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Structural · HSS — rectangular / square

HSS8x8x3/8 Steel Tube (HSS) — Dimensions & Properties

HSS8x8x3/8 weighs 37.69 lb/ft and is about 8 in deep. Below: the full AISC section properties, a scaled cross-section, and a pre-filled weight calculator.

Weight
37.69lb/ft
Depth
8in
Width
8in
Area
10.4in²
Shape
HSS8X8X3/8 · 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 × HSS8X8X3/8
754lb
Per piece
753.8lb
Pieces
1
Total
753.8lb
Tons
0.377t
B 8"Ht8"
ƒShow the math
  1. 1.Weight per foot (from AISC)per AISC Shapes Database v16.0

    HSS8X8X3/8 is a listed shape; its nominal weight is a published property.

    = 37.69 lb/ft
  2. 2.Length in feet
    length (in) ÷ 12
    240 ÷ 12
    = 20 ft
  3. 3.Weight per piece
    weight per foot × length
    37.69 × 20
    = 753.8 lb
  4. 4.Total weight
    weight per piece × quantity
    753.8 × 1
    = 753.8 lb
  5. 5.Convert to tons
    total lb ÷ 2000
    753.8 ÷ 2000
    = 0.377 tons

Section properties

Geometry
Weight
37.69lb/ft
Area, A
10.4in²
Depth, Ht
8in
Width, B
8in
Design wall, t
0.349in
Strong axis (x-x)
Ix
100in⁴
Sx
25.1in³
Zx
29.4in³
rx
3.1in
Weak axis (y-y)
Iy
100in⁴
Sy
25.1in³
Zy
29.4in³
ry
3.1in
Torsion & warping
J
163in⁴
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.

HSS8x8x1/4 25.82 lb/ftHSS8x8x1/2 48.85 lb/ftHSS8x4x1/4 19.02 lb/ftHSS8x6x1/4 22.42 lb/ftHSS6x6x1/4 19.02 lb/ftHSS6x6x3/8 27.48 lb/ftHSS6x6x1/2 35.24 lb/ftHSS6x4x1/4 15.62 lb/ftHSS10x6x3/8 37.69 lb/ftHSS5x5x1/4 15.62 lb/ft

HSS8x8x3/8 — questions

How much does a HSS8x8x3/8 weigh per foot?
A HSS8x8x3/8 weighs 37.69 lb/ft. Over a 20-foot length that is 754 lb (0.377 tons); a 30-foot length is 1,131 lb.
What are the dimensions of a HSS8x8x3/8?
HSS8x8x3/8 is 8 in deep by 8 in wide with a 0.349 in design wall thickness (nominal 0.375 in), and a cross-sectional area of 10.4 in².
What is the moment of inertia and section modulus of a HSS8x8x3/8?
About its strong axis, HSS8x8x3/8 has a moment of inertia Ix of 100 in⁴ and a section modulus Sx of 25.1 in³, with a plastic section modulus Zx of 29.4 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.