Reference · Steel section tables
Steel Section Tables
Dimensions and properties of the standard UK steel sections. One page per section type, each with a diagram, a sortable table and a CSV download. All eight tables are also in one printable PDF.
Section types
Choose a section
Each table lists mass per metre, the main dimensions, area, and second moment of area and elastic modulus where verified.
Universal beams
96 sizes · 127 × 76 × 13 to 1016 × 305 × 487
View tableUniversal columns
36 sizes · 152 × 152 × 23 to 356 × 406 × 634
View tableParallel flange channels
16 sizes · 100 × 50 × 10 to 430 × 100 × 64
View tableEqual angles
66 sizes · 20 × 20 × 3 to 250 × 250 × 35
View tableUnequal angles
44 sizes · 30 × 20 × 3 to 200 × 150 × 18
View tableSquare hollow sections
123 sizes · 40 × 40 × 3.2 to 400 × 400 × 17.5
View tableRectangular hollow sections
161 sizes · 50 × 30 × 3.2 to 500 × 300 × 17.5
View tableCircular hollow sections
103 sizes · 42.4 × 3.2 to 508 × 17.5
View tableCalculator
Steel weight calculator
Pick a section and size, enter the length and quantity, and get the total weight. Plate and flat bar are worked out from their dimensions at 7,850 kg/m³.
- Section weight = mass per metre × length × quantity
- Plate or flat bar weight = length × width × thickness × 7,850 kg/m³ × quantity
A 305 × 165 × 40 UB is 40.3 kg/m, so four 6 m lengths weigh 40.3 × 6 × 4 = 967.2 kg. A 10 mm plate 1,000 × 500 mm weighs 1.0 × 0.5 × 0.01 × 7,850 = 39.25 kg. Weights are nominal and exclude coatings, plates and fittings.
Downloads
PDF and CSV
The PDF has every table with its diagram, on A4, ready to print. The CSV files suit spreadsheets, scripts and CAD tools.
How the data was checked
Sources and method
Sizes and dimensions are compiled from the standard section ranges and checked against current manufacturer data (British Steel for beams, columns, channels and large angles; Tata Steel Celsius for hollow sections) and independent published tables. We recalculated area, second moment of area and elastic modulus from the nominal dimensions for every size, and show a value only where it matches a published figure. Diagrams and layout are our own.
Standards
- BS 4-1:2005 Structural steel sections. Specification for hot-rolled sections (UB, UC, PFC)
- BS EN 10365:2017 Hot rolled steel channels, I and H sections. Dimensions and masses
- BS EN 10056-1:2017 Structural steel equal and unequal leg angles. Dimensions
- BS EN 10210-2:2019 Hot finished steel structural hollow sections. Tolerances, dimensions and sectional properties
- BS EN 10219-2:2019 Cold formed welded steel structural hollow sections (not covered by these tables)
Reference only
Reference only. Values are nominal figures for the standard UK section ranges. Check them against current manufacturer data, and have a structural engineer confirm sizes before you use them in design. Koyda Ltd accepts no liability for decisions based on these tables.
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