SHS 38.1x38.1x3.81 CISC · Weight & Dimensions

CISC, 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 38.1x38.1 cal 8 (México) · Caño estructural 38.1x38.1 (Argentina)

The SHS 38.1x38.1x3.81 steel profile weighs 3.8 kg/m (2.56 lb/ft), has a depth of 38.1 mm (1.50 in), flange width 38.1 mm (1.50 in). Cross-sectional area: 485.197 mm². Moment of inertia Ix = 9.116 cm⁴, Iy = 9.116 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.81 mm ≈ 9 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	38.1 mm	1.50 in
Width (b)	38.1 mm	1.50 in
Thickness (t)	3.8 mm	0.15 in
Fillet radius (r)	7.6 mm	0.30 in
Weight	3.8 kg/m	2.56 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	485.2 mm²	0.752 in²
Moment of inertia (Ix)	9.12 cm⁴	0.22 in⁴
Moment of inertia (Iy)	9.12 cm⁴	0.22 in⁴
Elastic section modulus (Sx)	4.79 cm³	0.292 in³
Elastic section modulus (Sy)	4.79 cm³	0.292 in³
Plastic section modulus (Zx)	6.06 cm³	0.370 in³
Plastic section modulus (Zy)	6.06 cm³	0.370 in³
Radius of gyration (rx)	1.37 cm	0.540 in
Radius of gyration (ry)	1.37 cm	0.540 in