The Engineer Behind Every Set

Meet the Founder

Supun Jayawardhane, Founder & Engineering Lead
SUPUN JAYAWARDHANE · FOUNDER & ENGINEERING LEAD · CIVIL/STRUCTURAL DESIGN SPECIALIST
Permit-Readyformatted for city or county plan review
Code-Compliantdesigned to IBC, IRC, CBC & ASCE 7
Plan-Check Backedcorrections resolved at no extra cost
Money-Backguarantee if a package can't be accepted

Supun Jayawardhane is the founder and lead structural engineer of Structural Express. He has spent his career doing one thing: producing structural packages that plan reviewers accept — foundations, framing, lateral systems, calculations, and the drawings that tie them together.

His work spans single-family homes, additions, remodels, ADUs, and light-commercial structures across U.S. jurisdictions, including high-seismic California projects requiring full lateral analysis — shear walls, diaphragms, collectors, moment frames, and strong-wall systems designed to IBC, IRC, CBC, and ASCE 7.

"I believe structural engineering should be accurate and fully aligned with permit requirements. My role is to eliminate delays, simplify communication, and provide clear, code-compliant solutions that help professionals build with confidence."

Supun leads a small, hand-picked engineering team and personally reviews every package before it goes out. When you book a consult, you talk to him — the same engineer who will run your calculations, not an account manager reading a script.

Beyond project work, he has built internal design tools, calculation systems, and QA frameworks used across the firm — because consistent engineering comes from consistent process, not luck.