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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.

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

Regular Hours

Sat - SunClosed

Extra Phones

Primary Phone: (206) 622-2081

Phone: (206) 343-1366

Phone: (206) 395-2905

Phone: (206) 438-9775

TollFree: (800) 835-4545

Payment method
cash, master card, visa, check
Industrial District, Greater Duwamish
Other Emails

Metal-Wholesale & Manufacturers, Steel Processing, Metal Specialties, Steel Fabricators, Steel Distributors & Warehouses


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