CUSTOM METAL FABRICATION IN PASCAGOULA, MS
JMC Fabrication handles custom metalwork from concept through delivery — pump skids, penetrations, flanges, subbases, copper piping assemblies, and specialty weldments. Our 50,000 sq ft shop in Pascagoula, MS combines in-house engineering with AWS and NAVSEA certified fabrication so complex, one-off projects don't require a coordination chain between designer and builder.
JMC's custom metal fabrication shop handles the full range of industrial and commercial metalwork:
- Pump skids and equipment packages
- Penetrations and sleeves (structural and pipe)
- Flanges and custom fittings
- Structural subbases and mounting frames
- Copper piping assemblies
- Custom welded assemblies — unique configurations, specialty parts
- Specialty sheet metal enclosures and covers
Custom fabrication starts with engineering. JMC can receive customer-supplied drawings and go directly to production, or develop designs from scratch using CAD/CAM drafting and Revit BIM modeling. Material selection, fabricability review, and RFI support are part of the process — design and production under one roof eliminates the coordination chain that adds time and cost to complex work.
- Carbon steel — structural frames, piping, enclosures
- Stainless steel — corrosion-critical, marine, sanitary applications
- Galvanized steel — corrosion-resistant commercial applications
- Copper — piping assemblies and specialty systems
- Material certifications (MTRs) available on all materials
- AWS certified welding on all custom assemblies
- Dimensional and fit-up verification before delivery
- Inspection and documentation packages per project requirements
- Commercial construction — custom structural and specialty metal
- Marine and shipbuilding — custom mechanical components and assemblies
- Oil and gas EPC — equipment packages, skids, custom piping
- Industrial manufacturing — process equipment, specialty assemblies
- October 6, 2026What Is an Equipment Skid Base, and How Is It Built?A skid base is the structural steel frame that equipment is mounted, piped, and shipped on. Here's how skid bases are designed and fabricated, from the frame and drip lip to lifting points, flatness, and coating.
- September 24, 2026Which Stainless Steel Grades Can Be Fabricated and Welded? 304, 316, 420, and 440 ComparedNot every stainless steel welds the same. How 304 and 316 compare with ferritic, duplex, and martensitic grades like 420 and 440, and what to expect when a drawing calls for a hard-to-weld grade.
- September 2, 2026What Tolerances Should You Expect from a Structural Steel Fabricator?Real AISC-standard tolerances for structural steel fabrication: mill tolerances, camber and sweep, column length, and connection hole alignment, and why erection problems usually trace back to tolerance stacking.
- August 19, 2026Specialty Weldments: What They Are and When You Need Custom FabricationWhat separates a specialty weldment from a standard fabricated part, when a project actually needs custom weldment fabrication, and what to give a shop to get an accurate quote.
- August 19, 2026Wall and Deck Penetration Fabrication for Marine and Industrial ProjectsHow structural and pipe penetrations are fabricated for marine bulkheads, decks, and industrial walls, what information a fabricator needs, and why fit matters more than it looks.
- August 19, 2026Pump Skid Design and Fabrication: What's Included and How It's BuiltWhat goes into a fabricated pump skid, how the build process works from drawings to delivery, and what to include in an RFQ to get an accurate quote.
- July 2, 2026Industrial Exhaust and Dust Collection Duct Fabrication: How It Differs from HVAC DuctWhy industrial exhaust, dust collection, and process ventilation duct is built differently from commercial HVAC duct, and how JMC Fabrication approaches industrial ductwork.
- FabricationData Center Duct FabricationHow data center duct packages differ from typical commercial work on volume, repetition, and schedule, and how JMC fabricates and stages them from Pascagoula, MS.
- FabricationHotel and Multifamily Duct FabricationHow repetition, tight ceiling plenums, and occupancy phasing shape hotel and multifamily duct packages, and how JMC fabricates and stages them.
- FabricationWarehouse and Distribution Duct FabricationHow long runs, high bay mounting, and exposed installation shape warehouse and distribution center duct packages, and how JMC fabricates and ships them.
- EngineeringCAD and Modeling Software JMC Fabrication UsesJMC's engineering team works in AutoCAD, Revit BIM, and pipe isometric tools to detail, coordinate, and hand off fabrication work to the shop floor.
- EngineeringShop Drawings and Engineering Documentation from JMC FabricationJMC's in-house engineering team produces full shop drawing packages: dimensioned prints, weld maps, BOMs, MTR references, and revision-tracked closeout documentation for fabrication projects.
- EngineeringRevit and BIM Coordination with JMC FabricationJMC's engineering team coordinates directly inside customer Revit models, runs clash detection across architectural, structural, and MEP backgrounds, and handles RFIs through the GC's BIM workflow.
Working on a project that combines services? Explore related capabilities at JMC:
- Pipe Spool FabricationShop-fabricated pipe spools for oil & gas, marine, and industrial applications. AWS and NAVSEA certified welding from Pascagoula, MS. Carbon and stainless steel.
- Carbon Steel FabricationCarbon steel fabrication for pipe spools, HVAC duct, structural components, and custom weldments. ASTM A36, A53, A106. AWS certified welding from Pascagoula, MS.
- Stainless Steel FabricationNAVSEA and AWS certified stainless steel fabrication for marine, oil & gas, and specialty industrial applications. 304 and 316 stainless. Pascagoula, MS.
- Custom Tank FabricationShop-built custom tanks in carbon steel, stainless, and aluminum: day tanks, sumps, hoppers, process and rinse tanks, skid-mounted fuel tanks, and marine fuel and water tanks. Pascagoula, MS.
- All Fabrication ServicesOverview of JMC's full fabrication capabilities, including HVAC duct, pipe spools, and custom metalwork.
What types of custom metal fabrication does JMC offer?
JMC fabricates custom pump skids, penetrations, flanges, structural subbases, copper piping assemblies, and specialty weldments. We work from customer drawings or generate designs in-house, handling the full scope from engineering through finished fabrication.
Can JMC fabricate from customer-supplied drawings?
Yes. JMC can work directly from customer drawings, isometrics, or 3D models. Our engineering team reviews for fabricability, flags any issues, and goes directly to production — no external coordination required.
What materials does JMC work with for custom fabrication?
JMC works in carbon steel, stainless steel, galvanized steel, and copper. Material selection depends on application environment, pressure class, code requirements, and project budget. Material certifications (MTRs) are available.
Does JMC provide documentation and certifications for custom fabricated parts?
Yes. JMC provides inspection records, material test reports (MTRs), weld logs, and project documentation packages for custom fabrication projects that require traceability and certification.