Technical Resource · Structural Steel
Structural Steel Weight Chart
Structural-steel weight charts provide theoretical or tabulated mass for estimating and logistics; purchase quantity and shipping mass must still be reconciled with the exact section standard, ordered lengths, tolerances, fabrication additions and supplier documents.
A weight chart gives theoretical or tabulated mass for estimating and logistics, not a guaranteed shipping mass. The buyer reconciles purchase quantity and shipping mass against the exact section standard, ordered lengths, tolerances, any fabrication additions and supplier documents. All commercial terms — price, stock, origin, delivery and documentary requirements — remainPrice on request until confirmed by the commercial department.
What to send now
- Section system and exact designation
- Governing material and dimensional standard
- Ordered length and quantity (units)
- Fabrication allowance, if project-specified
- Required inspection documents
- Destination and Incoterm inputs
Structural Steel Mass Estimator
Estimate theoretical mass transparently — and label the gap
Enter the tabulated mass per metre from the governing standard or project document, the ordered length and the piece count. The estimator shows the formula and rounding, keeps any fabrication allowance separate, and marks the final shipping mass as quotation / document dependent.
Method & assumptions
Line-item mass = tabulated mass per metre × ordered length; line total = line-item mass × pieces. Any fabrication allowance is applied as a percentage on top and kept visually separate. All values are rounded to two decimals for display. The result is a theoretical estimate — the final shipping mass is quotation / document dependent and must be reconciled with the exact section standard, ordered lengths, tolerances and supplier documents. No load rating, capacity or equivalence is implied.
Result
Add designation, mass, length and pieces to estimate
- –Provide the designation, tabulated mass per metre, ordered length and piece count.
Line-item mass
— kg
Estimate total
— kg
Buyer note: the tabulated mass per metre is user-entered and must be confirmed against the governing standard or project document. The shipping mass remains quotation / document dependent; unknown or verify-first fields are preserved rather than assumed.
Method
From weight chart to quotation — what the chart does and cannot do
A structural-steel weight chart is a tabulated reference of theoretical mass per unit length by section designation. It is an estimating and logistics aid, not a commitment and not an engineering rating.
Definition
Theoretical or tabulated mass per metre (kg/m) per section designation, drawn from a governing dimension standard or an authoritative section dataset.
Estimating
The chart supports early mass, freight and handling estimates before drawings or cut-lists are finalised.
Not a commitment
Purchase quantity and shipping mass must be reconciled with the exact section standard, ordered lengths, tolerances and supplier documents.
Not an approval
A weight chart is no substitute for structural design, load-rating or cross-standard equivalence approval.
Worked examples
Two worked examples of theoretical mass estimating
Both examples use the same transparent method — tabulated mass per metre × length, × pieces — with any allowance kept separate. Figures are illustrative inputs, not prices or commitments.
IPE 200
- Tabulated mass
- 22.4 kg/m
- Length
- 6 m
- Pieces
- 40 pcs
- Line total
- 5,376 kg
Constant section over straight lengths; allowance only if fabrication adds plate or cutting waste.
U-section 150×75×6
- Tabulated mass
- 14.0 kg/m
- Length
- 6 m
- Pieces
- 24 pcs
- Line total
- 2,016 kg
Mass per metre confirmed against the governing standard before quoting freight.
L-section 100×100×10
- Tabulated mass
- 15.1 kg/m
- Length
- 6 m
- Pieces
- 16 pcs
- Line total
- 1,450 kg
Keep an explicit allowance line when fabrication adds gussets or bolted connections.
Illustrative figures for method only. Actual values must be confirmed against the governing standard and supplier documents; the shipping mass is quotation / document dependent.
Specification context
Which standard or dataset governs the row you are reading?
A weight chart row is only meaningful with its source. The designation, grade and mass per metre must all trace to the same cited document before a quotation is requested.
- Mass per metre is a tabulated value, not a measured one — confirm the governing standard or authoritative section dataset.
- EN 10025 covers flat-rolled structural steels and their grades; it is one common basis for structural sections and plates.
- Carry the exact designation and grade into the RFQ so the supplier can reconcile with the project document.
Quality discipline
Let documents anchor the mass, not memory
The most common estimating error is using an out-of-date or cross-standard mass value. Keep each designation tied to a traceable source.
- Record the exact designation, grade and the standard or dataset version beside every mass value.
- Separate theoretical mass from shipping mass — tolerances, lengths and added fabrication change the shipped figure.
- Request a document-backed confirmation with the RFQ rather than relying on a chart alone.
