Four Pillars Manufacturing is a North Texas fabrication shop for integrators and equipment packagers. We build the skids, e-house shells, and custom metal you install your equipment into, to your layout and on your schedule, so your shop can stay on integration.
Bare steel, built to your drawings and ready for your equipment. Every unit leaves with documented welds and verified dimensions.
Base frames and skids sized to your equipment, with mounting holes, lift points, and drip pans where your layout calls for them.
Skid details → FPM · 02Enclosure shells built to your equipment layout, ready for your crew to install switchgear, UPS, and controls.
E-house details → FPM · 03Generator mufflers and exhaust, structural steel, platforms, and build-to-print parts.
Fab capabilities →Send us your equipment list and layout. We size the frame for the load, drill mounting holes to your equipment footprints, place supports and drip pans where they need to be, and design lift points for how the skid moves through your shop and out to site.
We build the enclosure: base, frame, walls, roof, doors, and cutouts, all to your equipment layout. It arrives at your shop ready for your crew to set gear, pull wire, and test, so your people spend their hours on integration instead of steel.
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The work around the equipment, from generator mufflers to platforms and one-off parts. Carbon steel, stainless, and aluminum, built to your drawings.
Exhaust mufflers for standby and prime-power generators, sized to the engine's exhaust flow and backpressure limit, plus the exhaust run that connects them.
Frames, beams, columns, and supports built to the structural drawings.
Access stairs, caged ladders, catwalks, and equipment platforms with handrail.
Pipe racks, trapeze hangers, cable tray supports, and stanchions.
Equipment bollards, guardrail, and protection for yard-set gear.
Brackets, plates, and weldments from your drawings, one-off or in quantity.
The muffler you need depends on the engine, the distance to the property line, and the local noise ordinance. Send the genset model and noise target, and we'll recommend a grade.
| Grade | Attenuation | Typical use |
|---|---|---|
| Industrial | 12–18 dBA | Remote sites, industrial yards |
| Residential | 18–25 dBA | Light commercial, suburban edges |
| Critical | 25–35 dBA | Mission-critical, urban sites |
| Hospital | 35–42 dBA | Healthcare, near residential |
| Super critical | 40–50 dBA | Strict ordinances, rooftop |
Ranges are industry-typical. Final performance depends on engine data and installation.
One point of contact from quote through shipping, with shop drawings your engineer can approve before we cut steel.
We review your drawings, specs, and equipment data, and flag gaps before quoting.
Shop drawings and material lists go to your engineer for approval.
Cut, fit, and weld to approved drawings, with progress photos at each milestone.
Dimensional checks, weld inspection, and coating verification before release.
Delivered to your shop or yard, with lift points and rigging info, on your production schedule.
Tell us what you're building and when you need the steel in your shop. We reply with questions or a budget number, usually within two business days.