UK RHS & Section Properties

Browse Rectangular hollow sections from the British steel section catalog. Compare metric-native dimensions and section properties, open a designation for full details, or load a section into Optimal Beam.

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Showing UK · RHS · Metric

British-Sections-1 and Eurocode 3 UK shared angle/hollow tables · 1,196 sections

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Showing the most relevant 75 sections.

UK RHS dimensions and section properties in metric units
Designation Weight (kg/m) Depth, d (mm) Width (mm) Area (mm²) Ix (mm⁴) Sx (mm³)
RHS 500×200×8 85.4 500 200 10900 340000000 1360000
RHS 500×200×8.8 93.6 500 200 11900 372000000 1490000
RHS 500×300×8 97.9 500 300 12500 437000000 1750000
RHS 500×200×10 106 500 200 13500 418000000 1670000
RHS 500×300×8.8 107 500 300 13700 478000000 1910000
RHS 500×200×11 116 500 200 14800 455000000 1820000
RHS 500×300×10 122 500 300 15500 538000000 2150000
RHS 500×200×12.5 131 500 200 16700 510000000 2040000
RHS 500×300×11 133 500 300 17000 586000000 2350000
RHS 500×200×14.2 148 500 200 18900 569000000 2280000
RHS 500×300×12.5 151 500 300 19200 658000000 2630000
RHS 500×200×16 166 500 200 21100 630000000 2520000
RHS 500×300×14.2 170 500 300 21700 737000000 2950000
RHS 500×300×16 191 500 300 24300 818000000 3270000
RHS 450×150×8 72.8 450 150 9280 223000000 990000
RHS 450×150×8.8 79.8 450 150 10200 243000000 1080000
RHS 450×250×8 85.4 450 250 10900 301000000 1340000
RHS 450×150×10 90.2 450 150 11500 272000000 1210000
RHS 450×250×8.8 93.6 450 250 11900 328000000 1460000
RHS 450×150×11 98.8 450 150 12600 296000000 1320000
RHS 450×250×10 106 450 250 13500 369000000 1640000
RHS 450×150×12.5 112 450 150 14200 331000000 1470000
RHS 450×250×11 116 450 250 14800 402000000 1790000
RHS 450×150×14.2 126 450 150 16000 368000000 1640000
RHS 450×250×12.5 131 450 250 16700 450000000 2000000
RHS 450×150×16 141 450 150 17900 406000000 1810000
RHS 450×250×14.2 148 450 250 18900 503000000 2240000
RHS 450×250×16 166 450 250 21100 557000000 2480000
RHS 400×150×6.3 52.8 400 150 6730 133000000 663000
RHS 400×200×6.3 57.8 400 200 7360 157000000 785000
RHS 400×150×7.1 59.3 400 150 7550 148000000 740000
RHS 400×200×7.1 64.9 400 200 8260 175000000 877000
RHS 400×150×8 66.5 400 150 8480 165000000 824000
RHS 400×200×8 72.8 400 200 9280 196000000 978000
RHS 400×150×8.8 72.9 400 150 9290 180000000 898000
RHS 400×200×8.8 79.8 400 200 10200 213000000 1070000
RHS 400×150×10 82.4 400 150 10500 201000000 1010000
RHS 400×300×8 85.4 400 300 10900 257000000 1280000
RHS 400×150×11 90.2 400 150 11500 218000000 1090000
RHS 400×200×10 90.2 400 200 11500 239000000 1200000
RHS 400×300×8.8 93.6 400 300 11900 281000000 1400000
RHS 400×200×11 98.8 400 200 12600 260000000 1300000
RHS 400×150×12.5 102 400 150 13000 244000000 1220000
RHS 400×300×10 106 400 300 13500 315000000 1580000
RHS 400×200×12.5 112 400 200 14200 291000000 1450000
RHS 400×150×14.2 115 400 150 14600 271000000 1360000
RHS 400×300×11 116 400 300 14800 343000000 1720000
RHS 400×200×14.2 126 400 200 16000 324000000 1620000
RHS 400×150×16 128 400 150 16300 298000000 1490000
RHS 400×300×12.5 131 400 300 16700 385000000 1920000
RHS 400×200×16 141 400 200 17900 357000000 1790000
RHS 400×300×14.2 148 400 300 18900 430000000 2150000
RHS 400×300×16 166 400 300 21100 475000000 2380000
RHS 350×150×5 38.3 350 150 4870 76600000 437000
RHS 350×150×5.6 42.7 350 150 5440 85100000 486000
RHS 350×150×6.3 47.9 350 150 6100 94800000 542000
RHS 350×200×6.3 52.8 350 200 6730 113000000 648000
RHS 350×150×7.1 53.7 350 150 6840 106000000 604000
RHS 350×250×6.3 57.8 350 250 7360 132000000 754000
RHS 350×200×7.1 59.3 350 200 7550 127000000 723000
RHS 350×150×8 60.3 350 150 7680 118000000 673000
RHS 350×250×7.1 64.9 350 250 8260 147000000 843000
RHS 350×150×8.8 66 350 150 8410 128000000 732000
RHS 350×200×8 66.5 350 200 8480 141000000 806000
RHS 350×250×8 72.8 350 250 9280 164000000 940000
RHS 350×200×8.8 72.9 350 200 9290 154000000 878000
RHS 350×150×10 74.5 350 150 9490 143000000 818000
RHS 350×250×8.8 79.8 350 250 10200 179000000 1020000
RHS 350×150×11 81.5 350 150 10400 155000000 888000
RHS 350×200×10 82.4 350 200 10500 172000000 983000
RHS 350×200×11 90.2 350 200 11500 187000000 1070000
RHS 350×250×10 90.2 350 250 11500 201000000 1150000
RHS 350×150×12.5 91.9 350 150 11700 173000000 988000
RHS 350×250×11 98.8 350 250 12600 219000000 1250000
RHS 350×200×12.5 102 350 200 13000 209000000 1190000
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Family overview

