SkeleCore® ETS™ Ultra-Large Diameter Fabric Duct System
SkeleCore ETS™ (External Tensioning System) is the first fabric tensioning solution designed for ultra-large ducting applications where metal ductwork has traditionally been the only option. Built for diameters from 90”–156”, it helps reduce system weight, simplify installation and lower structural demand. All while delivering the airflow performance, appearance and flexibility expected from DuctSox.
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How SkeleCore Works
Fabric tensioning applies consistent stretch across both the length and circumference of the duct. Traditional fabric systems rely on air pressure to hold their shape. When airflow drops, they sag, wrinkle and lose form. That leads to inconsistent performance.
SkeleCore eliminates that dependency with engineered internal or external tensioning. The system holds its shape with or without airflow, reducing movement to prevent visible sag and deliver consistent airflow from startup through operation.
How Your Facility Benefits
SkeleCore External Tensioning System (ETS) is the first fabric tensioning solution designed for ultra-large ducting applications where metal ductwork has traditionally been the only option. Built for diameters from 90”–156”, it helps reduce system weight, simplify installation and lower structural demand. All while delivering the airflow performance, appearance and flexibility expected from DuctSox.
- Reduced structural load: Can ease structural demands and simplify coordination.
- Lower installed cost: Less material weight, fewer rigging demands and a simpler install process.
- Simplified installation: Panelized fabric construction and external suspension help reduce lift requirements.
- Improved air distribution: Helps support more even airflow and quieter operation.
- Minimal condensation concerns: Helps avoid insulation-related condensation issues.
- Cleaner appearance at scale: More consistent look than bulky exposed metal ductwork, with added flexibility.
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Overview
Product Overview
SkeleCore ETS expands the SkeleCore family into ultra-large diameter applications from 90”-156”, where internal tensioning systems reach their limit and metal has historically been the default. It is the only fabric duct solution in this size range, giving engineers, contractors and owners a more efficient, adaptable alternative to large metal ductwork.
SkeleCore ETS is engineered to support structural stability and airflow performance at scale while helping reduce the weight, rigging burden and installation complexity associated with metal systems. It’s designed for extreme-diameter applications where metal ductwork has long been the standard.
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Specifications
Specifications
External fabric tensioning system for ultra-large diameters.
Diameter range: 90” – 156”
Construction: Engineered fabric system for large-scale air distribution.
Designed for: High-bay, open-ceiling and other large-format environments where traditional metal duct systems add weight and installation complexity.
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Applications
Applications
In these environments, SkeleCore ETS delivers large-scale fabric duct system performance with less structural burden, easier handling and more design flexibility than large metal ducting.
Ideal uses include:
- Stadiums and arenas: Supports bowl supply, concourses and perimeter throw applications.
- Convention and exhibition centers: Helps maintain comfort across large open spaces with consistent air distribution.
- Fieldhouses and indoor athletic facilities: Helps deliver even air coverage across large floor areas with reduced noise and drafts.
- Manufacturing and assembly plants: Moves high air volumes while accommodating equipment layouts and open floor plans.
- High-bay distribution centers: Provides steady airflow in tall spaces without adding significant structural weight.
- Aircraft hangars and transportation hubs: Distributes air effectively in very large environments where rigid metal systems are difficult to support.
Why Fabric Instead of Metal?
In ultra-large diameters, metal duct systems have remained the standard primarily because there has never been a practical fabric alternative. That leaves engineers, contractors and owners managing familiar trade-offs: heavier materials, higher structural demands, longer installation timelines, insulation requirements, and the cost and complexity that come with large rigid duct sections.
SkeleCore ETS changes that. It’s the only external fabric tensioning system designed for diameters above 90 inches. By combining engineered fabric construction with external tensioning, it’s the large flexible duct system that delivers significantly lighter ductwork, a simpler installation process, reduced structural burden, minimal condensation concerns and more variation than metal duct systems in large-scale designs.
Comparison Snapshot
Let's chat about your project!
When your project calls for ultra-large ductwork, SkeleCore ETS offers a proven alternative to metal with less weight, less installation complexity and more design flexibility for large-scale performance.