About Us


In 1987, Doug Hepner started in his garage. Today, the IWS. facility is 37,000 sq. ft. of Lean Manufacturing space, using state-of-the-art technology everywhere we can. Moving from Doug's handshake deals with customers and hand drawings on vellum paper, to today's use of electronics and automation of everything from submittals, contracts, project tracking, and high-level communication with our GCs.

IWS has definitely kept pace with technology. However, when building and coordinating the highly detailed features that IWS specializes in, we cannot forget our craftsmen who make it all possible. Hundreds of years of combined knowledge and experience allow IWS to be recognized as one of the premier architectural millwork companies in the Pacific Northwest. The tenure and loyalty of not only our employees but of our customers also make the IWS culture one to be proud of.


To be recognized as the leader in the design and manufacture of custom architectural millwork in the Pacific Northwest,
widely recognized for our exceptional engineering and project management skills.


IWS has built a staff of seasoned personnel with a reputation for broad experience, pride in craftsmanship and the ability to deliver both complicated and off-the-shelf solutions to our customers. The integrity of what we supply from the bid to the installation shows in our professional approach and our desire to supply the very best.

Our key to success comes from running a well-managed business that supports our dedicated family of employees and includes our extended family of vendors and customers. The IWS culture is everything to us.

We take the team approach to everything we do. We involve all the right people and create a winning attitude that allows long-term relationships to be built and maintained. IWS works under the belief that our reputation and signature are on every piece we deliver and that’s the way we like it!

IWS applies the same quality to production runs as it does to custom runs, ensuring that the inside is as strong, as the outside is beautiful. That is one reason our customer base is so loyal — if we say we can do, we do it. Our slogan is, "If you can draw it, we can build it."


Cabela’s - World's Foremost Outfitter Lacy, Tulalip, WA & Tualitan, OR
UW - Husky Union Building (HUB) University of Washington, Seattle
Microsoft Cafeterias and TI Numerous Locations
Redhook BrewLab Seattle, WA
Silver Reef Casino Ferndale, WA
Google Projects Kirkland and Seattle, WA
Ivar's Acres of Clams Pier 54, Seattle, WA
Tacoma Art Museum Tacoma, WA
South Satellite - Seatac Intl Airport Seatac , WA
UW 3.1 and UW 3.2 Medical Facility Seattle, WA
Tulalip Casino Tulalip, WA
UW - Lander Hall University of Washington, Seattle
Amazon (Numerous TI Projects) Seattle, WA
Clearwater Casino Bremerton, WA
Ilani Casino Resort Ridgefield, WA
Spokane Tribe Casino Airway Heights, WA
Aegis Senior Living Numerous Locations
First Tech Credit Union - Corporate Portland, OR
Pemco Insurance - Corporate Seattle, WA
Starbucks - Corporate (SODO) Seattle, WA
Cactus Restaurants & Tavern-Hall Numerous Locations
Broadstone Capital Hill Seattle, WA
One Lakefront Apartments Seattle, WA
Line & Lure Restaurant Ridgefield, WA
Merrill Gardens - Senior Living Numerous Locations


"Maybe no one here has a Master's Degree in anything, but they are true masters." – Ed Basher

The June 2019 edition of 425 Business featured a piece about IWS that paid homage to 50+ dedicated 'Artisans' carrying on the traditions and craftsmanship that Doug and Tracey Hepner began in their garage back in 1987. Continue Reading >

425B 2019 June Cover
425Business June 2019 42 43



A member for many years, IWS builds our products to meet or exceed the quality standards and specifications set forth by this well recognized organization.


Licensed and certified under AWI's Quality Certification Program, we continually evaluate and verify our worker's abilities to manufacture and install a wide variety of millwork in accordance with comprehensive, time-tested and performance-proven industry standards.


Products manufactured under LEED and or FSC® guidelines are nothing new to the IWS team. We can utilize reclaimed and recycled products along with the use of No Added Urea-formaldehyde resins and low volatile organic compounds (VOCs).


Local King and Snohomish county association that promotes the networking of construction related businesses.


We hit our TCO date last month on the Triangle. Your willingness and ability to completely re-sequence your work and install the lobby cloud was a key factor in us hitting the date. It’s been a while since TCO, but I figured it’s never too late for a thank you. We’ll look forward to the next one with your fabulous team. Until then, all the best.

Frank Stauff - Vice President, Compass Construction

It was a pleasure working with Interior Wood Working on the Redhook Brewlab project.  The design required a lot of coordination and specialty detailing/finish requirements.  We were very happy with how IWS took the extra steps to realize our design intent, while also staying ahead of the game on a very tight schedule.

Caroline Brown - Graham Baba Architects

My experience with IWS was seamless and professional.  The coordination by the project manager was timely and responsive.  This is the best casework team I have worked with in many years.  In particular, our project was very detailed as far as the design and the IWS team was responsive to our concerns. I hope to work with this group again in the near future.

