SHS 25.4x25.4x3.18 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 25.4x25.4 cal 11 (México) · Caño estructural 25.4x25.4 (Argentina)

The SHS 25.4x25.4x3.18 steel profile weighs 2.0 kg/m (1.35 lb/ft), has a depth of 25.4 mm (1.00 in), flange width 25.4 mm (1.00 in). Cross-sectional area: 256.597 mm². Moment of inertia Ix = 1.994 cm⁴, Iy = 1.994 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 3.18 mm ≈ 10 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	25.4 mm	1.00 in
Width (b)	25.4 mm	1.00 in
Thickness (t)	3.2 mm	0.13 in
Fillet radius (r)	6.4 mm	0.25 in
Weight	2.0 kg/m	1.35 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	256.6 mm²	0.398 in²
Moment of inertia (Ix)	1.99 cm⁴	0.05 in⁴
Moment of inertia (Iy)	1.99 cm⁴	0.05 in⁴
Elastic section modulus (Sx)	1.57 cm³	0.096 in³
Elastic section modulus (Sy)	1.57 cm³	0.096 in³
Plastic section modulus (Zx)	2.06 cm³	0.125 in³
Plastic section modulus (Zy)	2.06 cm³	0.125 in³
Radius of gyration (rx)	0.88 cm	0.347 in
Radius of gyration (ry)	0.88 cm	0.347 in