RHS 20x10x1.1 Acindar · Weight & Dimensions

Acindar, cold-formed sections · Rectangular Hollow Section

Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.

Also known as: PTR 20x10 cal 18 (México) · Caño estructural 20x10 (Argentina)

The RHS 20x10x1.1 steel profile weighs 0.5 kg/m (0.31 lb/ft), has a depth of 20 mm (0.79 in), flange width 10 mm (0.39 in). Cross-sectional area: 58.044 mm². Moment of inertia Ix = 0.27 cm⁴, Iy = 0.089 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.1 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	20 mm	0.79 in
Width (b)	10 mm	0.39 in
Thickness (t)	1.1 mm	0.04 in
Fillet radius (r)	2.2 mm	0.09 in
Weight	0.5 kg/m	0.31 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	58.04 mm²	0.090 in²
Moment of inertia (Ix)	0.27 cm⁴	0.01 in⁴
Moment of inertia (Iy)	0.09 cm⁴	0.00 in⁴
Elastic section modulus (Sx)	0.27 cm³	0.016 in³
Elastic section modulus (Sy)	0.18 cm³	0.011 in³
Plastic section modulus (Zx)	0.35 cm³	0.021 in³
Plastic section modulus (Zy)	0.21 cm³	0.013 in³
Radius of gyration (rx)	0.68 cm	0.269 in
Radius of gyration (ry)	0.39 cm	0.154 in