RHS 25x20x2 Hiasa · Weight & Dimensions

Hiasa, 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 25x20 cal 15 (México) · Caño estructural 25x20 (Argentina)

The RHS 25x20x2 steel profile weighs 1.2 kg/m (0.81 lb/ft), has a depth of 25 mm (0.98 in), flange width 20 mm (0.79 in). Cross-sectional area: 153.699 mm². Moment of inertia Ix = 1.218 cm⁴, Iy = 0.855 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 2 mm ≈ 14 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	25 mm	0.98 in
Width (b)	20 mm	0.79 in
Thickness (t)	2 mm	0.08 in
Fillet radius (r)	4 mm	0.16 in
Weight	1.2 kg/m	0.81 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	153.7 mm²	0.238 in²
Moment of inertia (Ix)	1.22 cm⁴	0.03 in⁴
Moment of inertia (Iy)	0.85 cm⁴	0.02 in⁴
Elastic section modulus (Sx)	0.97 cm³	0.059 in³
Elastic section modulus (Sy)	0.85 cm³	0.052 in³
Plastic section modulus (Zx)	1.24 cm³	0.075 in³
Plastic section modulus (Zy)	1.06 cm³	0.064 in³
Radius of gyration (rx)	0.89 cm	0.351 in
Radius of gyration (ry)	0.75 cm	0.294 in