ISMB & ISMC Weight Chart 2026 – Kg/m as per IS 808
Last Updated: September 26, 2026
The ISMB & ISMC Weight Chart 2026 is an essential reference for engineers, contractors, fabricators, architects, steel buyers, procurement teams, construction companies, and structural professionals. ISMB beams and ISMC channels are widely used in industrial buildings, warehouses, factory structures, platforms, machinery supports, steel frames, infrastructure projects, and general fabrication.
This ISMB & ISMC Weight Chart 2026 – Kg/m as per IS 808 provides commonly used section sizes, dimensions, unit weights, approximate 6-metre weights, calculation formulas, price references, applications, and purchasing information.
Knowing the correct kg/m value of an ISMB beam or ISMC channel helps calculate the total steel requirement for a project. It can also be used to estimate transportation loads, inventory quantities, approximate material costs, and the number of sections required.
For accurate procurement, the exact section designation, dimensions, unit mass, steel grade, applicable standard, manufacturer, length, and project specification should always be verified before ordering.
What Is an ISMB Beam?
ISMB stands for Indian Standard Medium Beam. It is a hot-rolled structural steel section with an I-shaped cross-section. The section consists of a vertical web and horizontal flanges that provide structural strength and efficient load distribution.
ISMB beams are commonly used where structural members are required to withstand bending, shear, compression, and other design loads.
Typical ISMB applications include:
- Industrial buildings
- Factory structures
- Warehouses
- Steel frames
- Platforms
- Bridges
- Columns
- Roof structures
- Machinery supports
- Infrastructure projects
- Commercial buildings
- Heavy fabrication
The number in an ISMB designation generally indicates the nominal depth of the beam in millimetres. For example, ISMB 200 has a nominal depth of approximately 200 mm.
However, the designation should not be used alone to determine the actual dimensions or structural capacity. The applicable section table and project specification should be checked.
What Is an ISMC Channel?
ISMC stands for Indian Standard Medium Weight Channel. It is a hot-rolled structural steel channel with a C-shaped profile.
ISMC channels are commonly selected for structural supports, framing, purlins, bracing, machinery bases, platforms, equipment supports, trailers, and fabrication.
Typical ISMC applications include:
- Industrial sheds
- Warehouse structures
- Structural supports
- Purlins
- Bracing
- Platforms
- Machine bases
- Equipment supports
- Trailer structures
- Walkways
- Gantries
- Fabrication
- Power plants
- Infrastructure projects
For example, ISMC 150 refers to a channel with a nominal depth of approximately 150 mm.
The actual weight of the channel depends on its standardised section dimensions and unit mass.
IS 808:2021 for ISMB and ISMC Sections
IS 808:2021 – Hot Rolled Steel Beam, Column, Channel and Angle Sections – Dimensions and Properties is the fourth revision of the Indian Standard covering hot-rolled structural sections.
For a current 2026 article, it is important to refer to the applicable current edition rather than relying exclusively on older online charts.
IS 808 provides dimensional and sectional-property information for hot-rolled structural steel sections. For procurement and structural design, buyers should confirm that the supplied section corresponds to the required designation and project specification.
Important: Different websites may publish different weight values because of differences in section series, dimensional references, or source tables. Always verify the exact section against the applicable standard before placing a purchase order.
ISMB & ISMC Weight Chart 2026 – Kg/m
The following ISMB & ISMC Weight Chart 2026 provides commonly referenced unit weights for ISMB beams and ISMC channels.
ISMC Weight Chart 2026
| ISMC Size | Depth | Flange Width | Weight kg/m |
|---|---|---|---|
| ISMC 75 | 75 mm | 40 mm | 6.8 |
| ISMC 100 | 100 mm | 50 mm | 9.2 |
| ISMC 125 | 125 mm | 65 mm | 12.7 |
| ISMC 150 | 150 mm | 75 mm | 16.4 |
| ISMC 175 | 175 mm | 75 mm | 19.1 |
| ISMC 200 | 200 mm | 75 mm | 22.1 |
| ISMC 225 | 225 mm | 80 mm | 25.9 |
| ISMC 250 | 250 mm | 80 mm | 30.4 |
| ISMC 300 | 300 mm | 90 mm | 38.8 |
| ISMC 350 | 350 mm | 100 mm | 42.1 |
| ISMC 400 | 400 mm | 100 mm | 49.4 |
These values provide a practical reference for quantity calculations. The exact approved unit weight should be verified against the applicable standard and project documentation.
