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Structural · HSS — rectangular / square

HSS12x8x3/8 Steel Tube (HSS) — Dimensions & Properties

HSS12x8x3/8 weighs 47.9 lb/ft and is about 12 in deep. Below: the full AISC section properties, a scaled cross-section, and a pre-filled weight calculator.

Weight
47.9lb/ft
Depth
12in
Width
8in
Area
13.2in²
Shape
HSS12X8X3/8 · 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 × HSS12X8X3/8
958lb
Per piece
958lb
Pieces
1
Total
958lb
Tons
0.479t
B 8"Ht12"
ƒShow the math
  1. 1.Weight per foot (from AISC)per AISC Shapes Database v16.0

    HSS12X8X3/8 is a listed shape; its nominal weight is a published property.

    = 47.9 lb/ft
  2. 2.Length in feet
    length (in) ÷ 12
    240 ÷ 12
    = 20 ft
  3. 3.Weight per piece
    weight per foot × length
    47.9 × 20
    = 958 lb
  4. 4.Total weight
    weight per piece × quantity
    958 × 1
    = 958 lb
  5. 5.Convert to tons
    total lb ÷ 2000
    958 ÷ 2000
    = 0.479 tons

Section properties

Geometry
Weight
47.9lb/ft
Area, A
13.2in²
Depth, Ht
12in
Width, B
8in
Design wall, t
0.349in
Strong axis (x-x)
Ix
271in⁴
Sx
45.2in³
Zx
54.7in³
rx
4.53in
Weak axis (y-y)
Iy
139in⁴
Sy
34.9in³
Zy
39.8in³
ry
3.25in
Torsion & warping
J
274in⁴
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.

HSS10x6x3/8 37.69 lb/ftHSS8x8x1/4 25.82 lb/ftHSS8x8x3/8 37.69 lb/ftHSS8x8x1/2 48.85 lb/ftHSS8x4x1/4 19.02 lb/ftHSS8x6x1/4 22.42 lb/ft

HSS12x8x3/8 — questions

How much does a HSS12x8x3/8 weigh per foot?
A HSS12x8x3/8 weighs 47.9 lb/ft. Over a 20-foot length that is 958 lb (0.479 tons); a 30-foot length is 1,437 lb.
What are the dimensions of a HSS12x8x3/8?
HSS12x8x3/8 is 12 in deep by 8 in wide with a 0.349 in design wall thickness (nominal 0.375 in), and a cross-sectional area of 13.2 in².
What is the moment of inertia and section modulus of a HSS12x8x3/8?
About its strong axis, HSS12x8x3/8 has a moment of inertia Ix of 271 in⁴ and a section modulus Sx of 45.2 in³, with a plastic section modulus Zx of 54.7 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.