In addition to the informaton that you already received, hereĀ is a Q&A I wrote back in 1998 that might help.
Question:I have some minor repairs that need to be done.Can I use an unlicensed handym ... read more
When sunken living rooms were the rage, many of them were below grade. Later on some decided that being on all one level was more desirable so it became popular to fill them with concrete to the level ... read more