1. The problem statement, all variables and given/known data Hi! I wasn't sure how to ask this, but my team and I are making a manila file folder bridge and we are stuck a specific part. We are looking to get the mass of the members and we decided to get it through multiplying the volume of the member by the density of manila file folder. The only problem is, we do not know the density of manila file folder. 2. Relevant equations p = m/V V = Width*length*thickness 3. The attempt at a solution I've spent all day searching for the density, but I have been unsuccessful. I thought that maybe someone here would happen to know where to look or knew the density. All leads are very much appreciated!