Google defines “Builder Grade”
“Builder grade” or “contractor grade” is defined as inexpensive products made from low-grade materials, as opposed to quality grade or custom grade materials that are more durable.
Is Cheaper Grade Better For My Home?
What’s In a Name?: To many, the term “builder grade” implies something with enough quality that a builder would use it. The name is a bit misleading since builders are technically using them but by no means are builder-grade materials the crème de la crème.
What is non-premium roofing materials mean to the homeowner?
A builder–grade home is one constructed from the most minimal, inexpensive materials you’ll find available. The term encompasses everything from windows to doors to tile to the paint you’ll see on your walls. … The concept of builder–grade largely comes into play when you’re buying new construction.