This page provides a structured I beam dimensions chart covering commonly used sizes for construction, fabrication, and structural applications. You can review standard I beam dimensions in mm, including section height, flange width, web thickness, flange thickness, and reference weight data.
For full product details, grade options, and export supply capability, please refer to our steel I beam product page or contact our team for quotation support.
I Beam Dimensions and Size Chart
I beams are widely used in structural frameworks, machinery bases, bridges, and support systems where strength-to-weight efficiency is required. In procurement and engineering stages, buyers often need quick access to dimension data before moving forward with commercial discussions. Therefore, this page focuses on I beam size chart and specification reference rather than detailed product introduction.
If you are looking for material grades, production range, surface condition, or export packaging details, you can check our steel I beam supply page for complete information.
| Designation | Height (mm) | Flange Width (mm) | Web Thickness (mm) | Length (m) |
|---|---|---|---|---|
| 100 × 68 | 100 | 68 | 4.5 | 6-9 |
| 120 × 74 | 120 | 74 | 5 | 6-9 |
| 140 × 80 | 140 | 80 | 5.5 | 6-9 |
| 160 × 88 | 160 | 88 | 6 | 6-12 |
| 180 × 94 | 180 | 94 | 6.5 | 6-12 |
| 200 × 100 | 200 | 100 | 7 | 9-12 |
| 200 × 102 | 200 | 102 | 9 | 9-12 |
| 220 × 110 | 220 | 110 | 7.5 | 9-12 |
| 220 × 112 | 220 | 112 | 9.5 | 9-12 |
| 250 × 116 | 250 | 116 | 8 | 9-12 |
| 250 × 118 | 250 | 118 | 10 | 9-12 |
| 280 × 122 | 280 | 122 | 8.5 | 9-12 |
| 280 × 124 | 280 | 124 | 10.5 | 9-12 |
| 300 × 126 | 300 | 126 | 9 | 12 |
| 300 × 128 | 300 | 128 | 11 | 12 |
| 300 × 130 | 300 | 130 | 13 | 12 |
| 300 × 134 | 300 | 134 | 9 | 6-12 |
| 320 × 130 | 320 | 130 | 9.5 | 12 |
| 320 × 134 | 320 | 134 | 13.5 | 12 |
| 360 × 136 | 360 | 136 | 10 | 12 |
| 400 × 142 | 400 | 142 | 10.5 | 12 |
| 450 × 150 | 450 | 150 | 11.5 | 12 |
| 500 × 158 | 500 | 158 | 12 | 12 |
| 550 × 166 | 550 | 166 | 12.5 | 12 |
| 560 × 166 | 560 | 166 | 12.5 | 12 |
| Designation | Height (mm) | Breadth(mm) | Flange Width (mm) | Web Thickness (mm) |
|---|---|---|---|---|
| IPE 80 | 80 | 46 | 3.8 | 5.2 |
| IPEA 80 | 78 | 46 | 3.3 | 4.2 |
| IPEAA 80 | 78 | 46 | 3.2 | 4.2 |
| IPEAAA 80 | 78 | 46 | 3 | 4 |
| IPEAAAA 80 | 76 | 46 | 3.9 | 3.1 |
| IPE 100 | 100 | 55 | 4.1 | 5.7 |
| IPEA 100 | 98 | 55 | 3.6 | 4.7 |
| IPEAA 100 | 97.6 | 55 | 3.6 | 4.5 |
| IPEAAA 100 | 97 | 55 | 3.4 | 4.3 |
| IPEAAAA 100 | 96 | 55 | 2.9 | 3.6 |
| IPE 120 | 120 | 64 | 4.4 | 6.3 |
| IPEA 120 | 117.6 | 64 | 3.8 | 5.1 |
| IPEAA 120 | 117 | 64 | 3.8 | 4.8 |
| IPEAAA 120 | 117 | 64 | 3.5 | 4.6 |
| IPEAAAA 120 | 115 | 64 | 3 | 3.9 |
| IPE 140 | 140 | 73 | 4.7 | 6.9 |
| IPEA 140 | 137.4 | 73 | 3.8 | 5.6 |
| IPEAA 140 | 136.6 | 73 | 3.5 | 5.2 |
| IPEAAA 140 | 136 | 73 | 3.5 | 5 |
| IPEAAAA 140 | 134 | 73 | 3.3 | 4.1 |
| IPE 160 | 160 | 82 | 5 | 7.1 |
| IPEA 160 | 157 | 82 | 4 | 5.9 |
| IPEAA 160 | 156.4 | 82 | 4 | 5.6 |
| IPEAAA 160 | 156 | 82 | 3.7 | 5.4 |
| IPEAAAA 160 | 154 | 82 | 3.6 | 4.3 |
| IPE 180 | 180 | 91 | 5.3 | 8 |
| IPEA 180 | 177 | 91 | 4.3 | 6.5 |
| IPEAA 180 | 176.4 | 91 | 4.3 | 6.2 |
| IPE 200 | 200 | 100 | 5.6 | 8.5 |
| IPEA 200 | 197 | 100 | 4.5 | 7 |
| IPEAA 200 | 196.4 | 100 | 4.5 | 6.7 |
| IPEAAA 200 | 196 | 100 | 4.1 | 6.5 |
| IPEAAAA 200 | 193 | 100 | 4.1 | 5.2 |
| IPE 220 | 220 | 110 | 5.9 | 9.2 |
| IPEAA 220 | 216.4 | 110 | 4.7 | 7.4 |
| IPE 240 | 240 | 120 | 6.2 | 9.8 |
| IPE 270 | 270 | 135 | 6.6 | 10.2 |
| IPE 300 | 300 | 150 | 7.1 | 10.7 |
| IPE 330 | 330 | 160 | 7.5 | 11.5 |
| IPE 360 | 360 | 170 | 8 | 12.7 |
| IPE 400 | 400 | 180 | 8.6 | 13.5 |
| IPE 450 | 450 | 190 | 9.4 | 14.6 |
| IPE 500 | 500 | 200 | 10.2 | 16 |
| IPE 550 | 550 | 210 | 11.1 | 17.2 |
| Designation | Height (mm) | Breadth(mm) | Flange Width (mm) | Web Thickness (mm) |
|---|---|---|---|---|
| IPN 80 | 80 | 42 | 3.9 | 5.9 |
| IPN 100 | 100 | 50 | 4.5 | 6.8 |
| IPN 120 | 120 | 58 | 5.1 | 7.7 |
