RHS 180x140x8 GOST · Weight & Dimensions

GOST, cold-formed sections · Rectangular Hollow Section

Rectangular Hollow Sections (RHS) are tubular profiles with excellent torsional resistance and aesthetic appeal. Used for columns, trusses, and exposed structural elements.

Also known as: PTR 180x140 (México) · Caño estructural 180x140 (Argentina)

The RHS 180x140x8 steel profile weighs 36.9 kg/m (24.79 lb/ft), has a depth of 180 mm (7.09 in), flange width 140 mm (5.51 in). Cross-sectional area: 4,699.186 mm². Moment of inertia Ix = 2,117.044 cm⁴, Iy = 1,433.049 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	180 mm	7.09 in
Width (b)	140 mm	5.51 in
Thickness (t)	8 mm	0.31 in
Fillet radius (r)	16 mm	0.63 in
Weight	36.9 kg/m	24.79 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	4,699.19 mm²	7.284 in²
Moment of inertia (Ix)	2,117.04 cm⁴	50.86 in⁴
Moment of inertia (Iy)	1,433.05 cm⁴	34.43 in⁴
Elastic section modulus (Sx)	235.23 cm³	14.354 in³
Elastic section modulus (Sy)	204.72 cm³	12.493 in³
Plastic section modulus (Zx)	285.64 cm³	17.431 in³
Plastic section modulus (Zy)	240.29 cm³	14.664 in³
Radius of gyration (rx)	6.71 cm	2.643 in
Radius of gyration (ry)	5.52 cm	2.174 in