Section Equivalence Finder
Find sections whose weight, geometry, stiffness or section modulus is within a chosen tolerance of a reference section.
Not a design substitution. Results are numerically similar only. Any substitution must be checked by a qualified engineer for strength, stability, serviceability, connections, fire and corrosion requirements.
Method & assumptions
Deviation (%) = (Candidate − Reference) / Reference × 100
Criteria: mass, overall geometry (depth & width), stiffness (Ix, Iy) or elastic section modulus (Zx, Zy)
Equivalence by one or two parameters does not establish design adequacy. Any substitution must be checked by a qualified engineer for strength, stability, serviceability, connections and fire/corrosion requirements.