Graf Custom Hardwood engineers and manufactures the highest quality Engineered Hardwood flooring imaginable. We have products available in Select + Better, and Character Grades. The engineered flooring is quite similar to our solid hardwood flooring but designed with extra layers of plywood for stability and support. An engineered floor can withstand humid conditions with very little contractions and expansion. The layering of the plywood can also be tailored to respond specifically to the needs of your project.