Bill of Materials Steel Fabrication — Precise Material Take-Off Services
We deliver error-free Bills of Material (BOM) and Material Take-Offs (MTO) extracted directly from coordinated 3D Tekla models for precise material procurement.
What is a bill of materials in steel fabrication?
A bill of materials in steel fabrication is a comprehensive table listing every structural member, plate, bolt, and connection plate needed for a project. Extracted from a 3D Tekla model, it specifies piece marks, material grades, profiles, cut lengths, and weights, ensuring error-free material procurement.
Most detailing shops deliver drawings but leave material takeoff checks to the fabricator, leading to discrepancies. Total Engineering Consultants solves this by extracting the BOM database directly from the 3D model. We verify sizes, grades, and connection hardware, and provide structured Excel sheets ready for ERP import.
MATERIAL ESTIMATION DELIVERABLES
Member Schedules
Detailed lists of structural profiles, cut lengths, material grades, and weight parameters for every column, beam, and brace.
Connection Hardware Lists
Precise quantity counts for assembly bolts, structural nuts, washers, anchor rods, and connection shear plates.
Surface Area & Coating Reports
Calculating exact surface areas per member for structural painting, fireproofing, or hot-dip galvanizing procurement.
Excel Tonnage Summaries
Categorized steel weight summaries grouped by profile size and grade, formatted for direct integration into ERP systems.
What is the difference between BOM, MTO, and BOQ?
BOM lists specific assembly pieces and cut lengths for fabrication shops. MTO summarizes raw materials and hardware for procurement divisions. BOQ aggregates total volumes and installation tasks with unit costs for project bidding.
| Material Term | Primary Focus | Deliverable Output |
|---|---|---|
| Bill of Materials (BOM) | Component fabrication assemblies | List of exact pieces, cut lengths, plates, and hardware for shop assembly. |
| Material Take-Off (MTO) | Raw material procurement | Categorized summary of total lengths, plate weights, and hardware volumes. |
| Bill of Quantities (BOQ) | Cost estimation & bidding | Quantified summary of work items and raw materials with unit rates. |
OUR BOM & TAKE-OFF WORKFLOW
We extract material databases directly from our 3D model, ensuring 100% dimensional accuracy.
Model Coordination
Complete the LOD 400 3D Tekla model, resolving all structural coordinate clashes.
Attribute Verification
Validate material grades, plate thickness properties, and bolts within the model.
Automated Extraction
Export BOM schedules and weight take-offs directly from the model database (no manual counts).
Excel Format Mapping
Format reports into structured Excel files matching client procurement templates.
QA Review & Delivery
Perform final audits to cross-verify model volumes against design general notes before release.
REGIONAL TAKE-OFF EXPERTISE
We adapt material take-offs and schedules to comply with regional coating specs and geological foundations.
We calculate material lists for heavy industrial skid assemblies and warehouse framing designed for coastal wind loads.
Total Engineering Consultants delivers precise steel tonnage take-offs for high-rise commercial structures and municipal parking platforms.
We coordinate material lists for high-density urban steel frames, detailing compact joints and structural bolt counts.
Our team details material schedules for CA seismic frame connection systems, detailing weld wire and anchor rods.
We support southeastern steel contractors with commercial framing take-offs, assisting rapid procurement workflows.
BOM & TAKE-OFF FAQS
What is a bill of materials in steel fabrication?
A bill of materials in steel fabrication is a comprehensive table listing every structural member, plate, bolt, and connection plate needed for a project. Extracted from a 3D Tekla model, it specifies piece marks, material grades, profiles, cut lengths, and weights, ensuring error-free material procurement.
What is the difference between a BOM and an MTO?
An MTO (Material Take-Off) lists the raw materials needed for project bidding or procurement (e.g., total tons of W-shapes). A BOM (Bill of Materials) is highly detailed, showing how those raw materials are cut and assembled into specific components (e.g., columns and beams with attached plates).
Why is model-based BOM extraction superior to manual takeoff?
Manual take-offs from 2D PDFs are prone to human counting errors, especially with connection bolts and small plates. Model-based extraction pulls data directly from the verified 3D Tekla model, guaranteeing 100% mathematical accuracy and matching shop files.
Can you deliver reports compatible with fabrication ERP systems?
Yes. We export reports in Excel, CSV, and XML formats, which can be directly imported into major fabrication management systems such as FabSuite, Tekla PowerFab, or custom ERP databases.
Do you calculate surface areas for paint and galvanizing?
Yes. Our reports include exact surface areas (in square feet or meters) for every member and assembly, allowing you to procure the precise amount of paint, fireproofing, or hot-dip galvanizing services.
How fast can you deliver a BOM after drawings are approved?
Because the BOM is linked directly to our 3D model database, we can export and deliver complete procurement reports within 24 to 48 hours of final model approval.
GET AN ERROR-FREE STEEL TAKE-OFF
Outsource your BOM and material take-offs to Total Engineering Consultants. Send your structural designs or layouts and receive a comprehensive pricing proposal within 24 hours.