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Structural · HSS — rectangular / square

HSS6x6x3/8 Steel Tube (HSS) — Dimensions & Properties

HSS6x6x3/8 weighs 27.48 lb/ft and is about 6 in deep. Below: the full AISC section properties, a scaled cross-section, and a pre-filled weight calculator.

Weight
27.48lb/ft
Depth
6in
Width
6in
Area
7.58in²
Shape
HSS6X6X3/8 · HSS — rectangular / square

Enter feet + inches, e.g. 20' or 18' 6".

= 20' (240″)
pcs
Cost estimate (optional)
$/lb

Optional. Prices are volatile — use your current mill/supplier rate.

Total weight
1 × HSS6X6X3/8
550lb
Per piece
549.6lb
Pieces
1
Total
549.6lb
Tons
0.275t
B 6"Ht6"
ƒShow the math
  1. 1.Weight per foot (from AISC)per AISC Shapes Database v16.0

    HSS6X6X3/8 is a listed shape; its nominal weight is a published property.

    = 27.48 lb/ft
  2. 2.Length in feet
    length (in) ÷ 12
    240 ÷ 12
    = 20 ft
  3. 3.Weight per piece
    weight per foot × length
    27.48 × 20
    = 549.6 lb
  4. 4.Total weight
    weight per piece × quantity
    549.6 × 1
    = 549.6 lb
  5. 5.Convert to tons
    total lb ÷ 2000
    549.6 ÷ 2000
    = 0.275 tons

Section properties

Geometry
Weight
27.48lb/ft
Area, A
7.58in²
Depth, Ht
6in
Width, B
6in
Design wall, t
0.349in
Strong axis (x-x)
Ix
39.5in⁴
Sx
13.2in³
Zx
15.8in³
rx
2.28in
Weak axis (y-y)
Iy
39.5in⁴
Sy
13.2in³
Zy
15.8in³
ry
2.28in
Torsion & warping
J
65.7in⁴
Before you rely on this
  • Listed weight is the AISC theoretical (nominal) weight per foot. Actual mill weight varies within ASTM rolling tolerance, roughly ±2.5%.
  • This is bare member steel only. Add plates, stiffeners, connections, bolts, and coatings for a full erected-steel takeoff.

Similar shapes

Same series and nearest depths — compare weight and section modulus when you are sizing.

HSS6x6x1/4 19.02 lb/ftHSS6x6x1/2 35.24 lb/ftHSS6x4x1/4 15.62 lb/ftHSS5x5x1/4 15.62 lb/ftHSS5x5x3/8 22.37 lb/ftHSS4x4x1/4 12.21 lb/ftHSS4x4x3/8 17.27 lb/ftHSS8x8x1/4 25.82 lb/ftHSS8x8x3/8 37.69 lb/ft

HSS6x6x3/8 — questions

How much does a HSS6x6x3/8 weigh per foot?
A HSS6x6x3/8 weighs 27.48 lb/ft. Over a 20-foot length that is 550 lb (0.275 tons); a 30-foot length is 824 lb.
What are the dimensions of a HSS6x6x3/8?
HSS6x6x3/8 is 6 in deep by 6 in wide with a 0.349 in design wall thickness (nominal 0.375 in), and a cross-sectional area of 7.58 in².
What is the moment of inertia and section modulus of a HSS6x6x3/8?
About its strong axis, HSS6x6x3/8 has a moment of inertia Ix of 39.5 in⁴ and a section modulus Sx of 13.2 in³, with a plastic section modulus Zx of 15.8 in³. Use these with your engineer's design values — they are geometric properties, not an allowable load.

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Sources & references

Estimates for planning purposes only. Verify all results against the code edition adopted in your jurisdiction and with your Authority Having Jurisdiction (AHJ). This tool is not a substitute for a licensed professional engineer. See our methodology, sources, and code editions.

Data: AISC Shapes Database v16.0, © AISC — used per its developer-use provision.