Engineering isn't about producing numbers.
It's about understanding why those numbers make sense.
Every RKALC tool is designed to help engineers think more clearly,
verify assumptions and design with confidence.
Every tool in RKALC exists because it solved a real engineering problem.
RKALC was built to support engineering judgement through transparent calculations,
visible assumptions and practical workflows not to replace the engineer making the decision.
I'm Rabee Kafina, a Chartered Structural Engineer based in Sydney.
For more than 24 years, I have worked across structural design, construction supervision, design management and project delivery in Australia and Dubai.
My experience includes high-rise residential towers, hotels, commercial developments, deep basements, temporary works, structural steel, reinforced concrete, precast systems, masonry, foundations and complex construction sequencing.
Throughout that career, I repeatedly encountered the same problem: engineers were switching between spreadsheets, disconnected programs and manual calculations simply to establish, check and communicate a design decision.
RKALC grew from my attempt to solve that problem. What started as a collection of tools for my own consulting work has evolved into a
platform that brings analysis, design and verification together while keeping assumptions, calculations and engineering judgement visible.