Steel BOM Template for Fabricators — Prevent Material Shortages
A standardized steel BOM template tracks six vital data points: Item Number, Section Designation, Cut Length, Quantity, Unit Weight (kg/m), and Total Weight.
- Eliminates ordering shortfalls by standardizing procurement formats
- Calculates total structural tonnage automatically using IS chart values
- Directly feeds into cut optimization software to reduce offcut waste
The difference between a profitable fabrication workshop and a struggling one often comes down to documentation. Before building your BOM, run a cutting list optimisation to confirm your section sizes and quantities are finalized. When fabricators rely on rough paper sketches, they inevitably miscalculate their steel requirements, leading to expensive mid-project material orders and heavy offcut waste. Creating a bullet-proof steel BOM template in Excel forces you to systematically calculate every cut length and its exact theoretical weight.
Example Steel Bill of Materials (BOM) Layout
If you are building your own fabrication bill of materials in Excel, structure it using the columns below. All mild steel sections in India are supplied to IS 2062:2011 (Hot Rolled Medium and High Tensile Structural Steel), and your BOM should always record the grade (E250, E350, etc.) against each line item. This format ensures that nothing is missed when the list is handed over to the purchasing department.
| Item No. | Section Designation | Cut Length (m) | Quantity | Unit Wt. (kg/m) | Total Wt. (kg) |
|---|---|---|---|---|---|
| 1 | ISMB 200 (Main Column) | 4.500 | 4 | 25.40 | 457.20 |
| 2 | ISMB 150 (Roof Beam) | 6.000 | 4 | 14.90 | 357.60 |
| 3 | ISA 50x50x5 (Truss Web) | 1.200 | 24 | 3.80 | 109.44 |
| 4 | MS Pipe 50 NB Med. | 3.000 | 12 | 5.03 | 181.08 |
| 5 | 10mm MS Base Plate (m²) | 0.3 x 0.3 | 4 | 78.50 | 28.26 |
Note: The Total Weight column is derived automatically: (Cut Length × Quantity) × Unit Wt. For plates, the calculation is (Area in m² × Quantity) × Unit Wt per m².
Worked Example: Transitioning to Digital BOMs
A workshop manager in Pune was struggling with 15% material waste because his fitters were cutting steel directly from raw structural drawings. He decided to mandate a strict digital BOM process.
Before any fabrication began, the draughtsman extracted all 120 unique parts into the Excel template. They verified the unit weights (like 25.40 kg/m for ISMB 200) against standard IS codes.
Once the BOM was complete, the manager exported the Section Designation, Cut Length, and Quantity columns directly into a Steel Cut Optimizer. The software generated a highly efficient cutting plan, grouping parts to fit perfectly into standard 6-metre lengths.
By simply using a structured BOM alongside optimization tools, the workshop slashed their offcut scrap from 15% down to 4%, saving thousands of rupees per project.
Frequently Asked Questions
What should a steel BOM include?
A professional steel BOM must include the Part/Item Name, Material Grade (e.g., MS IS 2062), Section Designation (e.g., ISA 50x50x5), Cut Length in millimeters or meters, Required Quantity, Unit Weight (kg/m), and the calculated Total Weight (kg).
BOM vs MTO — what is the difference?
A Material Takeoff (MTO) is a broad estimate of all raw materials required for a project, usually done by engineers to calculate total tonnage for ordering. A Bill of Materials (BOM) is a highly detailed, part-by-part manufacturing list used by the workshop floor to cut and assemble the specific components.
Fabrication BOM kaise banaye?
Fabrication BOM banane ke liye Excel mein 6 columns banayein: Item No, Section (jaise 50x50 angle), Cut Length, Quantity, 1-meter ka standard weight, aur Total Weight. Har part ki length aur quantity likhein, phir usko 1-meter ke weight se multiply karke total weight nikalein. Is list se aap exactly jaan payenge ki kitna material kharidna hai.
Export your BOM data into our Cut Optimizer to instantly generate a waste-free cutting plan.
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