C 120x55x20x2 Dabarca · Weight & Dimensions

Dabarca, cold-formed sections · Cold-formed Lipped Channel

Cold-formed lipped channels (C shapes) are lightweight profiles commonly used as purlins, girts, and light framing members. The stiffening lips increase local buckling resistance. Designed per AISI S100 and NBR 14762.

Also known as: Montén de 5 pulgadas (México) · PFC 120x55x20x2 (UK / Australia)

The C 120x55x20x2 steel profile weighs 4.0 kg/m (2.71 lb/ft), has a depth of 120 mm (4.72 in), flange width 55 mm (2.17 in). Cross-sectional area: 513.684 mm². Moment of inertia Ix = 116.387 cm⁴, Iy = 22.631 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	120 mm	4.72 in
Width (b)	55 mm	2.17 in
Thickness (t)	2 mm	0.08 in
Lip	20 mm	0.79 in
Fillet radius (r)	2 mm	0.08 in
Weight	4.0 kg/m	2.71 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	513.68 mm²	0.796 in²
Moment of inertia (Ix)	116.39 cm⁴	2.80 in⁴
Moment of inertia (Iy)	22.63 cm⁴	0.54 in⁴
Elastic section modulus (Sx)	19.4 cm³	1.184 in³
Elastic section modulus (Sy)	6.33 cm³	0.386 in³
Plastic section modulus (Zx)	23.23 cm³	1.418 in³
Plastic section modulus (Zy)	8.77 cm³	0.535 in³
Radius of gyration (rx)	4.76 cm	1.874 in
Radius of gyration (ry)	2.1 cm	0.826 in