RHS 25x20x1.5 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 16 (México) · Caño estructural 25x20 (Argentina)

The RHS 25x20x1.5 steel profile weighs 0.9 kg/m (0.63 lb/ft), has a depth of 25 mm (0.98 in), flange width 20 mm (0.79 in). Cross-sectional area: 120.206 mm². Moment of inertia Ix = 1.009 cm⁴, Iy = 0.711 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 1.5 mm ≈ 16 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	25 mm	0.98 in
Width (b)	20 mm	0.79 in
Thickness (t)	1.5 mm	0.06 in
Fillet radius (r)	3 mm	0.12 in
Weight	0.9 kg/m	0.63 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	120.21 mm²	0.186 in²
Moment of inertia (Ix)	1.01 cm⁴	0.02 in⁴
Moment of inertia (Iy)	0.71 cm⁴	0.02 in⁴
Elastic section modulus (Sx)	0.81 cm³	0.049 in³
Elastic section modulus (Sy)	0.71 cm³	0.043 in³
Plastic section modulus (Zx)	1 cm³	0.061 in³
Plastic section modulus (Zy)	0.85 cm³	0.052 in³
Radius of gyration (rx)	0.92 cm	0.361 in
Radius of gyration (ry)	0.77 cm	0.303 in