and residential work.
Apply -
Self-performConcrete FinisherSelf-perform · Front RangeConcrete Finisher
Slabs, walls and decks on our biggest jobs. Year-round work and overtime.
Apply
Next step
Have a project in mind? Let’s build it.
A senior estimator answers every enquiry within one business day. Or call +1 (303) 555-0181.