Licensed engineers, certified estimators, and landscape architects who bring real-world credentials to every calculator we create.
Our team spans four countries and brings decades of hands-on experience in structural engineering, cost estimation, civil engineering, and landscape architecture.
Every calculator is built by someone with verifiable professional credentials—licensed engineers, certified estimators, and registered architects with published work you can look up.
Our team brings professional-level accuracy to DIY projects. We know the difference between theoretical coverage rates and what actually happens on job sites.
Structural Calculator Developer
Licensed Structural Engineer, MSc
A FISE-certified structural engineer with an MSc from Aalto University. Ehsan has spent 11+ years designing bridges, retaining walls, and reinforced concrete foundations across Europe. His calculators bring professional engineering accuracy to DIY projects.
Certified Cost & Estimating Professional
CCP & CEP - AACE International
Hawkin started in insulation installation at 16 and became a senior estimator within 2.5 years. Now runs USMaterial Takeoff Services, working with the two largest insulation franchises in America.
Paint & Utility Calculator Developer
Licensed Civil Engineer, Licensed Master Plumber, MMEP
A licensed civil engineer and master plumber with over 10 years in structural design, site supervision, and project management. Cherry Jane holds an MMEP from Philippine Christian University and currently serves as Project Engineer at Universal Robina Corporation.
Landscape Calculator Developer
Landscape Architect
A landscape architect with 9+ years of experience, AAK member, and IFLA Young Climate Activist. Ruth founded Bloomwell, focused on circular economy solutions. Her calculators draw on real-world site design to deliver accurate landscape material estimates.
We don't just research—we actually do the projects. Every calculator is tested against real installations to verify accuracy.
We stay current with new materials, techniques, and industry standards. Our calculators evolve as the industry does.
Real user experiences drive our improvements. When someone finds an edge case, we update our calculations to handle it.
Use calculators built by licensed engineers and certified professionals. Get professional-grade accuracy for your DIY projects.
Browse Our CalculatorsBuilt by verified experts • Tested on real projects • Always improving