Sound deadening foam/mat, computer case modding enthusiasts know all about this stuff, its quite similar to what they use in cars. Covering a door in it is probably $50 or so, and the right brand ...

I've never tried making a room sound proof. I did find this. <br><br>Solid wood is better than a hollow door. Not too many interior doors use the heavier wood because it isn't cost effective.

In the bedrooms and office, Series 600 Sliding Doors are flanked by huge floor-to-ceiling fixed windows from Western Window Systems, as a slightly more budget-friendly option that allows for full ...