Q. This week: My house is about 70 years old and the floors on the first story shake when someone walks on them. The problem, I think, is that the floor joists are too narrow. They're only 7.5 inches ...

Building codes governing framed floors include an allowance for sagging, which sounds bad. But the allowable limit is 1/360 of the span, which isn’t much. Spread over a 45-foot-long joist — if you ...

When you take your kids to the local amusement park, a bouncy floor can be loads of fun. A bouncy floor in your own home … not so much. In the dwelling that you (well, you and the bank) actually own, ...