Efraim Shapiro has worked with wood, wood products, and most natural materials as a home remodeling professional for over 40 years. As a determined optimist and problem solver, he frequently looks for the most efficient ways to solve woodworking challenges. Efraim has invented many useful gadgets over the years and patented 3 inventions. Efraim's professional scope of work includes residential remodeling, additions, kitchens, baths, framing and finish work, electrical, plumbing, HVAC and custom built-ins, and furniture. He uses the 3D Ruler every day in various ways.