What are UK RHS?

Browse Rectangular hollow sections from the British steel section catalog. Compare metric-native dimensions and section properties, open a designation for full details, or load a section into Optimal Beam.

Designations

Understanding RHS designations

RHS designations list outside height × width × wall thickness in millimetres.

Nominal depth series

Browse by series

Use these series labels to filter the finder table above.

RHS

Properties

RHS properties explained

These properties are especially relevant when comparing RHS. View the complete property glossary.

Symbol Property Units Why it matters
Weight Weight lb/ft, kg/m Mass per unit length; used for self-weight and economy comparisons
Height Outside height in, mm Outside height of a rectangular or square HSS
Width Outside width in, mm Overall width (angle leg or HSS side)
t Thickness in, mm Leg thickness for angles
A Cross-sectional area in², mm² Total steel cross-sectional area
Ix Moment of inertia (x) in⁴, mm⁴ Major-axis flexural stiffness
Iy Moment of inertia (y) in⁴, mm⁴ Minor-axis flexural stiffness
Sx Elastic section modulus (x) in³, mm³ Elastic bending property about the x-axis
Sy Elastic section modulus (y) in³, mm³ Elastic bending property about the y-axis
Zx Plastic section modulus (x) in³, mm³ Plastic bending property about the x-axis
Zy Plastic section modulus (y) in³, mm³ Plastic bending property about the y-axis
rx Radius of gyration (x) in, mm Strong-axis radius of gyration
ry Radius of gyration (y) in, mm Weak-axis radius of gyration and lateral stability relevance
J Torsional constant in⁴, mm⁴ Torsional constant

Library summary

Computed RHS summary

The current UK RHS library contains 312 sections across 1 nominal-depth series. Published weights range from 2.22 to 128.35 lb/ft , and actual depths range from 1.97 to 19.69 inches .

Lightest section
RHS 50x30x2.9
Heaviest section
RHS 500x300x16
Ix range
0.32 – 1,965.25 in⁴
Sx range
0.32 – 199.55 in³

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Source: British-Sections-1 and Eurocode 3 UK shared angle/hollow tables v2023.11 · Verified July 2026 · View methodology