Timberline Steel was founded in 1958 as Steel Incorporated with a location in Commerce City, Colo. Timberline Industries, formerly McCallin Diversified Industries, was formed in 1995 to serve as the holding company and corporate resource center for four businesses: Timberline Steel, Timberline Fasteners, Timberline Plastics and Steel Storage Systems. The Timberline Industries staff includes...
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