Mercedes Fernandez - Mercedes Fernandez Interior Design

We’ve had the pleasure of working with IWS for well over a decade.  Their commitment and quality workmanship have made them an integral part of our success; we consider them both partners and friends!

Rob Miller - R. Miller, Inc.

On behalf of Ownership, thank you for the extraordinary effort and commitment by IWS. I was especially impressed with how efficiently your crews worked to complete the Food Market and the Line & Lure restaurants when we were running short on time. Thanks for your dedication.

Dan Kelly - Keating Consulting

IWS is a regional leader in fine woodworking, from concept to completion. They helped our project stay on track by driving design completion through smart questions and sophisticated 3D modeling.  Once the details were fine-tuned on paper, they followed through with a safe, timely and quality installation.

Zachary Brehm - Swinerton Builders

IWS was a team player from start to finish on the project. They took a proactive approach in proposing alternative materials and design details that ultimately led to a higher quality product for the Owner. Whether it is their factory, or their field staff, IWS delivers an exceptional product.

Jared Gothard, AC - PCL Construction Services, Inc.

Working on a project with a complex schedule for the millwork and architectural metals would have been challenging had we not selected IWS as our team member. The IWS team's attention to detail both in design and construction provided the project stakeholders with a far better product than anticipated and found ways to meet difficult milestones. Surely a group we plan to work with on future endeavors.

Ben Reinhardsen - PCL Construction Services, Inc.

IWS was truly a dream to work with. They produced beautiful work and their team was always on their toes. Their design and engineering were top notch when unique and difficult items were added to their already exhaustive scope. Their install/field team was super flexible and Robi was fantastic to work with. Can't wait for the next project with IWS!

Elizabeth Roberts - Holland Partner Group

We have worked with IWS on several projects, all of which require high end, quality craftsmanship with fast paced schedules. IWS has always come through for us and has proven to be a partner we can rely upon.

Olin Wick - Foushee

Thank you for placing our project is such qualified hands, our Project Manager was knowledgeable, thorough and very personable.

Emmett Boyle - Silver - Silver Cloud

IWS was honest and open with us and made suggestions to improve the project and delivered on or ahead of schedule..

Bob Donegan - Ivars at Pier 54

The IWS team was outstanding to work with.

Jim Bray - WG Clark Construction

The can-do attitude paired with the technical skill and expertise of IWS could not have been better for our project.

We have always been thoroughly impressed by the quality of the finished products by IWS. The key difference is their people. They take a genuine interest in their customers and their owners  are actively involved in every facet of the business. We would recommend them without reservation.

Matt Galvin- Proprietor, Pagliacci Pizza

Working with IWS on a number of projects has been a fantastic experience from start to finish. The level of quality and installation is always first class. We look forward to many more years ahead.

Mike Quinn- Quinn Development

We love working with IWS. They aren't just a sub-contractor for casework, we consider them part of our design team. Their knowledge of materials, techniques and installation make them a huge asset in design development. Most importantly, they are resourceful.

Shannon McNutt - Mesher Shing McNutt

We have been working with IWS since the late nineties and have had the pleasure of watching their business grow along with ours. We have relied on IWS for many difficult projects and they have always performed. We have come to trust their expertise and that the final product will always be of the highest quality. It is important to us to work with good people and Doug, Tracey and Dan are very good people.

Paul Carter - Wilcox Construction

IWS is the first custom working company I contact when I need a solution to a challenging custom woodwork
project They have always come up with both cost effective and high quality solutions to meet the needs of the project.

Les Martin - Swinerton Builders

They add to the partnership by their Care Level, Creativity, Timeliness, ability to hit budgets and find solutions, along
with producing a quality End Result. I plan to continue to use them in the future and am very happy to be a reference for them.

- Schwartz Brothers Restaurants

Interior Woodworking Specialists has provided the highest services from design to the end product to the Tulalip Resort
Casino over the past twelve years, and would recommend this firm to anyone one who wants a superior product for their business.

Gary Rutherford - Tulalip Casino

The unique ability of IWS to offer turn key millwork packages has been a key component to completing these highly detailed projects at the level of quality the client is seeking to achieve. Just as helpful are the comprehensive pre-construction services your team brings to the table including estimating, design and value engineering.

Finally, the IWS installation teams take a high-quality product from your shop and does a marvelous job of turning the vision into reality. Invariably, the project schedules get compressed by the time finish carpentry is ready to install. Your project managers, (Ben Shoop especially), have always risen to the challenge and helped our teams meet their deadlines.

We very much appreciate the spirit of partnership IWS has brought to the Aegis account and we look forward to working with your team on many more successful projects in the future.

Frank Stauff - Vice President, Compass Construction