ISMB Weight Chart 2026
| ISMB Size | Beam Depth | Weight kg/m |
|---|---|---|
| ISMB 100 | 100 mm | 8.1 |
| ISMB 125 | 125 mm | 11.1 |
| ISMB 150 | 150 mm | 14.4 |
| ISMB 175 | 175 mm | 17.8 |
| ISMB 200 | 200 mm | 22.2 |
| ISMB 225 | 225 mm | 26.3 |
| ISMB 250 | 250 mm | 31.5 |
| ISMB 300 | 300 mm | 42.1 |
| ISMB 350 | 350 mm | 51.5 |
| ISMB 400 | 400 mm | 61.6 |
| ISMB 450 | 450 mm | 72.4 |
| ISMB 500 | 500 mm | 84.1 |
| ISMB 550 | 550 mm | 96.3 |
| ISMB 600 | 600 mm | 109.2 |
The table can be used for preliminary steel quantity estimation. For final engineering calculations, use the approved section data specified for the project.
ISMC Weight Chart 2026 Per Meter and 6-Meter Weight
The unit weight in kg/m can be converted into the approximate weight of a 6-metre section using:
6-Meter Weight = Weight per Meter × 6
For example, the reference weight of ISMC 200 is 22.1 kg/m.
Therefore:
22.1 × 6 = 132.6 kg
So, one 6-metre ISMC 200 section weighs approximately 132.6 kg based on the reference unit weight.
| ISMC Size | Weight kg/m | Approx. 6 m Weight |
|---|---|---|
| ISMC 75 | 6.8 | 40.8 kg |
| ISMC 100 | 9.2 | 55.2 kg |
| ISMC 125 | 12.7 | 76.2 kg |
| ISMC 150 | 16.4 | 98.4 kg |
| ISMC 175 | 19.1 | 114.6 kg |
| ISMC 200 | 22.1 | 132.6 kg |
| ISMC 225 | 25.9 | 155.4 kg |
| ISMC 250 | 30.4 | 182.4 kg |
| ISMC 300 | 38.8 | 232.8 kg |
| ISMC 350 | 42.1 | 252.6 kg |
| ISMC 400 | 49.4 | 296.4 kg |
ISMB Weight Chart 2026 Per Meter and 6-Meter Weight
The same calculation can be used for ISMB beams.
For example, the reference unit weight of ISMB 300 is 42.1 kg/m.
Therefore:
42.1 × 6 = 252.6 kg
One 6-metre ISMB 300 section has an approximate calculated weight of 252.6 kg.
| ISMB Size | Weight kg/m | Approx. 6 m Weight |
|---|---|---|
| ISMB 100 | 8.1 | 48.6 kg |
| ISMB 125 | 11.1 | 66.6 kg |
| ISMB 150 | 14.4 | 86.4 kg |
| ISMB 175 | 17.8 | 106.8 kg |
| ISMB 200 | 22.2 | 133.2 kg |
| ISMB 225 | 26.3 | 157.8 kg |
| ISMB 250 | 31.5 | 189.0 kg |
| ISMB 300 | 42.1 | 252.6 kg |
| ISMB 350 | 51.5 | 309.0 kg |
| ISMB 400 | 61.6 | 369.6 kg |
| ISMB 450 | 72.4 | 434.4 kg |
| ISMB 500 | 84.1 | 504.6 kg |
| ISMB 550 | 96.3 | 577.8 kg |
| ISMB 600 | 109.2 | 655.2 kg |
ISMB & ISMC Weight Calculation Formula
The most commonly used formula is:
Total Weight = Weight per Meter × Length × Quantity
For example, consider 20 pieces of ISMC 150, each 6 metres long.
ISMC 150 weight = 16.4 kg/m
Length = 6 m
Quantity = 20
Calculation:
16.4 × 6 × 20 = 1,968 kg
Therefore:
Total Weight = 1,968 kg
or:
1.968 MT
This formula is useful for estimating the approximate material requirement before purchasing.
ISMB Weight Calculation Example
Suppose a project requires 10 pieces of ISMB 250, each 12 metres long.
Reference unit weight:
31.5 kg/m
Calculation:
31.5 × 12 × 10 = 3,780 kg
Therefore:
Total Weight = 3,780 kg
or:
3.78 MT
The calculation can then be combined with a current quoted steel rate to estimate the preliminary material value.
ISMC Weight Calculation Using Steel Density
Steel weight can also be estimated from cross-sectional area.
The general relationship is:
Weight = Volume × Density
For theoretical carbon-steel calculations, a density of approximately 7,850 kg/m³ is commonly used.
