8" x 8" x 96" Trunk Duct

Lukjan Rectangular Duct – Precision-Built for Reliable HVAC Airflow

The Lukjan Rectangular Duct is a heavy-duty component engineered for consistent airflow and system integrity in residential, commercial, and industrial HVAC installations. Designed from galvanized steel with reinforced construction, this duct is built to deliver durability and efficiency where it matters most.

Performance Advantages

• Heavy-Gauge Material: Manufactured from 28-gauge galvanized steel with a G-30 zinc coating to resist corrosion and extend service life.
• Cross-Break Reinforcement: Factory-formed cross-breaks increase rigidity, minimizing vibration and maintaining duct shape under static pressure.
• Configuration Options: Available in loose-cleat, side-lock, and insulated styles for different project requirements.
• Seam Compatibility: Designed to integrate seamlessly with standard cleat and S-lock connections for secure installations.

Technical Specifications

• Material: Galvanized steel, G-30 coated
• Dimensions: 8" width x 8" height x 96" length (nominal)
• Gauge: 28 GA
• Styles Available: Loose-cleat, insulated, or side-lock

Installation Guidelines

Rectangular duct installation should be completed by qualified HVAC professionals to ensure compliance with SMACNA standards and local codes. Proper sealing with approved mastic or UL-rated tape is critical to minimize leakage and maintain efficiency. Contractors should allow for thermal expansion and confirm structural support is in place before final fastening.

Contractor Notes

For Professionals: The Lukjan rectangular duct provides a consistent, machine-formed product suitable for large-scale duct systems. Its rigidity and corrosion resistance reduce callbacks and ensure long-term reliability on site.

For Advanced Installers: While the duct can be field-modified, precise cutting and sealing are required to maintain performance. Always follow manufacturer recommendations for fastening and support spacing.

Reliable Ductwork for Demanding HVAC Projects

The Lukjan Rectangular Duct is engineered to provide consistent airflow and durability across a range of applications. Built to industry standards and manufactured with precision, it’s a proven choice for professionals who demand quality on every installation.