SHS 38.1x38.1x3.18 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 11 (México) · Caño estructural 38.1x38.1 (Argentina)

The SHS 38.1x38.1x3.18 steel profile weighs 3.3 kg/m (2.20 lb/ft), has a depth of 38.1 mm (1.50 in), flange width 38.1 mm (1.50 in). Cross-sectional area: 418.141 mm². Moment of inertia Ix = 8.218 cm⁴, Iy = 8.218 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.18 mm ≈ 10 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)	3.2 mm	0.13 in
Fillet radius (r)	6.4 mm	0.25 in
Weight	3.3 kg/m	2.20 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	418.14 mm²	0.648 in²
Moment of inertia (Ix)	8.22 cm⁴	0.20 in⁴
Moment of inertia (Iy)	8.22 cm⁴	0.20 in⁴
Elastic section modulus (Sx)	4.31 cm³	0.263 in³
Elastic section modulus (Sy)	4.31 cm³	0.263 in³
Plastic section modulus (Zx)	5.35 cm³	0.327 in³
Plastic section modulus (Zy)	5.35 cm³	0.327 in³
Radius of gyration (rx)	1.4 cm	0.552 in
Radius of gyration (ry)	1.4 cm	0.552 in