Weight for Steel Bars, Pipe, and Tubing (lb)

These formulas calculate the weight per foot for various pipe and structural shapes.

 

Weight for Steel Bars, Pipe, and Tubing (lb) formulas

\(\large{ W =  10.68 \; (D - t) \; t  }\)	(pipe and round tubing)
\(\large{ W =  13.60 \; [ (l + w) - t ] \; t }\)	(rectangular tube)
\(\large{ W =  13.60 \; (D - t) \; t  }\)	(square tube)
\(\large{ W =  0.2836 \; t \; 144  }\)	(plate)
\(\large{ W =  0.2225 \; d^2 \; t  }\)	(plate circle)
\(\large{ W =  0.2904 \; t \; 144  }\)	(sheet)
\(\large{ W =  3.403 \; t \; w  }\)	(flat bar)
\(\large{ W =  2.945 \; d^2  }\)	(hexagon bar)
\(\large{ W =  2.817 \; d^2  }\)	(octagon bar)
\(\large{ W =  2.673 \; d^2  }\)	(round bar)
\(\large{ W =  3.403 \; d^2  }\)	(square bar)

Where:

\(\large{ W }\) = pipe weight per foot (approximate)

\(\large{ d }\) = diameter

\(\large{ l }\) = length (long side)

\(\large{ D }\) = pipe outside diameter

\(\large{ t }\) = pipe thickness

\(\large{ w }\) = width (short side)