When cross-sectional area is expressed in square millimetres, the approximate theoretical relationship can be written as:
Weight per metre ≈ Cross-sectional Area × 0.00785
However, rolled ISMB and ISMC sections contain webs, flanges, fillets, radii, and other geometric features. Therefore, using the standardised unit mass of the exact section is generally more appropriate for procurement than estimating the profile using simple rectangular dimensions.
ISMB vs ISMC
ISMB and ISMC are different structural profiles and should not automatically be substituted for each other.
| Feature | ISMB | ISMC |
|---|---|---|
| Full Form | Indian Standard Medium Beam | Indian Standard Medium Weight Channel |
| Shape | I-shaped | C-shaped |
| Main Application | Beams and structural frames | Supports and framing |
| Typical Use | Buildings, bridges, platforms | Supports, purlins, bracing |
| Section Type | Beam | Channel |
| Weight | Depends on size | Depends on size |
| Selection | Based on structural design | Based on structural design |
The appropriate section should be selected according to loading, span, support conditions, section properties, connection requirements, deflection limits, and applicable design standards.
Applications of ISMB Beams
ISMB sections are commonly used in:
Industrial Buildings
ISMB beams can form part of structural frames in factories, production facilities, workshops, and industrial buildings.
Warehouses
They are used in structural framing and load-supporting applications in warehouse construction.
Platforms
ISMB sections can be used for industrial platforms, access structures, and equipment-supporting structures.
Bridges and Infrastructure
Depending on the structural design, beam sections can be incorporated into infrastructure and bridge-related structures.
Machinery Supports
ISMB sections can be used for machine-support structures where the required section properties meet the design requirements.
Applications of ISMC Channels
ISMC channels are frequently used for:
- Structural supports
- Purlins
- Bracing
- Platforms
- Equipment bases
- Machinery supports
- Warehouse structures
- Industrial sheds
- Trailer frames
- Walkways
- Fabrication
- Gantries
- General engineering
The selection of an ISMC section should always be based on the design requirements rather than unit weight alone.
ISMB & ISMC Price Per Kg in India 2026
The price of ISMB and ISMC sections changes according to several market and commercial factors. These include steel grade, section size, manufacturer, quantity, location, freight, taxes, material availability, and whether the material is primary or rerolled.
For September 2026 budgeting, a general MS channel market reference may be around ₹55–₹80/kg, but this should not be treated as a fixed price for every ISMC size.
For example, if the applicable quotation is ₹59/kg and the required ISMC material weighs 1,640 kg:
1,640 × ₹59 = ₹96,760
Therefore, the preliminary material value would be approximately ₹96,760.
The final purchase amount may include GST, freight, loading, unloading, cutting, testing, certification, and other applicable charges.
ISMB Price Reference 2026
ISMB prices also vary by size, grade, manufacturer, quantity, and location.
For example, if a supplier quotes ₹59.50/kg and the estimated requirement is 2,000 kg:
2,000 × ₹59.50 = ₹119,000
This is only a basic material-value calculation and should not be treated as a final quotation.
Always request the latest rate for the exact section and delivery requirement.
Factors Affecting ISMB and ISMC Prices
Steel Grade
Grades such as E250 and E350 may have different availability and prices depending on the specification.
Section Size
Heavier sections contain more steel per meter and therefore have a greater total cost per section.
Manufacturer
Primary mill products and rerolled products can have different prices and documentation.
Quantity
Bulk project orders may receive different commercial rates compared with small quantities.
Location
Steel prices can vary according to regional availability and transportation distance.
Freight
Transportation costs can significantly affect the delivered price.
Taxes
GST and other applicable charges should be considered when comparing supplier quotations.
Market Conditions
Steel prices can change because of raw-material costs, demand, supply, imports, production costs, and inventory levels.
How to Select the Correct ISMB Size
ISMB selection should not be based only on the kg/m value.
Important considerations include:
- Span
- Dead load
- Live load
- Bending moment
- Shear force
- Deflection
- Support conditions
- Buckling
- Connection design
- Steel grade
- Section properties
- Applicable design standard
A qualified structural engineer should confirm the final section for load-bearing applications.
How to Select the Correct ISMC Size
For ISMC channels, consider:
- Applied load
- Span
- Support conditions
- Bending
- Shear
- Buckling
- Deflection
- Connection method
- Section properties
- Steel grade
A heavier channel is not automatically the correct choice. The section must satisfy the relevant engineering requirements.
ISMB and ISMC Lengths
ISMB and ISMC sections can be supplied in different commercial lengths depending on manufacturer, stock availability, and project requirements.
