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Structural · C — channel

C15x33.9 Steel Channel — Dimensions & Properties

C15x33.9 weighs 33.9 lb/ft and is about 15 in deep. Below: the full AISC section properties, a scaled cross-section, and a pre-filled weight calculator.

Weight
33.9lb/ft
Depth
15in
Width
3.4in
Area
9.96in²
Shape
C15X33.9 · C — channel

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 × C15X33.9
678lb
Per piece
678lb
Pieces
1
Total
678lb
Tons
0.339t
bf 3.4"d 15"
ƒShow the math
  1. 1.Weight per foot (from AISC)per AISC Shapes Database v16.0

    C15X33.9 is a listed shape; its nominal weight is a published property.

    = 33.9 lb/ft
  2. 2.Length in feet
    length (in) ÷ 12
    240 ÷ 12
    = 20 ft
  3. 3.Weight per piece
    weight per foot × length
    33.9 × 20
    = 678 lb
  4. 4.Total weight
    weight per piece × quantity
    678 × 1
    = 678 lb
  5. 5.Convert to tons
    total lb ÷ 2000
    678 ÷ 2000
    = 0.339 tons

Section properties

Geometry
Weight
33.9lb/ft
Area, A
9.96in²
Depth, d
15in
Flange width, bf
3.4in
Flange thick, tf
0.65in
Web thick, tw
0.4in
Strong axis (x-x)
Ix
315in⁴
Sx
42in³
Zx
50.8in³
rx
5.62in
Weak axis (y-y)
Iy
8.07in⁴
Sy
3.09in³
Zy
5.48in³
ry
0.901in
Torsion & warping
J
1.01in⁴
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.

C12x20.7 20.7 lb/ftC12x25 25 lb/ftC10x15.3 15.3 lb/ftC10x20 20 lb/ftC8x11.5 11.5 lb/ftC8x18.75 18.75 lb/ft

C15x33.9 — questions

How much does a C15x33.9 weigh per foot?
A C15x33.9 weighs 33.9 lb/ft. Over a 20-foot length that is 678 lb (0.339 tons); a 30-foot length is 1,017 lb.
What are the dimensions of a C15x33.9?
C15x33.9 has an actual depth of 15 in and a flange width of 3.4 in, a flange thickness of 0.65 in, and a web thickness of 0.4 in. Cross-sectional area is 9.96 in².
What is the moment of inertia and section modulus of a C15x33.9?
About its strong axis, C15x33.9 has a moment of inertia Ix of 315 in⁴ and a section modulus Sx of 42 in³, with a plastic section modulus Zx of 50.8 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.