I was quite DISAPPOINTED after receiving this 18"x900' roll of white butcher paper (Boardwalk BUTCH1840900; about $29). It is so thin that it can be readily used as tracing paper. By claiming #40 weight I expected to get paper a little thicker than common typing/copy paper. It turns out that 20# typing paper is 25 percent heavier than this paper (equivalent 16#). After some research on a couple of paper industry sites it seems that manufacturers measure the "basis weight" differently for different types of paper. This allows the presumably technically accurate, but misleading, claim of 40# paper. Also, it is unsuitable as true butcher paper because there is no moisture barrier film. Even for dry wrapping you will need multiple layers in most applications. The seller should have known what its customers expect and described it in such terms.
I was hoping to use this as drawing paper for sketches and patterns in my shop. Now I have 1350 square feet of tracing paper, at best.
The good: cheap, includes plastic end caps for dispenser mounting rod
The bad: way thinner than reasonably expected, translucent, too heavy to return to seller for refund
I would not buy this again. It would be better to pay more for a useful roll of paper.