SHS 20x20x0.8 Acindar · Weight & Dimensions

Acindar, cold-formed sections · Square Hollow Section

Square Hollow Sections (SHS) are tubular profiles with equal sides, ideal for columns and compression members due to their uniform buckling resistance in all directions.

Also known as: PTR 20x20 (México) · Caño estructural 20x20 (Argentina)

The SHS 20x20x0.8 steel profile weighs 0.5 kg/m (0.32 lb/ft), has a depth of 20 mm (0.79 in), flange width 20 mm (0.79 in). Cross-sectional area: 59.792 mm². Moment of inertia Ix = 0.362 cm⁴, Iy = 0.362 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 0.8 mm ≈ 18 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	20 mm	0.79 in
Width (b)	20 mm	0.79 in
Thickness (t)	0.8 mm	0.03 in
Fillet radius (r)	1.6 mm	0.06 in
Weight	0.5 kg/m	0.32 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	59.79 mm²	0.093 in²
Moment of inertia (Ix)	0.36 cm⁴	0.01 in⁴
Moment of inertia (Iy)	0.36 cm⁴	0.01 in⁴
Elastic section modulus (Sx)	0.36 cm³	0.022 in³
Elastic section modulus (Sy)	0.36 cm³	0.022 in³
Plastic section modulus (Zx)	0.43 cm³	0.026 in³
Plastic section modulus (Zy)	0.43 cm³	0.026 in³
Radius of gyration (rx)	0.78 cm	0.306 in
Radius of gyration (ry)	0.78 cm	0.306 in