Square Hollow Section Weight Chart and Formula Guide

Square Hollow Section (SHS) steel is widely used in construction, steel structures, fabrication, machinery, and engineering projects. Because of its high strength-to-weight ratio and clean appearance, SHS steel tubing has become one of the most common structural materials in modern projects.

Before purchasing or designing with SHS steel tubes, engineers and buyers usually need to know three important things:
Weight per meter
Standard sizes
Wall thickness and dimensions
A reliable square hollow section weight chart helps estimate steel consumption, transportation costs, and structural load capacity more accurately.This guide covers standard SHS sizes, weight charts, formulas, materials, and common applications to help buyers and engineers quickly select the right hollow section steel tube.
 

What Is Square Hollow Section?

Square Hollow Section, commonly called SHS, is a square-shaped welded steel tube with a hollow cross-section. It is manufactured from hot rolled steel coils or strips through cold forming or hot forming processes.
SHS steel is commonly produced according to international standards such as:
ASTM A500
EN 10219
EN 10210
JIS standards
AS/NZS standards
 

Square Hollow Section Weight Chart

The following table shows common SHS steel sizes and approximate theoretical weights.

Product Size (mm)	1.5 mm	2.0 mm	2.5 mm	3.0 mm	4.0 mm	5.0 mm	6.0 mm	6.3 mm
20 × 20	0.852	1.097	1.321	1.526
22 × 22	0.947	1.222
25 × 25	1.088	1.411	1.714	1.997	2.503
30 × 30	1.323	1.725	2.106	2.468	3.131
35 × 35	1.559	2.039	2.499	2.939	3.759
38 × 38		2.227	2.734	3.221
40 × 40	1.794	2.353	2.891	3.41	4.387	5.284
42 × 42				3.598	4.638	5.598
45 × 45	2.03	2.667	3.284	3.881	5.015	6.069
48 × 48				4.163
50 × 50	2.265	2.981	3.676	4.352	5.643	6.854	7.986	8.31
52 × 52				4.54
55 × 55				4.823
60 × 60	2.736	3.609	4.461	5.294	6.899	8.424	9.87	10.289
64 × 64			4.775	5.67
65 × 65		3.923	4.854	5.765	7.527
70 × 70	3.207	4.237	5.246	6.236	8.155	9.994	11.754	12.267
75 × 75				6.707
80 × 80	3.678	4.865	6.03	7.178	9.411	11.564	13.638	14.245
90 × 90	4.149	5.493	6.816	8.12	10.667	13.134	15.522	16.223
100 × 100		6.121	7.601	9.062	11.923	14.704	17.406	18.201
110 × 110		6.749	8.366	10.001	13.179	16.274	19.29	20.18
120 × 120		7.377	9.171	10.946	14.435	17.844	21.174	22.158
125 × 125		7.691	9.564	11.417	15.063	18.629	22.116	23.147
130 × 130			9.956	11.888	15.691	19.414	23.058	24.136
140 × 140				12.83	16.947	20.984	24.942	26.114
150 × 150				13.772	18.203	22.554	26.826	28.092
160 × 160				14.714	19.459	24.124	28.71	30.071
175 × 175				16.127	21.343	26.479	31.536	33.038
180 × 180				16.598	21.971	27.264	32.478	34.027
200 × 200					24.483	30.404	36.246	37.983
220 × 220					26.995	33.544	40.014	41.94
250 × 250					30.763	38.254	45.666	47.874
260 × 260					32.019	39.824	47.55	49.853
300 × 300						46.104	55.086	57.765
325 × 325						50.029	59.796	62.711
350 × 350							64.506	67.656
400 × 400							73.926	77.547

Square Hollow Section Weight Formula
The theoretical weight of square hollow section steel can be calculated using the following formula:
W=0.00785×(4t(B−t))
Where:
W = Weight per meter (kg/m)
B = Section width (mm)
t = Wall thickness (mm)
This formula is commonly used in steel fabrication and structural engineering calculations.