Posted by John Harvey (148.65.227.76) on March 29, 2008 at 02:00:04:
In Reply to: wall cracks posted by Jim Hayes on March 28, 2008 at 21:24:27:
Start by taking a string and stretching it tight across the whole house as much as you can. If you find air between the floor and the string in the middle, then you have a sag poblem. This can be adjusted by jack supports designed just for this purpose.