SHS 177.8x177.8x4.78 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 177.8x177.8 cal 6 (México) · Caño estructural 177.8x177.8 (Argentina)

The SHS 177.8x177.8x4.78 steel profile weighs 25.5 kg/m (17.14 lb/ft), has a depth of 177.8 mm (7.00 in), flange width 177.8 mm (7.00 in). Cross-sectional area: 3,249.303 mm². Moment of inertia Ix = 1,606.243 cm⁴, Iy = 1,606.243 cm⁴.

Cross-section (not to scale)

Gauge equivalent: 4.78 mm ≈ 7 gauge (Manufacturers Standard Gage)

Dimensions

Property	Metric	Imperial
Depth (h)	177.8 mm	7.00 in
Width (b)	177.8 mm	7.00 in
Thickness (t)	4.8 mm	0.19 in
Fillet radius (r)	9.6 mm	0.38 in
Weight	25.5 kg/m	17.14 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	3,249.3 mm²	5.036 in²
Moment of inertia (Ix)	1,606.24 cm⁴	38.59 in⁴
Moment of inertia (Iy)	1,606.24 cm⁴	38.59 in⁴
Elastic section modulus (Sx)	180.68 cm³	11.026 in³
Elastic section modulus (Sy)	180.68 cm³	11.026 in³
Plastic section modulus (Zx)	209.52 cm³	12.786 in³
Plastic section modulus (Zy)	209.52 cm³	12.786 in³
Radius of gyration (rx)	7.03 cm	2.768 in
Radius of gyration (ry)	7.03 cm	2.768 in