The tables below provide dimensions and mechanical properties for a wide range of standard steel sections used in structural engineering design. These include universal beams, columns, channels, angles and hollow sections.
Steel section properties such as second moment of area, section modulus and radius of gyration are used to calculate bending stress, deflection and buckling resistance in beams and columns.
Steel sections are widely used in structural engineering for buildings, bridges and mechanical applications where strength and stiffness are critical design factors.
Torsion Factors are only included in the tables below for the hollow sections.
For UB/UC/Joists/Channels and some Tee sections Torsion/Bucking/ or Warp Factors are available on
webpages linked from Torsion
The tables below provide links to steel section dimensions and properties based on British Standards (BS) and European standards (EN). These are commonly used for structural design and engineering calculations.
The data provided is for general reference. For detailed design, engineers should refer to the latest relevant standards and manufacturer data.
| Universal Beams | Universal Beam (BS 4-1:1971) Dimensions | Universal Beam (BS 4-1:1971) Properties. | BS 4-1:1971(Superseded by BS 4:-1 2005) |
| Universal Beams | Universal Beam (BS 4 Part 1: 2005)Dimensions/Properties | BS 4 Part 1: 2005 | |
| Equal Angles (Imperial) | Dimensions | Properties. | BS 4-1:1971 (Superseded by BS 4: 1993) |
| Equal Angles(Metric) | Dimensions/Properties | BS 4848-4 :1972 (Superseded by BS EN 10056-1:1999) |
|
| Equal Angles(Metric) | Dimensions/Properties | BS EN 10056-1:1999 | |
| Unequal Angles(Imperial) | Dimensions....... | Properties. | BS 4-1:1971 (Superseded by BS 4: 1993) |
| Unequal Angles(Metric) | Dimensions/Properties | BS 4848-4 :1972 (Superseded by BS EN 10056-1:1999) |
|
| Unequal Angles(Metric) | Dimensions/Properties | BS EN 10056-1:1999 | |
| Channels | Dimensions | Properties | BS 4-1:1971 (Superseded by BS 4: 1993) |
| Channels | Dimensions/Properties | BS 4: 1993 | |
| Joists | Dimensions | Properties | BS 4-1:1971 (Superseded by BS 4:-1 2005) |
| Joists | Dim_Properties | BS 4-1:2005 | |
| Universal Columns | Dimensions | Properties | BS 4-1:1971 (Superseded by BS 4:-1 2005) |
| Universal Columns | Dimensions_Properties | BS 4:Part 1 2005 | |
| Universal Bearing Piles | Dimensions_Properties | BS 4:Part 1 2005 | |
| Tee Sections | Dimensions | Properties | BS 4-1:1971 (Superseded by BS 4: 1993) |
| L.S. Tee Sections | Dimensions | Properties | BS 4-1:1971 (Superseded by BS 4: 1993) |
| Tee Bars | Dimensions | Properties | BS 4-1:1971 (Superseded by BS 4: 1993) |
| Tees cut from U.Beams | Dim_Properties | BS 4:Part 1 2005 | |
| Tees cut from U.Columns | Dim_Properties | BS 4:Part 1 2005 | |
| Tees cut from Joists) | Dim_Properties | BS 4: 1993- (Superseded) |
|
| Hollow Square Section - Cold Formed | Dimensions/Properties | BS EN 10219:1997 | |
| Hollow Rectangular Section - Cold Formed | Dimensions/Properties | BS EN 10219:1997 | |
| Hollow Square Section - Hot Formed | Dimensions/Properties | BS EN 10210:1997 | |
| Hollow Rectangular Section - Hot Formed | Dimensions/Properties | BS EN 10210:1997 | |
| Parallel Flange Channel | Dimensions/Properties | BS 4 part 1:2005 | |
| Round Bar | Round bar Properties | ||
| Square Bar | Square bar Properties | ||
| Rectangular Bar | Rectangular bar Properties | ||
| Cold Formed Circular Sections | Dimensions/Properties | BS EN 10219 part 2:2006 |
For dimensions of recommended bolt back marks and bolt centres in section - refer to Bolt centres
Steel section properties such as second moment of area, section modulus and radius of gyration are used in structural design to calculate bending stress, deflection and buckling resistance.
Further information can be found on related pages including beam theory, bending stress, torsion and structural design calculations.
Steel section tables provide standard dimensions and properties used in structural engineering design, including bending stress, deflection and load calculations.
Universal Beams (UB) are typically used for bending applications, while Universal Columns (UC) have more equal flange and web dimensions for load-bearing column applications.
Typical properties include section dimensions, second moment of area, section modulus, radius of gyration and weight per metre.
Yes, the data is based on British Standards (BS) and equivalent European standards (EN) used in structural engineering design.
Links to sites with steel section dimensions/properties