STLD vs LII Comparison

Steel Dynamics Inc operates as a domestic steel producer and metal recycler in the United States. The company's product portfolio comprises hot rolled sheet, hot rolled plate, painted sheet products, cold rolled sheet, and others. Its reportable segments are steel operations, metals recycling operations, steel fabrication operations, and aluminum operations. Maximum revenue is generated from its steel operations segment, which consists of manufacturing various steel products and numerous coating operations. Its primary sources of revenue are currently from the manufacture and sale of steel products, the processing and sale of recycled ferrous and nonferrous metals, and the fabrication and sale of steel joists and deck products.

Lennox International manufactures and distributes heating, ventilating, air conditioning, and refrigeration products to replacement (75% of sales) and new construction (25% of sales) markets. In fiscal 2024, residential HVAC was 67% of sales and commercial HVAC and Heatcraft refrigeration was 33% of sales. The company goes to market with multiple brands, but Lennox is the company's flagship HVAC brand. The Texas-based company is focused on North America after the sale of its European HVAC and refrigeration businesses in late 2023.