What is the quality of b grade laminate flooring? Does it scratch if a piece of paper touches it?
Laminate flooring is not that great to begin with, b grade is just junk to be perfectly honest. It is definitely worth it to spend the extra cash for quality stuff. You will be glad you did.
While not specific to laminate flooring, grade 'b' flooring in general is a step down from the top of the line, generally exhibits subtle flaws on the surface but maintains an even coating surface (that is to say, you don't have to fill extra space). With most hardwoods this translates to a rating of #1 or #2 common floors. With Laminate floors I would guess that there would be mild warping, and slight unevenness in the surface. Perhaps a lower quality laminate used, but mostly a lower grade particle board backing, which would lend itself to being cracked along the seems easier.
