can't help on the sandpaper but i can say i wont go in the local homedepot ever again. Every time i go i leave angry, last time i went, i waited an hour to speak with the store manager who told me there wasn't anything he could really do to fix the level of service because he dosn't have enough employees. Bull.....it's not that hard to train people or make them care about their job. Anyways, I go to Lowes and OSH for everything now.