COMMERCIAL HVAC DUCT FABRICATION ON THE GULF COAST
Commercial HVAC duct is JMC Fabrication's highest-volume commercial product. From a 50,000 sq ft shop in Pascagoula, MS, we produce SMACNA-compliant galvanized duct in all classes for general contractors, mechanical subcontractors, and EPC firms, with in-house Revit BIM coordination and the regional freight economics that make large duct packages practical for Gulf Coast and Southeast buyers.
JMC produces the full range of commercial HVAC duct at production scale:
- SMACNA-compliant galvanized steel duct: rectangular, round, and oval
- All pressure classes per project specification
- High-volume capacity for large commercial mechanical packages
- Fittings, transitions, and accessories fabricated to drawing
- Production scheduling aligned to the mechanical install sequence
Commercial duct has to meet SMACNA construction standards for the specified pressure class, and JMC fabricates to them. Gauge, reinforcement, sealing, and joint construction all follow the SMACNA requirement for the class, so the duct that ships is the duct the mechanical engineer specified.
JMC's in-house engineering team plugs directly into the commercial coordination process:
- Work from GC or mechanical sub Revit models
- Clash detection and drawing review against the coordinated model
- Shop drawings generated from customer packages or drafted in-house
- RFI support for GC and mechanical engineer coordination
Duct is bulky, and freight is a real line item on a large commercial package. Sourcing regionally from JMC's Pascagoula shop rather than from an out-of-state supplier saves meaningful freight cost on Gulf Coast and Southeast projects, which is a direct economic advantage for commercial duct buyers.
JMC supplies at the scale and documentation level Tier 1 commercial contractors require. The combination of production capacity, SMACNA compliance, BIM coordination, and regional delivery is built for large-scale commercial mechanical work, not one-off jobs.
- HVAC Duct FabricationSMACNA-compliant HVAC duct fabrication from Pascagoula, MS. Rectangular, round, and oval duct in galvanized and stainless steel. 50,000 sq ft facility serving the Gulf Coast.
- Galvanized Steel FabricationSMACNA-compliant galvanized steel duct, sheet metal, and custom components from Pascagoula, MS. Corrosion-resistant fabrication for commercial HVAC and industrial applications.
- Custom Metal FabricationCustom metalwork from concept through delivery — pump skids, penetrations, flanges, subbases, copper assemblies. AWS and NAVSEA certified. 50,000 sq ft shop in Pascagoula, MS.
Is JMC's commercial duct SMACNA-compliant?
Yes. JMC fabricates commercial HVAC duct to SMACNA construction standards for the specified pressure class, with gauge, reinforcement, sealing, and joint construction following the SMACNA requirement for that class.
What types of commercial duct does JMC fabricate?
JMC fabricates rectangular, round, and oval galvanized steel duct in all pressure classes, along with fittings, transitions, and accessories, at production scale for large commercial mechanical packages.
Can JMC work from our Revit BIM model?
Yes. JMC's in-house engineering team works from GC or mechanical sub Revit models, performs clash detection and drawing review against the coordinated model, and generates shop drawings from customer packages or in-house.
How does sourcing duct from JMC save on freight?
Duct is bulky and freight is a significant cost on large packages. Sourcing regionally from JMC's Pascagoula, MS shop rather than from an out-of-state supplier reduces freight cost on Gulf Coast and Southeast commercial projects.
Can JMC handle large-scale commercial duct volume?
Yes. JMC operates a 50,000 sq ft shop with high-volume production capacity and supplies at the scale and documentation level that Tier 1 commercial contractors require.