Stronger Designs.
Safer Builds.
Better Results.

Practical engineering and detailing solutions for fabricators, manufacturers, contractors, and industrial companies.

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Our Promise

Backed By A Licensed Professional Engineer

From structural and mechanical engineering to fabrication detailing and P.E.-certified designs, Weldment Companies delivers solutions built for real-world conditions. Every project is completed by a licensed Professional Engineer (P.E.), with a commitment to quality, safety, and precision.

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✓Code-Compliant Designs
✓Efficient & Cost-Effective
✓Built for Real-World Conditions
✓Focused on Your Success

Our Services

Engineering & Detailing Services

Structural Engineering

Load-path analysis and P.E.-stamped design for platforms, frames, and building steel, detailed to AISC 360.

Mechanical Engineering

Stress, load, and motion analysis for equipment, machines, and moving assemblies under real service conditions.

Marine Engineering

Structural design for vessels, offshore platforms, and coastal assets built to resist wave load, fatigue, and corrosion.

Industrial Engineering

Plant layout, support steel, and production structures engineered for throughput, access, and operator safety.

Mission-Critical Engineering

Redundant, seismically anchored design for facilities and equipment where downtime isn’t an option.

Heavy-Lift & Material-Handling

Lifting beams, spreader bars, and below-the-hook devices rated to ASME BTH-1, with OSHA-compliant rigging plans.

Pressure Vessel & Tank

ASME Section VIII vessels and API 650 tanks — shell and head sizing, nozzle reinforcement, and anchorage calculations.

Barge Engineering

Deck, spud, and hopper barge structures — framing, scantlings, and padeyes engineered for working service.

Pressure Vessel & Tanks Engineering

Design and code calculations for pressure vessels and storage tanks — oil, process, water, and flammable-liquid — to API 650, API 620, AWWA D100, and UL-142, with overpressure protection per ASME BPVC Section XIII.

P.E. Review & Certification

Independent code review, correction, and a licensed P.E. seal — the stamp building departments require before a permit is issued.

3D Modeling

Accurate solid models and assemblies from concept, prints, or field measurements — clash and fit resolved before cutting.

2D Drafting

Fabrication-ready shop and assembly drawings with dimensions, tolerances, weld callouts, part marks, and clean revision control.

Bill Of Materials & Material Listing

Itemized takeoffs by shape, size, length, quantity, and weight — with cut lists ready to buy, nest, and schedule from.

Weldment & Fabrication Detailing

Shop-ready weldment drawings with AWS A2.4 weld symbols, joint prep, and fit-up detailed to AWS D1.1.

CAD Support & File Conversions

Legacy and paper drawing cleanup, layer standardization, and conversion across DWG, DXF, STEP, and IGES.

Engineering Consultation

Direct access to a licensed P.E. for feasibility, code path, and constructability — before shop time and material are committed.

Structural & Industrial

Code-compliant structural design for mezzanines, equipment platforms, pipe racks, and heavy plant support steel.

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Material Handling & Heavy Lifting

Certified lifting design for spreader bars, lifting beams, monorails, and below-the-hook devices rated to ASME BTH-1.

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Pressure Vessels & Tanks

Code-stamped vessel and tank engineering for pressure containment, bulk storage, and demanding process service.

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Barge, Piers & Marine Equipment

Specialized structural design for deck and spud barges, hull framing, and scantlings — plus pier and dock framing, pile caps, bracing, and mooring structures built for the coast.

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Data Centers & Mission Critical

Mission-critical support engineering for generator platforms, rooftop dunnage, and seismically anchored equipment.

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Industries We Serve

Engineering Solutions For Every Industry

Why Fabricators Switch

Typical Engineering Support

✕Overworked internal teams cause delays
✕Drawings arrive late or missing critical details
✕Offshore designers don’t understand fabrication
✕Constant redlines and rework
✕High cost and long ramp-up for new hires
✕Communication is slow and disjointed

Weldment Companies Support

✓Built-for-the-shop designs from industry pros
✓Precision output that gets it right the first time
✓Fabrication-ready drawings, fully detailed
✓Direct access to responsive, experienced engineers
✓On-demand bandwidth with senior US-based engineers
✓P.E.-certified where your project requires it

Software Access & Expertise

Industry-Standard Software, Run By Licensed Engineers

The same engineering platforms relied on across demanding commercial, industrial, and government programs — operated by our licensed team.

Codeware

ASME Section VIII pressure vessel and heat-exchanger design in COMPRESS — automated code calculations, MAWP, and stamp-ready reports built to survive third-party and jurisdictional inspection.

RISA

Finite-element structural analysis and design of steel, concrete, and complex framing — platforms, supports, and heavy structures verified to AISC, ACI, and ASCE 7.

SolidWorks

Parametric 3D modeling, weldment design, and fabrication drawings — fit, clash, and tolerance resolved digitally before a single part reaches the shop floor.

AutoCAD 2D

Industry-standard 2D drafting and documentation — general arrangement, layout, and fabrication drawings with precise dimensioning, weld callouts, and disciplined revision control.

Nastran

High-fidelity finite-element analysis for nonlinear, thermal, and dynamic problems — stress, buckling, vibration, and fatigue validated where standard code checks fall short.

Built to Code

Designed To Leading Codes & Standards

All designs are created in compliance with the industry codes and standards that matter to your project.

AISC

ASCE

AASHTO

ACI

ABS

IBC

CMAA

ASME

API

AWS

MHI

Partnership Success Stories

Trusted By Fabrication Teams

★★★★★

“It is very exciting to be growing in tandem with such a great company and leader! Weldment Companies is a true partner for us at Capitol Engineering Co. — laser scan interpretation, weld engineering, and more.”

John CarneyCapitol Engineering Co.

★★★★★

“I highly recommend Weldment Companies. I’ve consistently been impressed by their deep technical understanding of steel fabrication, welding, and design.”

Daniel ReedFabrication Partner

★★★★★

“High quality and detailed work. Their communication is always succinct and professional — I’d be happy to work with them in other venues!”

Nick PaulickEngineering Client

States where Weldment Companies is a licensed P.E.

Credentials

Licensed Professional Engineer In The Following States

P.E.-certified support across 29 states — select yours to see local engineering services.

Get Started

Request a Quote

Every project has a different scope, so every quote is tailored to yours. Tell us what you’re building and we’ll put together the right engineering and detailing plan.

Share Your Project

Send us your drawings, scope, and goals — or just start a conversation.

We Review The Scope

Our engineers assess the requirements, standards, and deliverables.

Receive Your Quote & Plan

A tailored proposal and a clear path forward for your project.

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Download Our Free Guide

Avoid Common Design Mistakes

The 5 most common mistakes in heavy fabrication design — and how to avoid them. Each one raises the risk of design failure, or of running past due and over budget.

Vendor Network

Join The Weldment Vendor Network

Partner with us and get matched to heavy-fabrication projects that fit your shop.

Become a Vendor

Let’s build together. Get in touch today for a free quote or to learn how we can support your next project.

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Contact

[email protected] (912) 254-0001

8734 Millerville Dr.
North Charleston, SC 29420

Stronger Designs.
Safer Builds.
Better Results.

Practical engineering and detailing solutions for fabricators, manufacturers, contractors, and industrial companies.

Request a Quote

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Our Promise