| IPN 140 | 140 | 66 | 5.7 | 8.6 |
| IPN 160 | 160 | 74 | 6.3 | 9.5 |
| IPN 180 | 180 | 82 | 6.9 | 10.4 |
| IPN 200 | 200 | 90 | 7.5 | 11.3 |
| IPN 220 | 220 | 98 | 8.1 | 12.2 |
| IPN 240 | 240 | 106 | 8.7 | 13.1 |
| IPN 260 | 260 | 113 | 9.4 | 14.1 |
| IPN 280 | 280 | 119 | 10.1 | 15.2 |
| IPN 300 | 300 | 125 | 10.8 | 16.2 |
| IPN 320 | 320 | 131 | 11.5 | 17.3 |
| IPN 340 | 340 | 137 | 12.2 | 18.3 |
| IPN 360 | 360 | 143 | 13 | 19.5 |
| IPN 380 | 380 | 149 | 13.7 | 20.5 |
| IPN 400 | 400 | 155 | 14.4 | 21.6 |
| IPN 450 | 450 | 170 | 16.2 | 24.3 |
| IPN 500 | 500 | 185 | 18 | 27 |
| IPN 550 | 550 | 200 | 19 | 30 |
| IPN 600 | 600 | 215 | 21.6 | 32.4 |
Notes:
The table above provides general I beam dimension reference for layout and structure demonstration. Actual sizes, tolerance, and weight should be verified according to applicable standards and mill production range.
If you require exact stock availability or project-based supply, please submit your required dimensions through our I beam quotation page for confirmation.
I beam dimensions are typically defined by section height and flange width, with additional parameters such as web thickness and flange thickness used for engineering and procurement decisions. Compared with H beams, I beams usually have narrower flanges and are commonly used in lighter structural applications.
A standard I beam size chart usually includes:
Section height
Flange width
Web thickness
Flange thickness
Theoretical weight
Length range
Applicable standard
For structural comparison, you may also review the difference between I beam and H beam dimensions in our beam comparison guide to better understand selection criteria.
I beam dimensions may vary depending on different standard systems and regional designation methods. In global steel trade, size references may follow different standards depending on project requirements and destination markets.
When reviewing I beam specifications, it is important to confirm:
Whether the dimensions are metric or imperial
Whether the designation belongs to a specific standard system
Whether required length is standard or custom cut
Whether the size is within actual mill rolling range
Whether weight and tolerance meet project specifications
For commercial supply, buyers are advised to confirm dimensions together with grade, quantity, and destination to ensure accurate quotation from a reliable I beam supplier.
FAQ About I Beam Dimensions
Q1: What are standard I beam dimensions?
A1: Standard I beam dimensions include section height, flange width, web thickness, flange thickness, and weight per meter. Exact values depend on the applicable standard.
Q2: What is included in an I beam size chart?
A2: An I beam size chart typically includes designation, section size, thickness details, and theoretical weight for reference.
Q3: Are all I beam sizes available in stock?
A3: Not necessarily. Availability depends on mill production, grade, and inventory. It is recommended to confirm with a supplier before ordering.
Q4: Can I beams be customized in length?
A4: Yes, many I beams can be supplied in standard lengths or cut to required sizes depending on order quantity and processing capability.
Q5: What is the difference between an I beam dimension page and a steel I beam product page?
A5: This page focuses on dimension reference and size comparison, while a product page provides detailed information such as grade, application, supply capability, and pricing support.
Q6: How to choose the correct I beam size?
A6: The correct size depends on structural load, span, and engineering requirements. Buyers should confirm specifications along with grade and quantity.
Looking for a quotation based on specific I beam dimensions? You can send us your required size, grade, length, quantity, and destination port. Our team supports standard sizes, custom cutting, and export shipment arrangements.
For faster response, please include your dimension details and project requirements when submitting an inquiry through our I beam contact page.
