I 900x300x11x25 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 900x300x11x25 (México) · Doble T I 900x300x11x25 (Argentina / LATAM) · UB 900 (UK / Australia)

The I 900x300x11x25 steel profile weighs 191.2 kg/m (128.45 lb/ft), has a depth of 900 mm (35.43 in), flange width 300 mm (11.81 in). Cross-sectional area: 24,350 mm². Moment of inertia Ix = 343,482.292 cm⁴, Iy = 11,259.428 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	900 mm	35.43 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	191.2 kg/m	128.45 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	24,350 mm²	37.742 in²
Moment of inertia (Ix)	343,482.29 cm⁴	8252.16 in⁴
Moment of inertia (Iy)	11,259.43 cm⁴	270.51 in⁴
Elastic section modulus (Sx)	7,632.94 cm³	465.793 in³
Elastic section modulus (Sy)	750.63 cm³	45.806 in³
Plastic section modulus (Zx)	8,549.38 cm³	521.717 in³
Plastic section modulus (Zy)	1,150.71 cm³	70.221 in³
Radius of gyration (rx)	37.56 cm	14.787 in
Radius of gyration (ry)	6.8 cm	2.677 in