Custom Section Builder

> Point: click first outer vertex

Edge

Select an edge to set line or arc geometry.

Corner radius

Select a vertex to set its corner radius.

Close the outline, then Calculate.

Drawing is free. Create an account to calculate properties.

Close a polygon with at least 3 vertices before calculating.

Geometry

A—

P—

C_y—

C_z—

Second moments & principal axes

I_yy—

I_zz—

I_yz—

I₁₁—

I₂₂—

α—

r_yy—

r_zz—

Elastic section moduli

Z_yy—

Z_zz—

Z_yy⁺—

Z_yy⁻—

Z_zz⁺—

Z_zz⁻—

Z₁₁⁺—

Z₁₁⁻—

Z₂₂⁺—

Z₂₂⁻—

Plastic properties

S_yy—

S_zz—

S₁₁—

S₂₂—

PNA_y—

PNA_z—

sf_yy⁺—

sf_yy⁻—

sf_zz⁺—

sf_zz⁻—

Shear properties

A_sy—

A_sz—

Q_y—

Q_z—

C_y,s—

C_z,s—

Torsion & warping

J—

I_w—

β_y⁺—

β_y⁻—

β_z⁺—

β_z⁻—

β₁₁⁺—

β₁₁⁻—

β₂₂⁺—

β₂₂⁻—