Steel Joist & Metal Deck Suppliers

Supplying high-performance steel joists & deck solutions that build America.

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Vanguard Academy. Moses Lake, Washington. NAC Architecture, Coffman Engineers, DCI, L&S, Moses Lake School District. © Copyright 2022 Benjamin Benschneider All Rights Reserved.

35 Years of Experience Distributing Steel Joist & Metal Decking

Together We Build

At ProSteel, strong relationships with contractors are at the core of what we do.

Our commitment is to deliver excellence at every stage of your steel joist or metal deck project—through competitive pricing, precise detailing, responsive service, and high-quality products.

Building from Coast to Coast

Your Steel Joist & Metal Decking Broker

Deck Products

ProSteel, Inc supplies high-quality, durable metal deck designed to meet the rigorous structural demands of your commercial builds. We partner with you to deliver reliable roof and floor deck solutions that ensure safety and stability from the ground up.

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Steel Joists

Our top-tier steel joists provide the essential, heavy-duty framework needed to build the structures that shape our communities. Backed by our precision detailing, we supply reliable joist systems tailored to maximize both your project’s budget and timeline.

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Local Deck Stock

As a proud Spokane-based supplier, we understand the importance of having materials on hand to keep your job site moving without delay. We maintain a readily available local inventory of metal decking to provide unmatched service and quick turnarounds for our regional contractors.

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We Supply the Brands You Trust

New Millenium Steel Product Distributor for ProSteel, Inc Spokane, WA
ASC Steel Deck Distributor for ProSteel, Inc Spokane, WA.png
Verco Decking Steel Product Distributor for ProSteel, Inc Spokane, WA.png
Vulcraft Steel Product Distributor for ProSteel, Inc Spokane, WA.png

Regionally Stocked and Nationally Served

Our local supply and office is located in Spokane, WA. We currently work with and supply steel to contractors in the following states and are always expanding to new regions. ProSteel has supply and distribution relationships for Alaska, Arizona, California, Colorado, Hawaii, Idaho, Montana, Nevada, New Mexico, Oregon, Texas, Utah, Washington, and Wyoming

Steel Joist & Metal Deck Supplier

Recent Projects by ProSteel, Inc.

Civic Center Marysville, WA

Serving as a "one-stop shop" for city services, the Marysville Civic Center opened in 2022 and combines City Hall, council chambers, police headquarters, and municipal court, aiming to modernize civic operations and boost downtown revitalization. ProSteel, Inc supplied all the steel joist and deck for this unique project.

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Lowe's Warehouse Kahului, Hawaii

Completed in 2017, the Kahului Lowe's was a project that ProSteel, Inc. provided all steel joists and deck. ProSteel, Inc. distributor network allows us to supply to both large corporations to local businesses.

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Primary Care Center Wasilla, AK

Providing comprehensive health services to the Mat-Su Valley in Alaska, the Valley Native Primary Care Center was opened in 2012. ProSteel, Inc. provided all the steel deck for this important community health hub.

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Supplying Steel Products Since 1991

National Steel Joist & Metal Decking Supplier based in Spokane, WA

About ProSteel, Inc.

Established in 1991, ProSteel Inc. is a premier, privately owned supplier of steel joists and metal decking for the Western United States. Based in Spokane, WA, we partner with contractors to build the structures that shape our communities. We know that every new building creates a lasting sense of place, and we take pride in being a reliable part of that process.

We highly value our relationships with contractors and are committed to delivering excellence across the board. When you partner with us, you can expect:

  • Competitive Pricing: Helping you maximize your project’s budget.

  • Precision Detailing: Ensuring accuracy and safety from the ground up.

  • Top-Tier Products: Supplying high-quality, durable steel joists and metal decking.

  • Unmatched Service: Providing dedicated support at every stage of your build

Vanguard Academy. Moses Lake, Washington. NAC Architecture, Coffman Engineers, DCI, L&S, Moses Lake School District. © Copyright 2022 Benjamin Benschneider All Rights Reserved.
Our Approach to Projects

We partner closely with contractors to deliver excellence at every stage of the build. By combining competitive pricing with precision detailing and unmatched service, we ensure accuracy and safety from the ground up while helping you maximize your project's budget.

An Experienced Team You Can Count On

Established in 1991, ProSteel, Inc. is a premier, privately owned supplier of steel joists and metal decking for the Western United States. With decades of industry experience, we provide the dedicated support and top-tier materials you need to keep your operations running smoothly and successfully.

In-Stock Metal Deck in Spokane, WA

Need materials fast? We carry an on-site inventory of metal decking at our Spokane location, making it easy to supply smaller projects or handle quick-turnaround jobs for Eastern, WA clients.

Community Values, Professional Results

Based in Spokane, WA, we understand that every new building creates a lasting sense of place. We take pride in supplying the essential structures that shape our communities, blending our strong local values with the high-quality, durable results your projects demand.

Let's Build Together

We would love the opportunity to bid on your upcoming jobs. Please add ProSteel Inc. to your bid list, and contact us today to get exactly what you need for your next project!