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Structural · C — channel

C12x25 Steel Channel — Dimensions & Properties

C12x25 weighs 25 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
25lb/ft
Depth
12in
Width
3.047in
Area
7.34in²
Shape
C12X25 · 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 × C12X25
500lb
Per piece
500lb
Pieces
1
Total
500lb
Tons
0.25t
bf 3.047"d 12"
ƒShow the math
  1. 1.Weight per foot (from AISC)per AISC Shapes Database v16.0

    C12X25 is a listed shape; its nominal weight is a published property.

    = 25 lb/ft
  2. 2.Length in feet
    length (in) ÷ 12
    240 ÷ 12
    = 20 ft
  3. 3.Weight per piece
    weight per foot × length
    25 × 20
    = 500 lb
  4. 4.Total weight
    weight per piece × quantity
    500 × 1
    = 500 lb
  5. 5.Convert to tons
    total lb ÷ 2000
    500 ÷ 2000
    = 0.25 tons

Section properties

Geometry
Weight
25lb/ft
Area, A
7.34in²
Depth, d
12in
Flange width, bf
3.047in
Flange thick, tf
0.501in
Web thick, tw
0.387in
Strong axis (x-x)
Ix
144in⁴
Sx
24in³
Zx
29.4in³
rx
4.43in
Weak axis (y-y)
Iy
4.45in⁴
Sy
1.87in³
Zy
3.82in³
ry
0.779in
Torsion & warping
J
0.538in⁴
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/ftC10x15.3 15.3 lb/ftC10x20 20 lb/ftC15x33.9 33.9 lb/ftC8x11.5 11.5 lb/ftC8x18.75 18.75 lb/ftC6x8.2 8.2 lb/ft

C12x25 — questions

How much does a C12x25 weigh per foot?
A C12x25 weighs 25 lb/ft. Over a 20-foot length that is 500 lb (0.25 tons); a 30-foot length is 750 lb.
What are the dimensions of a C12x25?
C12x25 has an actual depth of 12 in and a flange width of 3.047 in, a flange thickness of 0.501 in, and a web thickness of 0.387 in. Cross-sectional area is 7.34 in².
What is the moment of inertia and section modulus of a C12x25?
About its strong axis, C12x25 has a moment of inertia Ix of 144 in⁴ and a section modulus Sx of 24 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.