The contractors, specialists, and DIY enthusiasts who bring real-world experience to every calculator we create.
Each team member has learned from the school of hard knocks—making mistakes, refining techniques, and perfecting calculations so you don't have to.
Every calculator on our site was born from someone's real-world experience—usually involving a miscalculation that led to extra trips to the store or leftover materials.
Our team brings professional-level accuracy to DIY projects. We know the difference between theoretical coverage rates and what actually happens on job sites.
Lead Calculator Developer
Licensed Contractor & DIY Expert
David started DIYdigits after miscalculating materials on his own deck project resulted in three trips to Home Depot. His background in commercial construction helps bring professional-grade accuracy to DIY planning.
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 & Finishing Expert
Professional Painter & Color Consultant
After years of watching customers buy too much (or too little) paint, Tom developed calculation methods that account for real-world coverage rates and waste factors.
Landscape Materials Expert
Landscape Designer & Hardscape Specialist
Sarah's expertise comes from designing everything from simple garden paths to complex drainage systems. Her calculators help DIYers avoid the common mistake of underestimating material needs.
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 people who've made the mistakes so you don't have to. Get professional-grade accuracy for your DIY projects.
Browse Our CalculatorsBacked by real experience • Tested on actual projects • Always improving