help, i am trying to level out my home but i do not have a clue on how to go about it. i am asking for any help. my house is sagging in the middle, it had been leveled about 3 years ago and needs to be done again. the house support beams are good, however, i need to know where i can start or how i begin and what if anything to watch for when i do it. my house sits on woodbeams supported by concrete post. i figured i could level with wedges and 2 by 4s. if u can help or advise, it would really help. i have looked for how to books at the library but no can find. thanks!