The ProSpan® Composite Deep Deck System is a high-performance structural floor solution engineered to deliver superior strength, fire resistance, and construction efficiency across residential, commercial, industrial, and institutional applications. Designed as a fully composite system, ProSpan integrates deep steel decking with a concrete topping to form a robust, two-hour fire-rated floor assembly that meets stringent building code and life-safety requirements.

ProSpan is compatible with all primary wall and framing systems, including cold-formed steel, structural steel, concrete, and masonry, allowing for seamless integration into a wide range of building typologies. The system’s deep deck profile enables longer spans, reduced structural depth, and fewer supporting members, resulting in material savings, faster installation, and improved overall project economy.

With a proven track record of nearly 1,000 successful installations, the ProSpan system offers exceptional reliability and predictable performance under gravity, vibration, and serviceability demands. Its high load-carrying capacity and composite action reduce deflection and enhance floor stiffness, making it well-suited for both occupied spaces and heavy-duty use conditions.

From a construction standpoint, ProSpan significantly accelerates floor erection by minimizing formwork, shoring, and on-site labour. The steel deck acts as a permanent form during concrete placement and contributes structurally once cured, optimizing schedule certainty and site safety. When combined with DMD’s integrated design-build approach, the ProSpan Deck System delivers a cost-effective, code-compliant, and durable floor solution from design through installation.