Properties of a Rectangular Section
Width of beam (b)
Depth of beam (d)
Area (in2):A= (b*d)
Section Modulus (in3):S= (b*d2)/6
Moment of Inertia (in4): I= (b*d3)/12


Properties of a Circle
Diameter of Beam
Area (in2):A= Pi*(d2)/4
Section Modulus (in3):S= Pi*(d3)/32
Moment of Inertia (in4):I= Pi*(d4)/64