Common requirements include:
- 6 metres
- 12 metres
Other lengths may be available against enquiry.
When requesting a quotation, specify the required length because length affects total weight, transportation, cutting requirements, and overall cost.
Quality Checks Before Buying ISMB and ISMC
Before accepting structural steel sections, buyers should check:
- Section designation
- Overall depth
- Flange width
- Web thickness
- Flange thickness
- Length
- Unit weight
- Steel grade
- Manufacturer
- Heat number
- Material Test Certificate
- Chemical composition
- Mechanical properties
- Surface condition
- Dimensional compliance
For certified projects, documentation requirements should be confirmed before order placement.
ISMB & ISMC Weight Chart 2026 for Project Estimation
The ISMB & ISMC Weight Chart 2026 is especially useful during project estimation.
For example, suppose a project requires 100 metres of ISMC 150.
Unit weight:
16.4 kg/m
Total length:
100 m
Calculation:
16.4 × 100 = 1,640 kg
Therefore:
Required material = 1.64 MT
If the estimated steel rate is ₹59/kg:
1,640 × ₹59 = ₹96,760
This provides a preliminary material-value estimate.
The final commercial value should be calculated using the supplier’s current quotation and applicable GST, freight, cutting, loading, unloading, and other charges.
Related Steel Weight Charts
For additional steel quantity and weight references, readers can explore:
These internal resources provide additional information for steel weight calculations and structural-section estimation.
Buy ISMB and ISMC sections from India.
Sachiya Steel International Private Limited supplies industrial steel products for engineering, fabrication, construction, infrastructure, and industrial requirements.
For an accurate ISMB or ISMC enquiry, provide:
Size + Grade + Quantity + Length + Delivery Location
Providing these details helps the supplier check availability and prepare an appropriate quotation.
For industrial steel products and related requirements, visit Sachiya Steel International.
Frequently Asked Questions
1. What is the ISMB & ISMC Weight Chart 2026?
The ISMB & ISMC Weight Chart 2026 provides reference information about ISMB beam and ISMC channel sizes, dimensions, and unit weights in kg/m for steel quantity estimation.
2. What does ISMB stand for?
ISMB stands for Indian Standard Medium Beam. It is an I-shaped hot-rolled structural steel section.
3. What does ISMC stand for?
ISMC stands for Indian Standard Medium Weight Channel. It is a C-shaped hot-rolled structural steel section.
4. What is the weight of ISMC 100?
The reference table in this article gives 9.2 kg/m for ISMC 100.
5. What is the weight of ISMC 150?
The reference weight of ISMC 150 is 16.4 kg/m.
6. What is the weight of ISMC 200?
The reference weight of ISMC 200 is 22.1 kg/m.
7. What is the weight of ISMB 200?
The reference weight of ISMB 200 is 22.2 kg/m.
8. What is the weight of ISMB 300?
The reference weight of ISMB 300 is 42.1 kg/m.
9. How do I calculate the total ISMB or ISMC weight?
Use the formula:
Total Weight = Weight per Meter × Length × Quantity
For example, 10 pieces of 6-metre ISMC 150:
16.4 × 6 × 10 = 984 kg
10. What is the current ISMB and ISMC price per kg in 2026?
Prices vary according to section size, steel grade, manufacturer, quantity, location, freight, taxes, and market conditions. Buyers should request a current quotation for the exact section required.
Conclusion
The ISMB & ISMC Weight Chart 2026 provides a practical reference for engineers, contractors, fabricators, procurement teams, steel traders, and construction professionals who need to estimate structural steel quantities.
ISMB beams are commonly used for structural frames, buildings, platforms, bridges, machinery supports, and other load-bearing applications. ISMC channels are widely used for supports, purlins, bracing, platforms, equipment bases, industrial structures, and fabrication.
The kg/m value is particularly useful for estimating the weight of individual sections and calculating total project tonnage. The basic calculation is straightforward:
Total Weight = Weight per Meter × Length × Quantity
For accurate purchasing, however, always verify the exact section designation, dimensions, unit mass, steel grade, length, applicable IS standard, manufacturer, certification, and delivery requirements.
Steel prices can change during the year because of market conditions, raw-material costs, demand, supply, freight, taxes, and regional availability. Therefore, general price references should be used only for preliminary budgeting.
For final procurement, request a current quotation based on your exact requirement.
Size + Grade + Quantity + Length + Delivery Location
Sachiya Steel International Private Limited can assist with industrial steel requirements and related products for domestic and international projects.
Phone: +91 9769056007
Email: [email protected]
Website: www.sachiyasteel.com
