RHS 300x140x8 SAISC · Weight & Dimensions

SAISC, 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 300x140 (México) · Caño estructural 300x140 (Argentina)

The RHS 300x140x8 steel profile weighs 51.5 kg/m (34.63 lb/ft), has a depth of 300 mm (11.81 in), flange width 140 mm (5.51 in). Cross-sectional area: 6,564.248 mm². Moment of inertia Ix = 7,342.426 cm⁴, Iy = 2,243.274 cm⁴.

Cross-section (not to scale)

Dimensions

Property	Metric	Imperial
Depth (h)	300 mm	11.81 in
Width (b)	140 mm	5.51 in
Thickness (t)	8 mm	0.31 in
Fillet radius (r)	20 mm	0.79 in
Weight	51.5 kg/m	34.63 lb/ft

Section Properties

Property	Metric	Imperial
Area (A)	6,564.25 mm²	10.175 in²
Moment of inertia (Ix)	7,342.43 cm⁴	176.40 in⁴
Moment of inertia (Iy)	2,243.27 cm⁴	53.89 in⁴
Elastic section modulus (Sx)	489.5 cm³	29.871 in³
Elastic section modulus (Sy)	320.47 cm³	19.556 in³
Plastic section modulus (Zx)	616.91 cm³	37.647 in³
Plastic section modulus (Zy)	363.14 cm³	22.160 in³
Radius of gyration (rx)	10.58 cm	4.164 in
Radius of gyration (ry)	5.85 cm	2.302 in