C12X25 Dimensions & Weight

C12X25 is an AISC American Standard channel with an actual depth of 12 in and a 3.1 in flange, weighing 25 lb per foot — commonly used for stair stringers, lintels, trimmers, and edge framing.

Get the AISC weights table (Excel): C12X25 and every other size

Free. Needs a free Steelflo account (also includes 3 free takeoffs, no card).

or start a free takeoff to count C12X25 on your drawing.

Weights for every AISC size, in Excel. All AISC sizes in Excel. Free with a Steelflo account.

Get the weights table

C12X25 Dimensions

Property	Imperial	Metric
Depth (d)	12 in	304.8 mm
Flange width (bf)	3.05 in	77.5 mm
Cross-section area (A)	7.35 in²	47.4 cm²
Weight	25 lb/ft	37.2 kg/m

Standard: AISC. Values from the published section tables; dimensions not listed here are not shown rather than estimated.

What does C12X25 weigh and cost?

C12X25 weighs 25 lb per foot. At an example material price of $0.92/lb that is about $23.00 per foot. Set your quantity, length, and price to total your own run:

QtyLength (ft)$ / lb

Count them on my drawing →

Total weight

500 lbs

Material cost

$460.00

Material only, example pricing. Actual steel pricing varies by region, grade, quantity, and market conditions — use your own supplier numbers for real bids.

Pricing more than one size? Build a full member list in the free calculator →

Tallying by hand?

Free steel takeoff template (Excel) with 4,600+ sections across 6 standards built in

Free. Needs a free Steelflo account (also includes 3 free takeoffs, no card).