UC 305 x 305 x 137

305 x 305 x 137 UC · British wide flange columns · BS 4-1:2005

UC 305 x 305 x 137 is one of the Universal columns (UC) of the British library (british wide flange columns): 320.5 mm deep and 309.2 mm wide, web 13.8 mm, flanges 21.7 mm, 136.9 kg/m, area 174.4 cm².

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Cross-section to scale
DimensionValueDescription
h320.5 mmOverall depth
b309.2 mmOverall width (flange width, or leg length)
tw13.8 mmWeb thickness
tf21.7 mmFlange thickness
r115.2 mmRoot radius (fillet between flange and web), or external corner radius for hollow sections
hi277.1 mmInternal depth between flanges
d246.7 mmDepth of the straight portion of the web between fillets
ss75 mmStiff bearing length
G136.9 kg/mMass per metre
A174.4 cm²Cross-sectional area
AL1.824 m²/mPainting surface per metre
AG13.32 m²/tPainting surface per tonne

Section properties

The structural properties of UC 305 x 305 x 137 are available in the Steel Profiles app with the British library:

  • Iy, Wel,y, Wpl,y, iy
  • Avz shear area
  • Iz, Wel,z, Wpl,z, iz
  • IT and Iw
  • Maximum bolt size and flange gauges
  • EN 1993-1-1 class for S235, S355 and S460

The app also runs design checks to EN 1993-1-1 on UC 305 x 305 x 137, finds the closest sections in the AISC, European, Canadian and Australian standards and compares it side by side with any other section.

Full properties in Steel Profiles

The free app shows UC 305 x 305 x 137 with its dimensions and drawing on iPhone, iPad and Mac. The British library unlocks the complete structural properties, the design checks to Eurocode 3, the Equivalent Finder across standards and the comparison of up to three sections. Favorites, weight lists and saved sections sync through iCloud.