In mybookOther Collection (edit)
Added to your other collection.
Removed From mybook!

We took this business out of your other collection.

Seaport Steel

Add to mybook

This listing has been
added to mybook.

This listing has been
removed from mybook.

Business Details



in Business

BBB Rating:
BBB Rating and Accreditation information may be delayed up to a week.

Regular Hours

Sat - SunClosed

General Info:
Founded in 1983, Seaport Steel is one of Seattle's largest independently owned structural steel and plate distributors. Its roots are established from Isaacson Steel in 1907. Isaacson was primarily a structural steel distributor. It conducted business in Seattle until it closed operations in 1983. At that time, Seaport Steel was formed by purchasing the inventory and equipment of Isaacson's Steel Service Division. In 1984, Seaport Steel bought the Steel Service Center. This plant specialized in steel plate and plate processing. By combining the two, Seaport is able to offer not only structural steel items but also cut and processed steel plate. Seaport Steel is a major supplier to construction, manufacturing and shipbuilding companies in the Northwest.
Extra Phones:

Phone: (206) 395-2905

Phone: (206) 438-9775

Phone: (206) 343-1366

Primary Phone: (206) 622-2081

Fax: (203) 343-1366

TollFree: (800) 835-4545

Payment method:
check, master card, visa, cash
Industrial District, Greater Duwamish
Steel Distributors & Warehouses, Metal-Wholesale & Manufacturers, Steel Processing, Metal Specialties, Steel Fabricators

More »

Less »


Hi there!
Be the first to review!
First-classBetter than mostAbout what I expectedNot the worst...Disappointing
Click to Rate
Share Review

Like this review? Share it on your social network to get the word out!

Map & Directions
More About the Business
Ad Banner
Fast service and steel processing is our specialty. We focus on plate processing and cut to size structural with advanced machinery. Our experienced sales staff can service your steel requirements ranging from stock length inquiries to supplying complete cut to size projects.
Send to Phone
Seaport Steel

3660 E Marginal Way SSeattleWA 98134

(206) 343-0700

Send this business listing as a text message to a mobile phone.


Your text message was sent.

To opt out at anytime, send the word STOP to YP411.

To get a help message, send the word HELP to YP411.

There was an error sending your text.

Please try again.

Terms: The recipient of this text message may incur charges depending on their wireless carrier. Not all carriers are currently supported.

Message Business

What would you like to know?



We were unable to send your message. Please try again later.

Add a New Collection
Oops! There was a problem saving the new custom collection.
Please try again.
Collection Name cannot be empty
Upload a Photo

Remaining Characters: 100

Remaining Characters: 500

We just redesigned! Do you like it?
× Not a Fan

× Thank You!