ISMB 225 Weight, Dimensions and IS 808 Properties
ISMB 225 weighs 31.2 kg per metre as per IS 808:1989.
- One 6-metre length weighs 187.2 kg · one 12-metre length weighs 374.4 kg
- Overall depth 225 mm · flange width 110 mm · web thickness 6.5 mm
- Cross-sectional area 3,980 mm² · Ixx = 3,441.8 cm⁴
ISMB 225 bridges the light and medium beam ranges in IS 808:1989. Its 110 mm flange and 225 mm depth make it a practical choice for primary beams in mezzanine floors, industrial platform girders, and roof structures requiring spans of 4–6 m.
ISMB 225 Weight Calculator
Enter the total length in metres to calculate weight.
ISMB 225 — Weight Calculator
IS 808:1989 Dimensions and Sectional Properties
| Property | Symbol | Unit | Value |
|---|---|---|---|
| Overall depth | D | mm | 225 |
| Flange width | B | mm | 110 |
| Web thickness | tw | mm | 6.5 |
| Flange thickness | tf | mm | 11.8 |
| Cross-sectional area | A | mm² | 3,980 |
| Mass per metre | — | kg/m | 31.2 |
| Moment of inertia (x–x) | Ixx | cm⁴ | 3,441.8 |
| Moment of inertia (y–y) | Iyy | cm⁴ | 218.3 |
| Elastic section modulus (x–x) | Zxx | cm³ | 305.9 |
| Elastic section modulus (y–y) | Zyy | cm³ | 39.7 |
| Radius of gyration (x–x) | rxx | cm | 9.29 |
| Radius of gyration (y–y) | ryy | cm | 2.34 |
Dimensions and properties as per IS 808:1989 (reaffirmed 2021). Mass tolerance: ±2.5% per piece per IS 808.
Common Applications of ISMB 225
ISMB 225 is commonly specified for primary mezzanine beams, heavy-duty stair stringers, and industrial platform framing where ISMB 200 is undersized. The wider 110 mm flange improves connection geometry for both bolted and welded end plates. SAIL and Tata Steel supply ISMB 225 in IS 2062 E250 grade.
Worked Example
A fabricator in Coimbatore needs 16 primary beams of ISMB 225 each 5.0 m long for a warehouse mezzanine. Total length = 16 × 5.0 = 80 m. Weight = 80 × 31.2 = 2,496 kg (2.496 tonnes). At ₹58,000 per tonne (May 2026), estimated material cost is approximately ₹1,44,770.
Related ISMB Sections
Compare with adjacent sizes: ISMB 200 (25.4 kg/m) · ISMB 250 (37.3 kg/m). For all ISMB sizes see the Section Reference Library →
Frequently Asked Questions
What is the weight of ISMB 225 per metre?
ISMB 225 weighs 31.2 kg per metre as specified in IS 808:1989. For a standard 6-metre length, the total weight is 187.2 kg. For a 12-metre length, total weight is 374.4 kg.
ISMB 225 ka weight per meter kitna hota hai?
IS 808:1989 standard ke according, ISMB 225 ka weight 31.2 kg/m hota hai. 6 metre ki ek length ka total weight 187.2 kg hoga. Zyada accurate calculation ke liye upar diya gaya calculator use karein.
What are the dimensions of ISMB 225?
ISMB 225 per IS 808:1989 has an overall depth of 225 mm, flange width of 110 mm, web thickness of 6.5 mm, and flange thickness of 11.8 mm. The cross-sectional area is 3,980 mm².
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