10" x 8" x 96" Trunk Duct

Lukjan Rectangular Duct – Series 100 Loose Cleat Connection

The Lukjan Series 100 rectangular duct with loose cleat connection is manufactured from galvanized sheet steel and engineered for use in commercial and residential HVAC air distribution systems. This section provides consistent airflow performance and complies with industry fabrication standards for duct construction.

Application

Designed for use in supply and return air systems, the Series 100 duct is fabricated with loose cleat ends for field assembly. It is intended for straight duct runs and serves as a primary component in rectangular trunk line installations, ensuring stability and efficiency in both new construction and retrofit projects.

Performance Characteristics

• Material: Galvanized sheet steel, lock-forming quality
• Fabrication: Series 100, rectangular duct section
• Connection Type: Loose cleat connection system
• Coating: G-30 galvanized finish per ASTM-A653 CS Type B
• Compliance: SMACNA HVAC Duct Construction Standards

Installation Guidelines

Install per SMACNA guidelines with appropriate fastening methods. All seams and joints should be sealed with UL-listed duct sealant or tape to maintain airtightness and comply with energy code requirements. Support spacing must follow code standards to prevent sagging or misalignment during operation.

Advantages

• Professional Grade: Engineered for contractor use in commercial and residential systems.
• Durable Construction: Galvanized steel provides strength and resistance to corrosion.
• Efficient Installation: Loose cleat connection simplifies field assembly and reduces labor time.
• Code-Compliant: Meets ASTM and SMACNA standards for duct construction and performance.

The Lukjan Series 100 rectangular duct with loose cleat ends provides HVAC contractors with a durable, code-compliant solution for air distribution systems. Its heavy-duty galvanized construction and standardized connection system ensure long-term performance and efficient installation.