Section selection
Bring the family and route to the supplier
Weight charts group sections by family. Match the designation to the family page, then send the same designation to the RFQ so nothing is re-typed or lost.
Adjacent reference
Depths, grades and families belong to the same thread
A weight chart pairs with the dimensional side of the same sections. Cross-reference before you quote so the mass and the geometry agree.
Size chart
The companion dimensional reference for the same structural sections. Use them together.
Structural steel size chartEN 10025
Flat-rolled structural steel grades commonly governing sections and plate.
EN 10025 structural steel supplierH beam
H / I sections; confirm the exact designation before quoting mass or price.
H beam steel supplierGCC supply
Weight references travel across GCC project sites
The same designation, grade and standard are requested by fabricators and contractors across the Gulf. Route your requirement to the relevant market page for sourcing support.
Expert insight
AISC Shapes Database as a dimensional reference
A standardised, authoritative dataset of section dimensions and properties supports consistent designation and mass recording across estimating and procurement.
Version 16.0; current resource verified 10 September 2026.
Method: Use only the dimensions, masses and designation / property fields published in the cited authoritative section dataset or governing standard. Record the exact designation beside each value and treat the mass as theoretical until a supplier document confirms it.
Scope: Dimensional and designation verification relevant to a Structural Steel Weight Chart — procurement support only, no structural design or load-rating.
Limitations: Datasets cover the sections they publish; not every regional or project-specific section will appear. Dataset values are for reference, not a substitute for the governing project standard or a documented test.
Buyer implication: Carry the exact sourced section designation into the RFQ and require engineering approval for any proposed cross-series or cross-standard substitution.
Why it matters
One reference thread from chart to contract
A consistent, cited weight reference reduces estimating rework and keeps the designation identical from chart, to RFQ, to delivery documents.
Consistency
The same designation and mass travel through estimate, quote and delivery documents.
Traceability
Every value is tied to a cited standard or dataset, so nothing rests on memory.
Faster RFQ
A pre-built shortlist transfers straight to the RFQ instead of being re-typed.
Documentated
Tolerances, lengths and fabrication additions stay explicit rather than hidden in a figure.
No false precision
Theoretical mass is labelled as such until the supplier document confirms the shipped figure.
Cross-standard care
Substitution across series or standards always requires engineering approval.
How it flows
From an estimating starting point to document-backed confirmation
A weight chart is the first step of a clear procurement sequence. Follow the same path every time a mass is needed.
- 01
Identify
Confirm the section family, exact designation, grade and governing standard.
- 02
Estimate
Apply the tabulated mass per metre with length, pieces and any separate allowance.
- 03
Quote
Request a Quote with the exact designation so the supplier reconciles against the project document.
- 04
Confirm
Use the supplier document for the shipping mass; require approval for any substitution.
FAQ
Common questions on structural-steel weight charts
Straight answers about what a weight chart verifies, which source governs, and how to move a row into a quotation.
What does a weight chart verify — and what does it not prove?
Which source or version governs a given row?
Can sections of similar nominal depth be substituted between series?
How is the theoretical mass calculated or sourced?
How do I move a weight-chart row into an RFQ?
Next step
Need a verified structural steel specification?
Send grade, size, quantity and destination for technical RFQ support. The exact designation, level of detail and destination are confirmed in the request.
Price on request — the commercial team confirms grade, size, quantity and destination before any quotation.
Reference
Anchor the chart to a governing dimension standard
A usable weight chart sits on a cited dimension standard so mass, designation and geometry agree. Confirm the project's governing document before buying.
EN 10025 covers flat-rolled structural steels and their grades — a common basis for sections and plate.
The exact standard version governs the section dimensions, tolerances and the tabulated mass you read.
Keep the designation identical from chart to RFQ to delivery documents.
Supplier routes
Section families and the structural steel range
Carry the designation into the right family page, then into the RFQ for document-backed confirmation.
Commercial terms
What rests on the quotation
Theoretical mass supports estimation; the quote, the supplier document and the agreed Incoterms govern the commercial outcome.
Price on request
Confirmed grade, size, quantity and destination before any quotation.
Document-dependent
Shipping mass and tolerances follow the supplier document, not the chart.
Designation exact
The same exact designation carries from chart to RFQ to delivery.
Approval first
Any cross-series or cross-standard substitution needs engineering approval.
Final reference
This chart, and the RFQ that follows it
Use this resource to compare dimensions, grades, tolerances and calculation inputs. The data supports estimation; the quotation and supplier document confirm the commercial detail.