Just a quick question some one may know, whats the normal height (if there is one) off the ground to the bearer beam of a pergola. I am building a skillion style roof at the ledger against the back of the house its 3.2m high, but not sure how high the other end should be I cant really gauge whether 2.4 is goign to be so high or whether 2 m is too low. Anwy ideas