I 800x300x11x25 CISC · Weight & Dimensions

CISC, welded sections · Wide Flange (I-beam)

Wide flange beams (W shapes / I-beams) are the most common structural steel profile used in building construction. They are used for beams, columns, and girders in steel-framed buildings and bridges. Designed per AISC 360, Eurocode 3, and NBR 8800.

Also known as: I 800x300x11x25 (México) · Doble T I 800x300x11x25 (Argentina / LATAM) · UB 800 (UK / Australia)

The I 800x300x11x25 steel profile weighs 182.5 kg/m (122.65 lb/ft), has a depth of 800 mm (31.50 in), flange width 300 mm (11.81 in). Cross-sectional area: 23,250 mm². Moment of inertia Ix = 263,984.375 cm⁴, Iy = 11,258.319 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	800 mm	31.50 in
Width (b)	300 mm	11.81 in
Web thickness (tw)	11 mm	0.43 in
Flange thickness (tf)	25 mm	0.98 in
Weight	182.5 kg/m	122.65 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	23,250 mm²	36.038 in²
Moment of inertia (Ix)	263,984.38 cm⁴	6342.22 in⁴
Moment of inertia (Iy)	11,258.32 cm⁴	270.48 in⁴
Elastic section modulus (Sx)	6,599.61 cm³	402.735 in³
Elastic section modulus (Sy)	750.55 cm³	45.802 in³
Plastic section modulus (Zx)	7,359.38 cm³	449.099 in³
Plastic section modulus (Zy)	1,147.69 cm³	70.036 in³
Radius of gyration (rx)	33.7 cm	13.266 in
Radius of gyration (ry)	6.96 cm	2.740 in